Re: CMOS sensor for MF

2014-01-21 Thread Dario Bonazza

Nothing for granted, of course. I wrote that just because:

1 - A new CMOS sensor means a new generation of MF cameras. If Ricoh want to 
stay in that business (and I understand they want), they have to keep on 
pace.
2 - If Hasselblad now has a CMOS sensor suitable for them, Pentax can have 
it too.


Dario

-Messaggio originale- 
From: John

Sent: Tuesday, January 21, 2014 4:42 PM
To: Pentax-Discuss Mail List
Subject: Re: CMOS sensor for MF

On 1/21/2014 9:21 AM, Dario Bonazza wrote:

Looks like we'll see an updated 645D sooner or later, featuring CMOS
 sensor technology:
http://press.hasselblad.com/press-releases/2014/2014-01-21_h5d-50c.aspx

 Dario



That's interesting, but someone is going to have to explain how
Hasselblad's new sensor means anything about the 645D?

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Re: CMOS sensor for MF

2014-01-21 Thread John

On 1/21/2014 9:21 AM, Dario Bonazza wrote:

Looks like we'll see an updated 645D sooner or later, featuring CMOS
 sensor technology:
http://press.hasselblad.com/press-releases/2014/2014-01-21_h5d-50c.aspx

 Dario



That's interesting, but someone is going to have to explain how
Hasselblad's new sensor means anything about the 645D?

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Re: CMOS sensor for MF

2014-01-21 Thread Darren Addy
The line between the dots (that Dario is connecting) is that the
manufacturer that is making the CMOS sensor to be used in the
Hasselblad is SONY. That is not insignificant.
http://www.pocket-lint.com/news/126702-hasselblad-reveals-first-medium-format-cmos-sensor-opening-the-door-for-other-photography-brands

While every company wants to make a profit on everything that they
make, the camera body is (in essence) the razor that can be given away
at cost in order to sell the razor blades (lenses, grips, flashes, and
other accessories). If there are no bodies there is no demand for
those. It also provides a bragging rights territory. If Pentax comes
out with a camera that closely matches the functionality of the
Hasselblad at a fraction of the price, then we are back to occupying
the same territory that made the Pentax 67 and 645/645n such popular
cameras with the medium format demographic.

It is worth remembering that the new PRIME III (Fujitsu image
processor) has the capabilities to handle the input from a medium
format sensor. And a CMOS would have video capabilities, meaning a
whole new video market for Pentax 645 lenses. Add in the other things
that Pentax has learned from the K-3 line (and before) and you have
the potential for a separate processor to help with exposure and white
balance, improved AF performance, and perhaps even the adjustable AA
of the K-3 (or no AA at all, like the K-5 IIs).


On Tue, Jan 21, 2014 at 9:46 AM, Dario Bonazza
dario.bona...@virgilio.it wrote:
 Nothing for granted, of course. I wrote that just because:

 1 - A new CMOS sensor means a new generation of MF cameras. If Ricoh want to
 stay in that business (and I understand they want), they have to keep on
 pace.
 2 - If Hasselblad now has a CMOS sensor suitable for them, Pentax can have
 it too.

 Dario

 -Messaggio originale- From: John
 Sent: Tuesday, January 21, 2014 4:42 PM
 To: Pentax-Discuss Mail List
 Subject: Re: CMOS sensor for MF


 On 1/21/2014 9:21 AM, Dario Bonazza wrote:

 Looks like we'll see an updated 645D sooner or later, featuring CMOS
  sensor technology:
 http://press.hasselblad.com/press-releases/2014/2014-01-21_h5d-50c.aspx

  Dario


 That's interesting, but someone is going to have to explain how
 Hasselblad's new sensor means anything about the 645D?

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Re: CMOS sensor for MF

2014-01-21 Thread Darren Addy
In thinking about it, another interesting part of the MF sensor
company being SONY is that there have been no rumors of Sony-branded
cameras in the MF space (at least to this point). With their other
sensor sizes, there is a bit of a conflict of interest: Use it in a
Sony-branded camera and give it a lead time in the marketplace before
allowing other companies to put the sensors in their cameras. But if
Sony has no dog in this fight (if you will pardon the expression)
then it is in Sony's interests to sell as many as they can produce. It
is doubtful, in my mind, that any one company (like Hasselblad) could
dictate terms that would keep other manufacturers from getting their
share of the sensors they produce.

If that is true, the question is whether Ricoh will be different from
Hoya when it comes to paying the price for a first generation product
rather than wait for the component price to come down.

I don't think there is any question that a 645D II will be coming out
sometime in 2014. I think putting a CMOS in makes sense, but I'm
wondering if it can be done at the original price point of the 645D
(which was $9995, if memory serves).



On Tue, Jan 21, 2014 at 10:16 AM, Darren Addy pixelsmi...@gmail.com wrote:
 The line between the dots (that Dario is connecting) is that the
 manufacturer that is making the CMOS sensor to be used in the
 Hasselblad is SONY. That is not insignificant.
 http://www.pocket-lint.com/news/126702-hasselblad-reveals-first-medium-format-cmos-sensor-opening-the-door-for-other-photography-brands

 While every company wants to make a profit on everything that they
 make, the camera body is (in essence) the razor that can be given away
 at cost in order to sell the razor blades (lenses, grips, flashes, and
 other accessories). If there are no bodies there is no demand for
 those. It also provides a bragging rights territory. If Pentax comes
 out with a camera that closely matches the functionality of the
 Hasselblad at a fraction of the price, then we are back to occupying
 the same territory that made the Pentax 67 and 645/645n such popular
 cameras with the medium format demographic.

 It is worth remembering that the new PRIME III (Fujitsu image
 processor) has the capabilities to handle the input from a medium
 format sensor. And a CMOS would have video capabilities, meaning a
 whole new video market for Pentax 645 lenses. Add in the other things
 that Pentax has learned from the K-3 line (and before) and you have
 the potential for a separate processor to help with exposure and white
 balance, improved AF performance, and perhaps even the adjustable AA
 of the K-3 (or no AA at all, like the K-5 IIs).


 On Tue, Jan 21, 2014 at 9:46 AM, Dario Bonazza
 dario.bona...@virgilio.it wrote:
 Nothing for granted, of course. I wrote that just because:

 1 - A new CMOS sensor means a new generation of MF cameras. If Ricoh want to
 stay in that business (and I understand they want), they have to keep on
 pace.
 2 - If Hasselblad now has a CMOS sensor suitable for them, Pentax can have
 it too.

 Dario

 -Messaggio originale- From: John
 Sent: Tuesday, January 21, 2014 4:42 PM
 To: Pentax-Discuss Mail List
 Subject: Re: CMOS sensor for MF


 On 1/21/2014 9:21 AM, Dario Bonazza wrote:

 Looks like we'll see an updated 645D sooner or later, featuring CMOS
  sensor technology:
 http://press.hasselblad.com/press-releases/2014/2014-01-21_h5d-50c.aspx

  Dario


 That's interesting, but someone is going to have to explain how
 Hasselblad's new sensor means anything about the 645D?

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 Photographers must learn not to be ashamed to have their photographs
 look like photographs.
 ~ Alfred Stieglitz



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Re: CMOS sensor for MF

2014-01-21 Thread Ken Waller

That's interesting, but someone is going to have to explain how
Hasselblad's new sensor means anything about the 645D?


Competition ?

Kenneth Waller
http://www.pentaxphotogallery.com/kennethwaller

- Original Message - 
From: John johnsess...@yahoo.com

Subject: Re: CMOS sensor for MF



On 1/21/2014 9:21 AM, Dario Bonazza wrote:

Looks like we'll see an updated 645D sooner or later, featuring CMOS
 sensor technology:
http://press.hasselblad.com/press-releases/2014/2014-01-21_h5d-50c.aspx

 Dario



That's interesting, but someone is going to have to explain how
Hasselblad's new sensor means anything about the 645D?



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Re: CMOS sensor for MF

2014-01-21 Thread John

Both arguments apply equally well to why Ricoh should be bringing out a
full-frame Pentax DSLR. Do you see that on the horizon as well?

