I suggested 16 bits just gray scale. color would of course be more than
16 bits (48 bits?).
JCO
-Original Message-
From: David Madsen [mailto:[EMAIL PROTECTED]
Sent: Wednesday, October 27, 2004 11:46 PM
To: [EMAIL PROTECTED]
Subject: RE: state of the art 35mm DSLR
I have heard that
On Wed, 27 Oct 2004, Tom C wrote:
> >A change from one shade to the next, say from level #240 to #241 is very
> >small in percent, but if you go from shade #1 to #2 it's a 100 percent
> >increase.
>
> Is this true? That a 256-grade grayscale is non-linear? I thought a 100%
> change would be goi
On Wed, 27 Oct 2004, Mark Roberts wrote:
> >A change from one shade to the next, say from level #240 to #241 is
> >very small in percent, but if you go from shade #1 to #2 it's a 100
> >percent increase.
>
> Only if you're using a linear scale.
Yes, the exact values I quoted are based on a lin
I have heard that the eye/brain sees up to 32 bit, which 12 bits per channel
surpasses.
-Original Message-
From: J. C. O'Connell [mailto:[EMAIL PROTECTED]
Sent: Wednesday, October 27, 2004 5:19 PM
To: [EMAIL PROTECTED]
Subject: RE: state of the art 35mm DSLR
I said I thought vi
I just read it in a freshly delivered photography magazine,
not online. That explains the delay
JCO
-Original Message-
From: Herb Chong [mailto:[EMAIL PROTECTED]
Sent: Wednesday, October 27, 2004 9:55 PM
To: [EMAIL PROTECTED]
Subject: Re: state of the art 35mm DSLR
just read? this
just read? this is like almost a month old.
Herb
- Original Message -
From: "William Robb" <[EMAIL PROTECTED]>
To: <[EMAIL PROTECTED]>
Sent: Wednesday, October 27, 2004 11:25 AM
Subject: Re: state of the art 35mm DSLR
> - Original Message -
ences anywhere near that fine.
Id like to read more on this, anyone have any good
URLS on the subject?
JCO
-Original Message-
From: William Robb [mailto:[EMAIL PROTECTED]
Sent: Wednesday, October 27, 2004 8:24 PM
To: [EMAIL PROTECTED]
Subject: Re: state of the art 35mm DSLR
- Ori
TED]
To: <[EMAIL PROTECTED]>
Subject: Re: state of the art 35mm DSLR
Date: Wed, 27 Oct 2004 18:20:42 -0600
- Original Message - From: "Mark Roberts"
Subject: Re: state of the art 35mm DSLR
Assume 8 bit gray scale. That means 256 distinct shades of gray from
0 (full black) to
"William Robb" <[EMAIL PROTECTED]> wrote:
>From: "Mark Roberts"
>>>
>>>Assume 8 bit gray scale. That means 256 distinct shades of gray
>>>from
>>>0 (full black) to 255 (full white).
>>>
>>>A change from one shade to the next, say from level #240 to #241 is
>>>very small in percent, but if you go
- Original Message -
From: "J. C. O'Connell"
Subject: RE: state of the art 35mm DSLR
Don't forget there are limits to how many shades of
gray the human eye can distinguish, how many shades
that is I don't know but I have a hunch it is less
than 2^16 shades (16 b
- Original Message -
From: "Mark Roberts"
Subject: Re: state of the art 35mm DSLR
Assume 8 bit gray scale. That means 256 distinct shades of gray
from
0 (full black) to 255 (full white).
A change from one shade to the next, say from level #240 to #241 is
very small in perce
On Wed, 27 Oct 2004 19:25:43 -0400, J. C. O'Connell wrote:
> Wow this is getting nit picky huh?
;-)
TTYL, DougF KG4LMZ
On 27 Oct 2004 at 19:18, J. C. O'Connell wrote:
> I said I thought visible distinguishable shades was less than 16 bit
> (64K shades).