On 1/21/2014 10:46 AM, Dario Bonazza wrote:

Nothing for granted, of course. I wrote that just because:

1 - A new CMOS sensor means a new generation of MF cameras. If Ricoh
 want to stay in that business (and I understand they want), they
have to keep on pace. 2 - If Hasselblad now has a CMOS sensor
suitable for them, Pentax can have it too.

Dario

-Messaggio originale- From: John Sent: Tuesday, January 21,
2014 4:42 PM To: Pentax-Discuss Mail List Subject: Re: CMOS sensor
for MF

On 1/21/2014 9:21 AM, Dario Bonazza wrote:

Looks like we'll see an updated 645D sooner or later, featuring
CMOS sensor technology:
http://press.hasselblad.com/press-releases/2014/2014-01-21_h5d-50c.aspx




Dario




That's interesting, but someone is going to have to explain how
Hasselblad's new sensor means anything about the 645D?



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Re: CMOS sensor for MF

2014-01-21 Thread Dario Bonazza

John,
Ricoh CURRENTLY HAS a Pentax MF digital system to keep updated with 
competition.

That does not apply to FF.

Dario

-Messaggio originale- 
From: John

Sent: Tuesday, January 21, 2014 10:58 PM
To: Pentax-Discuss Mail List
Subject: Re: CMOS sensor for MF

Both arguments apply equally well to why Ricoh should be bringing out a
full-frame Pentax DSLR. Do you see that on the horizon as well?

On 1/21/2014 10:46 AM, Dario Bonazza wrote:

Nothing for granted, of course. I wrote that just because:

1 - A new CMOS sensor means a new generation of MF cameras. If Ricoh
 want to stay in that business (and I understand they want), they
have to keep on pace. 2 - If Hasselblad now has a CMOS sensor
suitable for them, Pentax can have it too.

Dario

-Messaggio originale- From: John Sent: Tuesday, January 21,
2014 4:42 PM To: Pentax-Discuss Mail List Subject: Re: CMOS sensor
for MF

On 1/21/2014 9:21 AM, Dario Bonazza wrote:

Looks like we'll see an updated 645D sooner or later, featuring
CMOS sensor technology:
http://press.hasselblad.com/press-releases/2014/2014-01-21_h5d-50c.aspx




Dario




That's interesting, but someone is going to have to explain how
Hasselblad's new sensor means anything about the 645D?



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Re: CMOS sensor for MF

2014-01-21 Thread John

OTOH, they do have Pentax DSLRs that they apparently don't care about
keeping up with the competition, so why should they see MF digital any
differently?

On 1/21/2014 5:02 PM, Dario Bonazza wrote:

John,
Ricoh CURRENTLY HAS a Pentax MF digital system to keep updated with
competition.
That does not apply to FF.

Dario

-Messaggio originale- From: John
Sent: Tuesday, January 21, 2014 10:58 PM
To: Pentax-Discuss Mail List
Subject: Re: CMOS sensor for MF

Both arguments apply equally well to why Ricoh should be bringing out a
full-frame Pentax DSLR. Do you see that on the horizon as well?

On 1/21/2014 10:46 AM, Dario Bonazza wrote:

Nothing for granted, of course. I wrote that just because:

1 - A new CMOS sensor means a new generation of MF cameras. If Ricoh
 want to stay in that business (and I understand they want), they
have to keep on pace. 2 - If Hasselblad now has a CMOS sensor
suitable for them, Pentax can have it too.

Dario

-Messaggio originale- From: John Sent: Tuesday, January 21,
2014 4:42 PM To: Pentax-Discuss Mail List Subject: Re: CMOS sensor
for MF

On 1/21/2014 9:21 AM, Dario Bonazza wrote:

Looks like we'll see an updated 645D sooner or later, featuring
CMOS sensor technology:
http://press.hasselblad.com/press-releases/2014/2014-01-21_h5d-50c.aspx




Dario




That's interesting, but someone is going to have to explain how
Hasselblad's new sensor means anything about the 645D?





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Re: CMOS sensor for MF

2014-01-21 Thread Bruce Walker
In what way is the K-3 not keeping up with state-of-the-art APS-C
DSLRs? In fact I think it's a category leader presently. And the other
current models: pretty much the same story in each of their respective
categories.

The only category where Pentax isn't keeping up is FF, which is a
mythical one only kept alive by the whinging fanboy base.


On Tue, Jan 21, 2014 at 8:51 PM, John johnsess...@yahoo.com wrote:
 OTOH, they do have Pentax DSLRs that they apparently don't care about
 keeping up with the competition, so why should they see MF digital any
 differently?


 On 1/21/2014 5:02 PM, Dario Bonazza wrote:

 John,
 Ricoh CURRENTLY HAS a Pentax MF digital system to keep updated with
 competition.
 That does not apply to FF.

 Dario

 -Messaggio originale- From: John
 Sent: Tuesday, January 21, 2014 10:58 PM
 To: Pentax-Discuss Mail List
 Subject: Re: CMOS sensor for MF

 Both arguments apply equally well to why Ricoh should be bringing out a
 full-frame Pentax DSLR. Do you see that on the horizon as well?

 On 1/21/2014 10:46 AM, Dario Bonazza wrote:

 Nothing for granted, of course. I wrote that just because:

 1 - A new CMOS sensor means a new generation of MF cameras. If Ricoh
  want to stay in that business (and I understand they want), they
 have to keep on pace. 2 - If Hasselblad now has a CMOS sensor
 suitable for them, Pentax can have it too.

 Dario

 -Messaggio originale- From: John Sent: Tuesday, January 21,
 2014 4:42 PM To: Pentax-Discuss Mail List Subject: Re: CMOS sensor
 for MF

 On 1/21/2014 9:21 AM, Dario Bonazza wrote:

 Looks like we'll see an updated 645D sooner or later, featuring
 CMOS sensor technology:
 http://press.hasselblad.com/press-releases/2014/2014-01-21_h5d-50c.aspx



 Dario



 That's interesting, but someone is going to have to explain how
 Hasselblad's new sensor means anything about the 645D?



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Re: CMOS sensor for MF

2014-01-21 Thread Paul Stenquist


Paul via phone

 On Jan 21, 2014, at 8:51 PM, John johnsess...@yahoo.com wrote:
 
 OTOH, they do have Pentax DSLRs that they apparently don't care about
 keeping up with the competition, so why should they see MF digital any
 differently?
 
Pentax has kept up quite well in APS-C. Obviously they've chosen not to play in 
the 24x36 arena, so keeping up is irrelevant. They haven't kept up in pro 
video either.
 On 1/21/2014 5:02 PM, Dario Bonazza wrote:
 John,
 Ricoh CURRENTLY HAS a Pentax MF digital system to keep updated with
 competition.
 That does not apply to FF.
 
 Dario
 
 -Messaggio originale- From: John
 Sent: Tuesday, January 21, 2014 10:58 PM
 To: Pentax-Discuss Mail List
 Subject: Re: CMOS sensor for MF
 
 Both arguments apply equally well to why Ricoh should be bringing out a
 full-frame Pentax DSLR. Do you see that on the horizon as well?
 
 On 1/21/2014 10:46 AM, Dario Bonazza wrote:
 Nothing for granted, of course. I wrote that just because:
 
 1 - A new CMOS sensor means a new generation of MF cameras. If Ricoh
 want to stay in that business (and I understand they want), they
 have to keep on pace. 2 - If Hasselblad now has a CMOS sensor
 suitable for them, Pentax can have it too.
 
 Dario
 
 -Messaggio originale- From: John Sent: Tuesday, January 21,
 2014 4:42 PM To: Pentax-Discuss Mail List Subject: Re: CMOS sensor
 for MF
 
 On 1/21/2014 9:21 AM, Dario Bonazza wrote:
 Looks like we'll see an updated 645D sooner or later, featuring
 CMOS sensor technology:
 http://press.hasselblad.com/press-releases/2014/2014-01-21_h5d-50c.aspx
 Dario
 
 That's interesting, but someone is going to have to explain how
 Hasselblad's new sensor means anything about the 645D?
 
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Re: CMOS sensor for MF

2014-01-21 Thread P.J. Alling
Ricoh may want to stay in that business, but the 645D needed a refresh 
two years ago, so the question is will it be viable for them.


On 1/21/2014 10:46 AM, Dario Bonazza wrote:

Nothing for granted, of course. I wrote that just because:

1 - A new CMOS sensor means a new generation of MF cameras. If Ricoh 
want to stay in that business (and I understand they want), they have 
to keep on pace.
2 - If Hasselblad now has a CMOS sensor suitable for them, Pentax can 
have it too.


Dario

-Messaggio originale- From: John
Sent: Tuesday, January 21, 2014 4:42 PM
To: Pentax-Discuss Mail List
Subject: Re: CMOS sensor for MF

On 1/21/2014 9:21 AM, Dario Bonazza wrote:

Looks like we'll see an updated 645D sooner or later, featuring CMOS
 sensor technology:
http://press.hasselblad.com/press-releases/2014/2014-01-21_h5d-50c.aspx

 Dario



That's interesting, but someone is going to have to explain how
Hasselblad's new sensor means anything about the 645D?




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Re: CMOS vs. CCD colours?

2009-07-30 Thread Godfrey DiGiorgi
2009/7/29 Ralf R. Radermacher fotor...@gmx.de:
 After using a K10D for a few years I find that the colours I'm getting
 from my new K-7 are a trifle odd, to put it mildly.

 Particularly my sky colours now look like 1950's bathroom tiles. Some
 awful cyanish cast that I have only had with the K10D in severely
 overexposed shots. Grey sky comes out with a distinct blueish cast.

 I'm shooting RAW and talking about what I get to see when I open the RAW
 files in Lightroom, with the same settings and exactly the same way I've
 done with my K10D files before.

 The camera is set to AWB, just like the K10D, as well. Colours space in
 both cases is Adobe RGB.

 Any suggestions?

If you're capturing RAW format, whether DNG or PEF, color space
setting in the camera is irrelevant.

The issue is a camera calibration issue. Nothing to do with the
technology of the sensor, or everything depending upon how you want to
look at it.. but the difference between CMOS and CCD is not relevant.

The issue is that Lightroom does not have any calibration tables for
the K7 as yet, AFAIK. So the thing to do is get the DNG Profile
Editor, shoot a couple of controlled tests with a Macbeth Color
Checker or equivalent, and create a good calibration profile for it.
Install that as the default to use when processing K7 RAW files and
your colors should be accurate.

-- 
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  www.gdgphoto.com
  www.flickr.com/photos/gdgphoto
  www.twitter.com/godfreydigiorgi

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Re: CMOS vs. CCD colours?

2009-07-30 Thread Charles Robinson

On Jul 30, 2009, at 10:26, Godfrey DiGiorgi wrote:


The issue is that Lightroom does not have any calibration tables for
the K7 as yet, AFAIK. So the thing to do is get the DNG Profile
Editor, shoot a couple of controlled tests with a Macbeth Color
Checker or equivalent, and create a good calibration profile for it.
Install that as the default to use when processing K7 RAW files and
your colors should be accurate.



That's a big 10-4..  the RAW files I shot with the k7 last night look  
HORRIBLE in Lightroom at the moment.  Very bright, and a severe  
magenta shift.


It figures that with something brand-new that it's not all sorted out  
in Adobe-land yet.  Patience


 -Charles

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Re: CMOS vs. CCD colours?

2009-07-30 Thread paul stenquist
Adobe has worked out K7 specs for PSCS4 ACR. RAW images open nicely in  
that converter.

Paul
On Jul 30, 2009, at 12:33 PM, Charles Robinson wrote:


On Jul 30, 2009, at 10:26, Godfrey DiGiorgi wrote:


The issue is that Lightroom does not have any calibration tables for
the K7 as yet, AFAIK. So the thing to do is get the DNG Profile
Editor, shoot a couple of controlled tests with a Macbeth Color
Checker or equivalent, and create a good calibration profile for it.
Install that as the default to use when processing K7 RAW files and
your colors should be accurate.



That's a big 10-4..  the RAW files I shot with the k7 last night  
look HORRIBLE in Lightroom at the moment.  Very bright, and a severe  
magenta shift.


It figures that with something brand-new that it's not all sorted  
out in Adobe-land yet.  Patience


-Charles

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Minneapolis, MN
http://charles.robinsontwins.org
http://www.facebook.com/charles.robinson


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Re: CMOS vs. CCD colours?

2009-07-30 Thread Matthew Montgomery


On Jul 30, 2009, at 1:22 PM, paul stenquist wrote:

Adobe has worked out K7 specs for PSCS4 ACR. RAW images open nicely  
in that converter.

Paul


Lightroom 2.4 lists support for the K-7. Out of curiosity, is this the  
version used that renders the K-7 RAW files so poorly?



On Jul 30, 2009, at 12:33 PM, Charles Robinson wrote:


On Jul 30, 2009, at 10:26, Godfrey DiGiorgi wrote:


The issue is that Lightroom does not have any calibration tables for
the K7 as yet, AFAIK. So the thing to do is get the DNG Profile
Editor, shoot a couple of controlled tests with a Macbeth Color
Checker or equivalent, and create a good calibration profile for it.
Install that as the default to use when processing K7 RAW files and
your colors should be accurate.



That's a big 10-4..  the RAW files I shot with the k7 last night  
look HORRIBLE in Lightroom at the moment.  Very bright, and a  
severe magenta shift.


It figures that with something brand-new that it's not all sorted  
out in Adobe-land yet.  Patience


--
Matthew Montgomery
matt...@electricjunk.com






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Re: CMOS vs. CCD colours?

2009-07-30 Thread Ralf R. Radermacher
Matthew Montgomery matt...@electricjunk.com wrote:

 Lightroom 2.4 lists support for the K-7. Out of curiosity, is this the
 version used that renders the K-7 RAW files so poorly?

Quite so. Here at least. 

Ralf

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Re: CMOS vs. CCD colours?

2009-07-30 Thread Charles Robinson

On Jul 30, 2009, at 13:32, Matthew Montgomery wrote:



On Jul 30, 2009, at 1:22 PM, paul stenquist wrote:

Adobe has worked out K7 specs for PSCS4 ACR. RAW images open nicely  
in that converter.

Paul


Lightroom 2.4 lists support for the K-7. Out of curiosity, is this  
the version used that renders the K-7 RAW files so poorly?




That's my experience, yes.  I'm at 2.4.

 -Charles

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Re: CMOS vs. CCD colours?

2009-07-30 Thread William Robb


- Original Message - 
From: Charles Robinson

Subject: Re: CMOS vs. CCD colours?



On Jul 30, 2009, at 13:32, Matthew Montgomery wrote:



On Jul 30, 2009, at 1:22 PM, paul stenquist wrote:

Adobe has worked out K7 specs for PSCS4 ACR. RAW images open nicely  in 
that converter.

Paul


Lightroom 2.4 lists support for the K-7. Out of curiosity, is this  the 
version used that renders the K-7 RAW files so poorly?




That's my experience, yes.  I'm at 2.4.



I'm running 2.4 also. My K7 DNGs are perhaps a tad warmer than those from my 
K20, but it certainly isn't objectionable.


William Robb 



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Re: CMOS vs. CCD colours?

2009-07-30 Thread Ralf R. Radermacher
William Robb war...@gmail.com wrote:

 I'm running 2.4 also. My K7 DNGs are perhaps a tad warmer than those from my
 K20, but it certainly isn't objectionable.

Any tendency of blue skies veering towards cyan? This is my main prob. 

Difference between Lightroom 2.4 for Mac and Windows? Mac Dual G5 under
10.5.7 here.

Ralf

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Re: CMOS vs. CCD colours?

2009-07-30 Thread William Robb


- Original Message - 
From: Ralf R. Radermacher

Subject: Re: CMOS vs. CCD colours?




Any tendency of blue skies veering towards cyan? This is my main prob.

Difference between Lightroom 2.4 for Mac and Windows? Mac Dual G5 under
10.5.7 here.


I'll have to check that for you. I won't be able to do so until later. I 
haven't shot anything yet with enough sky to tell me.
I'm running Windows XP Pro, so there could very well be a difference between 
the two programs.


William Robb 



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Re: CMOS vs. CCD colours?

2009-07-30 Thread Godfrey DiGiorgi
On Thu, Jul 30, 2009 at 1:38 PM, William Robbwar...@gmail.com wrote:
 Any tendency of blue skies veering towards cyan? This is my main prob.

 Difference between Lightroom 2.4 for Mac and Windows? Mac Dual G5 under
 10.5.7 here.


 I'll have to check that for you. I won't be able to do so until later. I
 haven't shot anything yet with enough sky to tell me.
 I'm running Windows XP Pro, so there could very well be a difference between
 the two programs.

Good to hear that LR 2.4 is supporting the K7 already ... I haven't
been following it specifically on that count. It would also be
interesting to hear if there are differences in the calibrations with
out of the camera DNG vs PEF files too.

In the end, however, pick up the DNG Profile Editor and create a
calibration file that you like, set it up as the default, and you
should be good to go. This is an amazingly powerful capability.
-- 
Godfrey
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Re: CMOS vs. CCD colours?

2009-07-30 Thread Bob Sullivan
Ralf,
I'm not having any problems with Lightroom 2.4, but I installed the
2.3 to 2.4 upgrade at the same time I got the K-7.  My recollection is
that Adobe had me install the same fix as Paul S is using for PSCS4
ACR and RAW images.  Hope this helps.
Regards,  Bob S.

On Thu, Jul 30, 2009 at 1:22 PM, paul stenquistpnstenqu...@comcast.net wrote:
 Adobe has worked out K7 specs for PSCS4 ACR. RAW images open nicely in that
 converter.
 Paul
 On Jul 30, 2009, at 12:33 PM, Charles Robinson wrote:

 On Jul 30, 2009, at 10:26, Godfrey DiGiorgi wrote:

 The issue is that Lightroom does not have any calibration tables for
 the K7 as yet, AFAIK. So the thing to do is get the DNG Profile
 Editor, shoot a couple of controlled tests with a Macbeth Color
 Checker or equivalent, and create a good calibration profile for it.
 Install that as the default to use when processing K7 RAW files and
 your colors should be accurate.


 That's a big 10-4..  the RAW files I shot with the k7 last night look
 HORRIBLE in Lightroom at the moment.  Very bright, and a severe magenta
 shift.

 It figures that with something brand-new that it's not all sorted out in
 Adobe-land yet.  Patience

 -Charles

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Re: CMOS vs. CCD colours?

2009-07-30 Thread Bob Sullivan
More specifically, Adobe recommended installing an update to get
Photoshop Elements 7.0 to recognize K-7 DNG's.  I'm running PS
Elements 5.0 but did the upgrade anyway.  Colors are fine in both
Lightroom 2.4 and Elements 5.0 on my Windows machine.
Regards,  Bob S.

On Thu, Jul 30, 2009 at 11:19 PM, Bob Sullivanrf.sulli...@gmail.com wrote:
 Ralf,
 I'm not having any problems with Lightroom 2.4, but I installed the
 2.3 to 2.4 upgrade at the same time I got the K-7.  My recollection is
 that Adobe had me install the same fix as Paul S is using for PSCS4
 ACR and RAW images.  Hope this helps.
 Regards,  Bob S.

 On Thu, Jul 30, 2009 at 1:22 PM, paul stenquistpnstenqu...@comcast.net 
 wrote:
 Adobe has worked out K7 specs for PSCS4 ACR. RAW images open nicely in that
 converter.
 Paul
 On Jul 30, 2009, at 12:33 PM, Charles Robinson wrote:

 On Jul 30, 2009, at 10:26, Godfrey DiGiorgi wrote:

 The issue is that Lightroom does not have any calibration tables for
 the K7 as yet, AFAIK. So the thing to do is get the DNG Profile
 Editor, shoot a couple of controlled tests with a Macbeth Color
 Checker or equivalent, and create a good calibration profile for it.
 Install that as the default to use when processing K7 RAW files and
 your colors should be accurate.


 That's a big 10-4..  the RAW files I shot with the k7 last night look
 HORRIBLE in Lightroom at the moment.  Very bright, and a severe magenta
 shift.

 It figures that with something brand-new that it's not all sorted out in
 Adobe-land yet.  Patience

 -Charles

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Re: CMOS vs. CCD colours?

2009-07-29 Thread Graydon
On Wed, Jul 29, 2009 at 07:50:54PM +0200, Ralf R. Radermacher scripsit:
[sky looks like bathroom tile]
 The camera is set to AWB, just like the K10D, as well. Colours space in
 both cases is Adobe RGB.

The times I've seen something like that have been the white balance
being set to tungsten in the processing software when it was an open
shade outdoor shot; switching off of tungsten to the camera white
balance setting fixed it.

'd be looking to make sure that the K7 was known to the software *and*
that the exposure setting was defaulting to automatic, so that the
camera exposure and white balance are being used, rather than some set
of values being remembered from last time.

-- Graydon

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Re: CMOS vs. CCD colours?

2009-07-29 Thread Tim Bray
2009/7/29 Ralf R. Radermacher fotor...@gmx.de:
 After using a K10D for a few years I find that the colours I'm getting
 from my new K-7 are a trifle odd, to put it mildly.

 Particularly my sky colours now look like 1950's bathroom tiles. Some
 awful cyanish cast that I have only had with the K10D in severely
 overexposed shots. Grey sky comes out with a distinct blueish cast.

I didn't think that LightRoom had support for K-7 RAW files yet.  This
sounds like exactly what happened when I tried my K20D RAWs before the
LR support was there.  Once they had it, everything worked fine.  -Tim

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Re: CMOS vs. CCD colours?

2009-07-29 Thread Bruce Walker

Ralf R. Radermacher wrote:

After using a K10D for a few years I find that the colours I'm getting
from my new K-7 are a trifle odd, to put it mildly.

Particularly my sky colours now look like 1950's bathroom tiles. Some
awful cyanish cast that I have only had with the K10D in severely
overexposed shots. Grey sky comes out with a distinct blueish cast.

I'm shooting RAW and talking about what I get to see when I open the RAW
files in Lightroom, with the same settings and exactly the same way I've
done with my K10D files before.

The camera is set to AWB, just like the K10D, as well. Colours space in
both cases is Adobe RGB.

Any suggestions?

Ralf



I'd suggest playing with camera profiles and calibration in ACR 
http://is.gd/1T4g9


I tweaked the settings for my K100Ds and got better noise performance 
and what I thought were better colours (a little less magenta, I think).


-bmw

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Re: CMOS vs. CCD colours?

2009-07-29 Thread AlunFoto
Ralf,
Do you shoot PEF?
If you do, maybe it's worth an exposure to test if DNG is any
different, just to test if the software has got the file format wrong.

Notice also that Pentax has sometimes been criticised for producing a
magenta cast in low colour temp settings, and with the K-7 there's a
menu option to turn this on or off. That may make a difference for
your nightscapes, at least.

I'm sorry I don't have the K-7 close by right now. I suspect you'll be
able to dig out the exact number of that setting before I do.

Jostein

2009/7/29 Ralf R. Radermacher fotor...@gmx.de:
 After using a K10D for a few years I find that the colours I'm getting
 from my new K-7 are a trifle odd, to put it mildly.

 Particularly my sky colours now look like 1950's bathroom tiles. Some
 awful cyanish cast that I have only had with the K10D in severely
 overexposed shots. Grey sky comes out with a distinct blueish cast.

 I'm shooting RAW and talking about what I get to see when I open the RAW
 files in Lightroom, with the same settings and exactly the same way I've
 done with my K10D files before.

 The camera is set to AWB, just like the K10D, as well. Colours space in
 both cases is Adobe RGB.

 Any suggestions?

 Ralf

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Re: CMOS vs. CCD colours?

2009-07-29 Thread Ralf R. Radermacher
AlunFoto alunf...@gmail.com wrote:

 Do you shoot PEF?

No, it's DNG in both cases and the WB in Lightroom is set to as shot.

 Notice also that Pentax has sometimes been criticised for producing a
 magenta cast in low colour temp settings, and with the K-7 there's a
 menu option to turn this on or off. That may make a difference for
 your nightscapes, at least.

My current troubles are mostly with normal sunlit skies. The lighting
situatiuons in my nightshots are usually far too complex to be corrected
by a simple colour temp adjustment. 

 I'm sorry I don't have the K-7 close by right now. I suspect you'll be
 able to dig out the exact number of that setting before I do.

My suspicions went rather in the direction of CCD vs. CMOS behaviour. I
had a K20D for two weeks, just before I got the K-7, and I had similar
troubles getting the sky to look right. 

Ralf

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Re: CMOS vs. CCD colours?

2009-07-29 Thread Paul Stenquist
PSCS4 supports K7 RAW files, and they open looking very normal and  
nice in that software's ACR converter. The k7 files generally don't  
require as much tweaking as did those from the K20D, although that's  
primarily the result of more predictable exposure.

Paul
On Jul 29, 2009, at 2:59 PM, Tim Bray wrote:


2009/7/29 Ralf R. Radermacher fotor...@gmx.de:
After using a K10D for a few years I find that the colours I'm  
getting

from my new K-7 are a trifle odd, to put it mildly.

Particularly my sky colours now look like 1950's bathroom tiles. Some
awful cyanish cast that I have only had with the K10D in severely
overexposed shots. Grey sky comes out with a distinct blueish cast.


I didn't think that LightRoom had support for K-7 RAW files yet.  This
sounds like exactly what happened when I tried my K20D RAWs before the
LR support was there.  Once they had it, everything worked fine.  -Tim

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Re: CMOS vs. CCD colours?

2009-07-29 Thread Larry Colen
What happens if you shoot a greycard and color balance in PS?


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Re: CMOS vs CCD sensor

2008-01-23 Thread Adam Maas
CMOS is lower power, lower heat and inherently noisier, but with
easier to control noise characteristics.

-Adam

On 1/23/08, Igor Roshchin [EMAIL PROTECTED] wrote:

 What are the pro's and con's of CMOS and CCD sensors?

 It is something I should know, and I even remember reading about it,
 but I don't remember.
 So, I'd appreciate if someone can either post a link to or list them
 here.

 Additionally, a specific question:
 which one should (theoretically) show less of thermally induced
 noise usually visible (at least on DS) at high ISOs?

 Thanks,

 Igor


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Re: CMOS vs CCD sensor

2008-01-23 Thread Gonz
I dont know if there is any difference between them as far as noise
per unit area of silicon for one photosite, but I'm wondering if CMOS
provides a different fill factor for the whole chip that gives it an
advantage via more silicon per photosite, if indeed CMOS has a better
fill factor.



On 1/23/08, Igor Roshchin [EMAIL PROTECTED] wrote:

 What are the pro's and con's of CMOS and CCD sensors?

 It is something I should know, and I even remember reading about it,
 but I don't remember.
 So, I'd appreciate if someone can either post a link to or list them
 here.

 Additionally, a specific question:
 which one should (theoretically) show less of thermally induced
 noise usually visible (at least on DS) at high ISOs?

 Thanks,

 Igor


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Re: CMOS vs CCD sensor

2008-01-23 Thread Mark Roberts
Gonz wrote:

I dont know if there is any difference between them as far as noise
per unit area of silicon for one photosite, but I'm wondering if CMOS
provides a different fill factor for the whole chip that gives it an
advantage via more silicon per photosite, if indeed CMOS has a better
fill factor.

Yes, CMOS permits a slightly better fill factor. CCD is, from what I've 
read, inherently less noisy, but the fill factor of CMOS may make up 
for that. It certainly seems that the cameras with the best noise 
performance are CMOS these days.

One thing that makes CMOS more attractive to camera makers is that it 
includes more of the imaging circuitry on-chip, making manufacturing 
slightly less expensive: The output signal from a CCD is analog -- the 
output from a CMOS sensor is digital. Of course, both CCD and CMOS 
sensors require some outboard circuitry, but in a business with very 
tight margins, any advantage in this area is significant.


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Re: CMOS vs CCD sensor

2008-01-23 Thread David J Brooks
Either way, i can spell them both, so i'm ok

Dave

On Jan 23, 2008 5:00 PM, Mark Roberts [EMAIL PROTECTED] wrote:
 Gonz wrote:

 I dont know if there is any difference between them as far as noise
 per unit area of silicon for one photosite, but I'm wondering if CMOS
 provides a different fill factor for the whole chip that gives it an
 advantage via more silicon per photosite, if indeed CMOS has a better
 fill factor.

 Yes, CMOS permits a slightly better fill factor. CCD is, from what I've
 read, inherently less noisy, but the fill factor of CMOS may make up
 for that. It certainly seems that the cameras with the best noise
 performance are CMOS these days.

 One thing that makes CMOS more attractive to camera makers is that it
 includes more of the imaging circuitry on-chip, making manufacturing
 slightly less expensive: The output signal from a CCD is analog -- the
 output from a CMOS sensor is digital. Of course, both CCD and CMOS
 sensors require some outboard circuitry, but in a business with very
 tight margins, any advantage in this area is significant.


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Re: CMOS

2006-10-03 Thread Cotty
On 3/10/06, Jens Bladt, discombobulated, unleashed:

See: http://www.dalsa.com/markets/ccd_vs_cmos.asp

Excellent article, thanks

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RE: CMOS

2006-10-03 Thread Jens Bladt
Godfrey wrote:
I haven't seen much evidence to say that their CCD sensor
products (Pentax, Nikon, KM aka Sony, Olympus, etc) do better or
worse than the Canon CMOS sensors do in any way that is significant
to a purchase decision.

Well, IIRC a CMOS chip is much cheaper, I believe, althoug the production
gear is very expesive.
Also the low battery consumption leaves more energy for other purposes
(features).
Regards

Jens Bladt
http://www.jensbladt.dk
+45 56 63 77 11
+45 23 43 85 77
Skype: jensbladt248

-Oprindelig meddelelse-
Fra: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] vegne af Godfrey
DiGiorgi
Sendt: 2. oktober 2006 13:04
Til: Pentax-Discuss Mail List
Emne: Re: CMOS


In general, the differences between CCD and CMOS sensors today are
more important to the hardware/manufacturing process then any
benefits of one type over the other are to the photographer. How a
specific design is implemented and built into a camera affects the
photographer much more than which type of sensor it is.

Canon's made a huge investment into CMOS manufacturing and it is
working well for them. Sony produces sensors with both technologies
and I haven't seen much evidence to say that their CCD sensor
products (Pentax, Nikon, KM aka Sony, Olympus, etc) do better or
worse than the Canon CMOS sensors do in any way that is significant
to a purchase decision.

I judge the cameras I buy based on the total package, not specifics
of component implementation.

Godfrey

On Oct 2, 2006, at 12:25 AM, Shel Belinkoff wrote:

 Is CMOS supposedly better than what we have now, and, if so, in what
 way(s).  If it is better, then why aren't other camera
 manufacturers using
 such sensors?

 I believe I read somewhere, that Pentax is planning to take up
 pruduction of CMOS image sensors. Does this mean future
 genrations of Pentax cameras will have CMOS? Like Canons!


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Re: CMOS

2006-10-03 Thread Kenneth Waller
A great shot with an unusual perspective.
Only wish it had better light.

Kenneth Waller

- Original Message - 
From: Jens Bladt [EMAIL PROTECTED]
Subject: RE: CMOS


 Godfrey wrote:
 I haven't seen much evidence to say that their CCD sensor
 products (Pentax, Nikon, KM aka Sony, Olympus, etc) do better or
 worse than the Canon CMOS sensors do in any way that is significant
 to a purchase decision.

 Well, IIRC a CMOS chip is much cheaper, I believe, althoug the production
 gear is very expesive.
 Also the low battery consumption leaves more energy for other purposes
 (features).
 Regards

 Jens Bladt
 http://www.jensbladt.dk
 +45 56 63 77 11
 +45 23 43 85 77
 Skype: jensbladt248

 -Oprindelig meddelelse-
 Fra: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] vegne af 
 Godfrey
 DiGiorgi
 Sendt: 2. oktober 2006 13:04
 Til: Pentax-Discuss Mail List
 Emne: Re: CMOS


 In general, the differences between CCD and CMOS sensors today are
 more important to the hardware/manufacturing process then any
 benefits of one type over the other are to the photographer. How a
 specific design is implemented and built into a camera affects the
 photographer much more than which type of sensor it is.

 Canon's made a huge investment into CMOS manufacturing and it is
 working well for them. Sony produces sensors with both technologies
 and I haven't seen much evidence to say that their CCD sensor
 products (Pentax, Nikon, KM aka Sony, Olympus, etc) do better or
 worse than the Canon CMOS sensors do in any way that is significant
 to a purchase decision.

 I judge the cameras I buy based on the total package, not specifics
 of component implementation.

 Godfrey

 On Oct 2, 2006, at 12:25 AM, Shel Belinkoff wrote:

 Is CMOS supposedly better than what we have now, and, if so, in what
 way(s).  If it is better, then why aren't other camera
 manufacturers using
 such sensors?

 I believe I read somewhere, that Pentax is planning to take up
 pruduction of CMOS image sensors. Does this mean future
 genrations of Pentax cameras will have CMOS? Like Canons!


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Re: CMOS

2006-10-02 Thread Christian
Douglas Newman wrote:
 
 Actually, it's the opposite. CMOS use much less power
 than CCD but they have higher noise levels.

ok

 
 Canon CMOS have very low noise levels because of a
 proprietary noise elimination circuit that is
 patented by Canon. This type of technology only works
 with CMOS (because of the way the data gets off the
 sensor in a CMOS as opposed to CCD) but anyhow it is
 proprietary, patented technology that nobody else can
 touch.

ok

 
 the only other large-sensor CMOS cameras
 are the Nikon D2X/D2Xs and the Sony DSC-R1. Both have
 quite high noise levels given the size of their
 sensors. 

I think this is a case of pixel density.  The Nikon D2X is 12MP on an 
APS sensor and the Sony is 10MP on a smaller-than-APS sensor.  And 
actually I have not heard of poor noise performance with the D2X(s), on 
the contrary, I've heard people praise it.

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Re: CMOS

2006-10-02 Thread Kostas Kavoussanakis
On Sun, 1 Oct 2006, Shel Belinkoff wrote:

 So, how well does Canon do at higher ISO setting?  Do they equal or exceed
 what we've seen thus far from Pentax?

Not sure you can extract viable conclusions about CMOS this way, Shel, 
in the sense that the software plays a great part in the equation. 
Potentially manufacturers that use the same chip will come up with 
products that fare differently when it comes to noise.

So when Christian comes back and says that his Canon is much better 
than the Pentax, it may just mean that the Canon software on his model 
is better than that of his Pentax model.

And sw is only one factor.

I would look at performance from specific models as opposed to 
specific technologies. And there is the other can of worms; does the 
operator know what they are doing.

Kostas

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Re: CMOS

2006-10-02 Thread Cotty
On 1/10/06, Christian, discombobulated, unleashed:

The lack of noise at high sensitivity is something people claim as an 
advantage for CMOS.  Supposedly a drawback is that they suck more power.

Just the opposite dear boy. They use less power - that is why they are
attractive.

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Re: CMOS

2006-10-02 Thread Christian
Cotty wrote:
 On 1/10/06, Christian, discombobulated, unleashed:
 
 
The lack of noise at high sensitivity is something people claim as an 
advantage for CMOS.  Supposedly a drawback is that they suck more power.
 
 
 Just the opposite dear boy. They use less power - that is why they are
 attractive.
 

OOPS!

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Re: CMOS

2006-10-02 Thread Godfrey DiGiorgi
It's more a matter of exposure evaluation than image processing,  
Shel. You need to stuff the highlight areas where you want detail up  
as close to saturation as you can get without hitting the saturation  
level, which often seems like overexposure to a film camera shooter,  
and then adjust the RAW conversion curves appropriately. That gives  
you the most data to work with in shadow regions and the least noise.

At high ISO settings, dynamic range is reduced so it becomes more  
essential to get enough exposure in or bottom-end values are swamped  
with noise.

On Oct 2, 2006, at 4:18 AM, Shel Belinkoff wrote:

 You've hit upon one of the things I don't like about the DS and  
 that is
 noise in the shadows unless you bring the exposure up a bit.  I  
 sometimes
 like to shoot scenes in a very low key manner, and the Pentax -  
 perhaps all
 DSLR cameras - don't make that easy to do.  Perhaps I've not got my  
 digital
 processing act together.

 Shel



 [Original Message]
 From: Paul Stenquist

 I think if you shoot at the meter reading with the D, it can be noisy
 at 800 or above. If you plus a half stop of exposure comp, the D is
 extremely noise free.



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Re: CMOS

2006-10-02 Thread Godfrey DiGiorgi
In general, the differences between CCD and CMOS sensors today are  
more important to the hardware/manufacturing process then any  
benefits of one type over the other are to the photographer. How a  
specific design is implemented and built into a camera affects the  
photographer much more than which type of sensor it is.

Canon's made a huge investment into CMOS manufacturing and it is  
working well for them. Sony produces sensors with both technologies  
and I haven't seen much evidence to say that their CCD sensor  
products (Pentax, Nikon, KM aka Sony, Olympus, etc) do better or  
worse than the Canon CMOS sensors do in any way that is significant  
to a purchase decision.

I judge the cameras I buy based on the total package, not specifics  
of component implementation.

Godfrey

On Oct 2, 2006, at 12:25 AM, Shel Belinkoff wrote:

 Is CMOS supposedly better than what we have now, and, if so, in what
 way(s).  If it is better, then why aren't other camera  
 manufacturers using
 such sensors?

 I believe I read somewhere, that Pentax is planning to take up
 pruduction of CMOS image sensors. Does this mean future
 genrations of Pentax cameras will have CMOS? Like Canons!


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Re: CMOS

2006-10-02 Thread Shel Belinkoff
I understand that part, and that's what I've been doing (I shoot a lot @
+.3,+.7, even +1, and sometimes, depending on the light and the scene,
+1.3), and getting good results.  But ... when I want a low key shot, with
lots of dark areas in a photo, that's where my results suffer.  Noise in
the shadows is a constant problem for me, yet I don't see it as much in the
work of other people.  They seem to get cleaner shadows with better Zone
1-2-3 separation.

I sent you some examples of this a month or so back, but hadn't heard back
from you - figured you were busy with other things (which you were) or
maybe didn't get the message, then I got overwhelmed with some things here
...

I want to be able to get better low-key results with less noise
(quantization maybe?) in the darker areas of my photos on a more consistent
basis.

Shel



 [Original Message]
 From: Godfrey DiGiorgi 

 It's more a matter of exposure evaluation than image processing,  
 Shel. You need to stuff the highlight areas where you want detail up  
 as close to saturation as you can get without hitting the saturation  
 level, which often seems like overexposure to a film camera shooter,  
 and then adjust the RAW conversion curves appropriately. That gives  
 you the most data to work with in shadow regions and the least noise.

 At high ISO settings, dynamic range is reduced so it becomes more  
 essential to get enough exposure in or bottom-end values are swamped  
 with noise.



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Re: CMOS

2006-10-02 Thread pnstenquist
I find that if I want low-key with lots of shadow, I get better results by 
pulling down the shadows in post processing, generally with curves adjustments. 
Exposing for heavy blacks always creates noise, particularly at high ISO.
Paul
 -- Original message --
From: Shel Belinkoff [EMAIL PROTECTED]
 I understand that part, and that's what I've been doing (I shoot a lot @
 +.3,+.7, even +1, and sometimes, depending on the light and the scene,
 +1.3), and getting good results.  But ... when I want a low key shot, with
 lots of dark areas in a photo, that's where my results suffer.  Noise in
 the shadows is a constant problem for me, yet I don't see it as much in the
 work of other people.  They seem to get cleaner shadows with better Zone
 1-2-3 separation.
 
 I sent you some examples of this a month or so back, but hadn't heard back
 from you - figured you were busy with other things (which you were) or
 maybe didn't get the message, then I got overwhelmed with some things here
 ...
 
 I want to be able to get better low-key results with less noise
 (quantization maybe?) in the darker areas of my photos on a more consistent
 basis.
 
 Shel
 
 
 
  [Original Message]
  From: Godfrey DiGiorgi 
 
  It's more a matter of exposure evaluation than image processing,  
  Shel. You need to stuff the highlight areas where you want detail up  
  as close to saturation as you can get without hitting the saturation  
  level, which often seems like overexposure to a film camera shooter,  
  and then adjust the RAW conversion curves appropriately. That gives  
  you the most data to work with in shadow regions and the least noise.
 
  At high ISO settings, dynamic range is reduced so it becomes more  
  essential to get enough exposure in or bottom-end values are swamped  
  with noise.
 
 
 
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Re: CMOS

2006-10-02 Thread Cotty
On 2/10/06, Godfrey DiGiorgi, discombobulated, unleashed:

I judge the cameras I buy based on the total package, not specifics  
of component implementation.

Wise words.

-- 


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  Cotty


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Re: CMOS

2006-10-02 Thread Godfrey DiGiorgi
Hmm. I don't recall receiving any files, but it *has* been really  
pretty busy lately and I might have missed them.

Similar to Paul's effort, I find that for some images you just need  
to pull the shadows down with a Levels/Curves adjustment layer to  
push the noise into solid black. Here's an example ... I layered a  
Levels correction and a Curves correction on the left side image, you  
can compare it to the right hand one:

   http://homepage.mac.com/godders/IMGP3536.jpg

Sometimes you can do the same with a simple S-curve adjustment using  
the Curves tool.

Godfrey

On Oct 2, 2006, at 3:12 PM, Shel Belinkoff wrote:

 I understand that part, and that's what I've been doing (I shoot a  
 lot @
 +.3,+.7, even +1, and sometimes, depending on the light and the scene,
 +1.3), and getting good results.  But ... when I want a low key  
 shot, with
 lots of dark areas in a photo, that's where my results suffer.   
 Noise in
 the shadows is a constant problem for me, yet I don't see it as  
 much in the
 work of other people.  They seem to get cleaner shadows with better  
 Zone
 1-2-3 separation.

 I sent you some examples of this a month or so back, but hadn't  
 heard back
 from you - figured you were busy with other things (which you were) or
 maybe didn't get the message, then I got overwhelmed with some  
 things here
 ...

 I want to be able to get better low-key results with less noise
 (quantization maybe?) in the darker areas of my photos on a more  
 consistent
 basis.

 Shel



 [Original Message]
 From: Godfrey DiGiorgi

 It's more a matter of exposure evaluation than image processing,
 Shel. You need to stuff the highlight areas where you want detail up
 as close to saturation as you can get without hitting the saturation
 level, which often seems like overexposure to a film camera shooter,
 and then adjust the RAW conversion curves appropriately. That gives
 you the most data to work with in shadow regions and the least noise.

 At high ISO settings, dynamic range is reduced so it becomes more
 essential to get enough exposure in or bottom-end values are swamped
 with noise.



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Re: CMOS

2006-10-02 Thread Shel Belinkoff
Well, I do that when it seems appropriate, but then subtle detail is lost. 
Honestly, I'm quite frustrated with this aspect of the camera/processing,
although I'm sure it's as much my techniques as it is the dynamics of
digital.  Juan seems to get what I want in a lot of his work, and I've seen
it in yours both on the web and in person.  However, the example you posted
clearly shows what I am trying to avoid.  There's no detail in the darkest
area of the image, and the area outlined in yellow shows a lot of noise
compared to the clean black in the similar area of the other shoe.  I'm
looking for clean detail in zone 2, 3,and 4 and don't want to mask the
noise with full black.

http://home.earthlink.net/~my-pics/IMGP3536b.jpg

Shel



 [Original Message]
 From: Godfrey DiGiorgi 

 Hmm. I don't recall receiving any files, but it *has* been really  
 pretty busy lately and I might have missed them.

 Similar to Paul's effort, I find that for some images you just need  
 to pull the shadows down with a Levels/Curves adjustment layer to  
 push the noise into solid black. Here's an example ... I layered a  
 Levels correction and a Curves correction on the left side image, you  
 can compare it to the right hand one:

http://homepage.mac.com/godders/IMGP3536.jpg

 Sometimes you can do the same with a simple S-curve adjustment using  
 the Curves tool.



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Re: CMOS

2006-10-02 Thread Godfrey DiGiorgi
Shel,

The shoe on the right is the original, the show on the left has had  
the corrections done. There is no real detail in that area, it's all  
Zone 1, but the noise makes you believe that there is detail there.  
To obtain more detail on the inner sole of the shoe, I should have  
given it 1 to 2 stops more exposure, then dealt with the highlight  
values that would have been dangerously close to saturation.

It's always a trade off. The film or sensor only has so much dynamic  
range to work with. The inner sole of the shoe has no significant or  
interesting detail to me, so I let it go black so as not to burn the  
Zone IX details which I wanted. (This is only a 1:1 section of the  
full frame!)

Godfrey

On Oct 2, 2006, at 9:18 PM, Shel Belinkoff wrote:

 Well, I do that when it seems appropriate, but then subtle detail  
 is lost.
 Honestly, I'm quite frustrated with this aspect of the camera/ 
 processing,
 although I'm sure it's as much my techniques as it is the dynamics of
 digital.  Juan seems to get what I want in a lot of his work, and  
 I've seen
 it in yours both on the web and in person.  However, the example  
 you posted
 clearly shows what I am trying to avoid.  There's no detail in the  
 darkest
 area of the image, and the area outlined in yellow shows a lot of  
 noise
 compared to the clean black in the similar area of the other shoe.   
 I'm
 looking for clean detail in zone 2, 3,and 4 and don't want to mask the
 noise with full black.

 http://home.earthlink.net/~my-pics/IMGP3536b.jpg

 Shel



 [Original Message]
 From: Godfrey DiGiorgi

 Hmm. I don't recall receiving any files, but it *has* been really
 pretty busy lately and I might have missed them.

 Similar to Paul's effort, I find that for some images you just need
 to pull the shadows down with a Levels/Curves adjustment layer to
 push the noise into solid black. Here's an example ... I layered a
 Levels correction and a Curves correction on the left side image, you
 can compare it to the right hand one:

http://homepage.mac.com/godders/IMGP3536.jpg

 Sometimes you can do the same with a simple S-curve adjustment using
 the Curves tool.



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RE: CMOS

2006-10-02 Thread Jens Bladt
It's cheaper to produce - once you have invested in the manufacturing gear,
which is rather expensive - IIRC.
In use the battery comsumption, is relatively low. Canon has been very
successfful making their own CMOS chips.
See: http://www.dalsa.com/markets/ccd_vs_cmos.asp

Regards
Jens Bladt
http://www.jensbladt.dk
+45 56 63 77 11
+45 23 43 85 77
Skype: jensbladt248

-Oprindelig meddelelse-
Fra: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] vegne af Shel
Belinkoff
Sendt: 2. oktober 2006 01:25
Til: Pentax-Discuss Mail List
Emne: RE: CMOS


Is CMOS supposedly better than what we have now, and, if so, in what
way(s).  If it is better, then why aren't other camera manufacturers using
such sensors?

Shel



 [Original Message]
 From: Jens Bladt

 I believe I read somewhere, that Pentax is planning to take up
 pruduction of CMOS image sensors. Does this mean future
 genrations of Pentax cameras will have CMOS? Like Canons!



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Re: CMOS

2006-10-01 Thread Thibouille
The rep I already talked about from Photokina confirmed Pentax does
want sensors from themselves. That has been reported several months
ago already.

Now would these be Pentax sensors manufactured by Samsung or be
Samsung sensors used by Pentax, who knows ?

But yes they are heading that way it seems.


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RE: CMOS

2006-10-01 Thread Shel Belinkoff
Is CMOS supposedly better than what we have now, and, if so, in what
way(s).  If it is better, then why aren't other camera manufacturers using
such sensors?

Shel



 [Original Message]
 From: Jens Bladt 

 I believe I read somewhere, that Pentax is planning to take up 
 pruduction of CMOS image sensors. Does this mean future 
 genrations of Pentax cameras will have CMOS? Like Canons!



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Re: CMOS

2006-10-01 Thread Christian
Shel Belinkoff wrote:
 Is CMOS supposedly better than what we have now, and, if so, in what
 way(s).  If it is better, then why aren't other camera manufacturers using
 such sensors?

The lack of noise at high sensitivity is something people claim as an 
advantage for CMOS.  Supposedly a drawback is that they suck more power.

Any truth in there?  Maybe, but I bet you get an argument on both.

-- 

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Re: CMOS

2006-10-01 Thread Shel Belinkoff
So, how well does Canon do at higher ISO setting?  Do they equal or exceed
what we've seen thus far from Pentax?

Shel



 [Original Message]
 From: Christian 

 Shel Belinkoff wrote:
  Is CMOS supposedly better than what 
  we have now, and, if so, in what
  way(s).  If it is better, then why aren't 
  other camera manufacturers using
  such sensors?

 The lack of noise at high sensitivity is something people claim as an 
 advantage for CMOS.  Supposedly a drawback is that they suck more power.

 Any truth in there?  Maybe, but I bet you get an argument on both.



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Re: CMOS

2006-10-01 Thread P. J. Alling
It's interesting but you get both views from various reviews.  I've seen 
reviews that will flat out say that the Pentax D series cameras have 
lower noise characteristics than Canons and others that talk about how 
noisy Pentax DSLR are at high ISO.  The only Canons I've seen high ISO 
output from were D20s and my brother's digital Rebel, (don't even ask).  
The D20 output is extremely clean but don't seem noticably cleaner than 
my D and DS at any particular ISO.  I don't think my brother has 
actually taken his DigiReb, beyond ISO 100 and uses the built in flash 
for most inside shots, and to think he never even had a flash for his 
Minolta SRT 101.

Shel Belinkoff wrote:

So, how well does Canon do at higher ISO setting?  Do they equal or exceed
what we've seen thus far from Pentax?

Shel



  

[Original Message]
From: Christian 



  

Shel Belinkoff wrote:


Is CMOS supposedly better than what 
we have now, and, if so, in what
way(s).  If it is better, then why aren't 
other camera manufacturers using
such sensors?
  

The lack of noise at high sensitivity is something people claim as an 
advantage for CMOS.  Supposedly a drawback is that they suck more power.

Any truth in there?  Maybe, but I bet you get an argument on both.





  



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Re: CMOS

2006-10-01 Thread Christian
Shel Belinkoff wrote:
 So, how well does Canon do at higher ISO setting?  Do they equal or exceed
 what we've seen thus far from Pentax?

Ok, I had a *ist D, 6MP CCD , and while it performed well at high ISO 
(800-3200), my Canon 20D, 8MP CMOS, blows it away (the sensors are about 
the same size).  I know I'll get flamed for that, but I did have the 
*ist D for 2 years and the Canon now for a year and a half and I have 
countless examples in the archives.

As for battery power, with both cameras I could easily get 1000 shots 
using the battery grips.

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Re: CMOS

2006-10-01 Thread Paul Stenquist
I think if you shoot at the meter reading with the D, it can be noisy  
at 800 or above. If you plus a half stop of exposure comp, the D is  
extremely noise free. As I said before, it's not as noisy as my co- 
worker's 20D. But maybe she's underexposing. Exposure seems to be the  
key, at least with the Pentax.
Paul
On Oct 1, 2006, at 9:00 PM, Christian wrote:

 Shel Belinkoff wrote:
 So, how well does Canon do at higher ISO setting?  Do they equal  
 or exceed
 what we've seen thus far from Pentax?

 Ok, I had a *ist D, 6MP CCD , and while it performed well at high ISO
 (800-3200), my Canon 20D, 8MP CMOS, blows it away (the sensors are  
 about
 the same size).  I know I'll get flamed for that, but I did have the
 *ist D for 2 years and the Canon now for a year and a half and I have
 countless examples in the archives.

 As for battery power, with both cameras I could easily get 1000 shots
 using the battery grips.

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 http://photography.skofteland.net

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Re: CMOS

2006-10-01 Thread Douglas Newman
--- Christian [EMAIL PROTECTED]
 The lack of noise at high sensitivity is something
people claim as an advantage for CMOS.  Supposedly a
drawback is that they suck more power. 

Actually, it's the opposite. CMOS use much less power
than CCD but they have higher noise levels.

Canon CMOS have very low noise levels because of a
proprietary noise elimination circuit that is
patented by Canon. This type of technology only works
with CMOS (because of the way the data gets off the
sensor in a CMOS as opposed to CCD) but anyhow it is
proprietary, patented technology that nobody else can
touch.

Aside from the Canons (all Canon D-SLRs but the D2000,
D6000 and 1D) the only other large-sensor CMOS cameras
are the Nikon D2X/D2Xs and the Sony DSC-R1. Both have
quite high noise levels given the size of their
sensors. 

New Doug

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Re: CMOS

2006-10-01 Thread Shel Belinkoff
You've hit upon one of the things I don't like about the DS and that is
noise in the shadows unless you bring the exposure up a bit.  I sometimes
like to shoot scenes in a very low key manner, and the Pentax - perhaps all
DSLR cameras - don't make that easy to do.  Perhaps I've not got my digital
processing act together.

Shel



 [Original Message]
 From: Paul Stenquist 

 I think if you shoot at the meter reading with the D, it can be noisy  
 at 800 or above. If you plus a half stop of exposure comp, the D is  
 extremely noise free. 



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Re: CMOS

2006-10-01 Thread Paul Stenquist
Yes, low key can be tough. However, if the highlights arent'  
completely blown, it's easy to bring them down. Every shot is  
different. Digital has it's limits, but with good post processing,  
they're gneraly less restricting than film.
Paul
On Oct 1, 2006, at 11:18 PM, Shel Belinkoff wrote:

 You've hit upon one of the things I don't like about the DS and  
 that is
 noise in the shadows unless you bring the exposure up a bit.  I  
 sometimes
 like to shoot scenes in a very low key manner, and the Pentax -  
 perhaps all
 DSLR cameras - don't make that easy to do.  Perhaps I've not got my  
 digital
 processing act together.

 Shel



 [Original Message]
 From: Paul Stenquist

 I think if you shoot at the meter reading with the D, it can be noisy
 at 800 or above. If you plus a half stop of exposure comp, the D is
 extremely noise free.



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Re: Cmos was: Hypothetical Question

2002-12-19 Thread Cotty
So is the CMOS gathering data in a similar fashion as
a CCD,but with out the CCD?One BIG digital problem with the
CCD is dust on the filter.Is this now eliminated or greatly reduced
with CMOS.
I know i will eventually have to or want to upo grade from
the 2.74 megapixel to a higher unit.Just not sure what is 
better or more stable,CMOS or CCD.
Cotty, i beleive you mentioned shooting soccer was not a problem
with the Canon correct,and shutter lag was up there with
SLR types.

Correct.

I believe the Pentax will have a CMOS sensor. Costs will simply not allow 
it to be equipped with a CCD.

Cheers.

Cot


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http://www.macads.co.uk/

Oh, swipe me! He paints with light!
http://www.macads.co.uk/snaps/





RE: Cmos was: Hypothetical Question

2002-12-19 Thread ryan
No, CMOS is cheaper- it's the more common process these days.

R


Quoting Glen O'Neal [EMAIL PROTECTED]:

 Cotty,
 
 Not sure I understand. Isn't the CMOS more expensive?
 
 Glen
 
 -Original Message-
 From: Cotty [mailto:[EMAIL PROTECTED]]
 Sent: Thursday, December 19, 2002 3:18 PM
 To: Pentax List
 Subject: Re: Cmos was: Hypothetical Question
 
 
 So is the CMOS gathering data in a similar fashion as
 a CCD,but with out the CCD?One BIG digital problem with the
 CCD is dust on the filter.Is this now eliminated or greatly reduced
 with CMOS.
 I know i will eventually have to or want to upo grade from
 the 2.74 megapixel to a higher unit.Just not sure what is 
 better or more stable,CMOS or CCD.
 Cotty, i beleive you mentioned shooting soccer was not a problem
 with the Canon correct,and shutter lag was up there with
 SLR types.
 
 Correct.
 
 I believe the Pentax will have a CMOS sensor. Costs will simply not
 allow 
 it to be equipped with a CCD.
 
 Cheers.
 
 Cot
 
 
 Free UK Macintosh Classified Ads at
 http://www.macads.co.uk/
 
 Oh, swipe me! He paints with light!
 http://www.macads.co.uk/snaps/