> That means I think 16 bits is sufficient, it doesn't mean I think 8 bits
> is. Image editng is another issue altogether because of
> the precision of the iterate
:[EMAIL PROTECTED]
Sent: Wednesday, October 27, 2004 7:02 PM
To: [EMAIL PROTECTED]
Subject: RE: state of the art 35mm DSLR
On Wed, 27 Oct 2004 18:48:30 -0400, J. C. O'Connell wrote:
> Don't forget there are limits to how many shades of
> gray the human eye can distinguish, how ma
xtent.
JCO
-Original Message-
From: Rob Studdert [mailto:[EMAIL PROTECTED]
Sent: Wednesday, October 27, 2004 7:02 PM
To: [EMAIL PROTECTED]
Subject: RE: state of the art 35mm DSLR
On 27 Oct 2004 at 18:48, J. C. O'Connell wrote:
> Don't forget there are limits to how many sh
On 27 Oct 2004 at 18:48, J. C. O'Connell wrote:
> Don't forget there are limits to how many shades of
> gray the human eye can distinguish, how many shades
> that is I don't know but I have a hunch it is less
> than 2^16 shades (16 bit grayscale)which is 64K shades.
Well even if humans are incapa
On Wed, 27 Oct 2004 18:48:30 -0400, J. C. O'Connell wrote:
> Don't forget there are limits to how many shades of
> gray the human eye can distinguish, how many shades
> that is I don't know but I have a hunch it is less
> than 2^16 shades (16 bit grayscale)which is 64K shades.
Sure. And if the po
On 27 Oct 2004 at 18:27, Mark Roberts wrote:
> They are linear response devices, but that doesn't mean they have to use
> linear quantization. As far as I know, all film scanners use logarithmic
> quantization. (Though my Minolta and Kodak scanners both have an
> *option* for linear quantization,
TED]
Sent: Wednesday, October 27, 2004 6:36 PM
To: [EMAIL PROTECTED]
Subject: Re: state of the art 35mm DSLR
On Wed, 27 Oct 2004 17:29:21 -0400, Mark Roberts wrote:
> Anders Hultman <[EMAIL PROTECTED]> wrote:
>
> >Shel Belinkoff:
> >
> >>What are "quantiza
On 27 Oct 2004 at 9:48, Shel Belinkoff wrote:
> So, what might the new Hasselblad med format @ 22mp and 16bit color, and
> which, I understand, has a price of $7,000, be?
Not appealing to Canon users?
Rob Studdert
HURSTVILLE AUSTRALIA
Tel +61-2-9554-4110
UTC(GMT) +10 Hours
[EMAIL PROTECTED]
h
On Wed, 27 Oct 2004 17:29:21 -0400, Mark Roberts wrote:
> Anders Hultman <[EMAIL PROTECTED]> wrote:
>
> >Shel Belinkoff:
> >
> >>What are "quantization effects?"
> >
> >The effect that comes from that you only have distinct levels to play
> >with, and that subtle changes have to be either on or
"John Francis" <[EMAIL PROTECTED]> wrote:
>Mark Roberts mused:
>>
>> Anders Hultman <[EMAIL PROTECTED]> wrote:
>>
>> >Shel Belinkoff:
>> >
>> >>What are "quantization effects?"
>> >
>> >The effect that comes from that you only have distinct levels to play
>> >with, and that subtle changes have
Mark Roberts mused:
>
> Anders Hultman <[EMAIL PROTECTED]> wrote:
>
> >Shel Belinkoff:
> >
> >>What are "quantization effects?"
> >
> >The effect that comes from that you only have distinct levels to play
> >with, and that subtle changes have to be either on or off.
> >
> >Assume 8 bit gray scal
Is this true? That a 256-grade grayscale is non-linear? I thought a 100%
change would be going from 0 to 255.
Tom C.
From: Anders Hultman <[EMAIL PROTECTED]>
Reply-To: [EMAIL PROTECTED]
To: [EMAIL PROTECTED]
Subject: Re: state of the art 35mm DSLR
Date: Wed, 27 Oct 2004 23:06:24 +020
Anders Hultman <[EMAIL PROTECTED]> wrote:
>Shel Belinkoff:
>
>>What are "quantization effects?"
>
>The effect that comes from that you only have distinct levels to play
>with, and that subtle changes have to be either on or off.
>
>Assume 8 bit gray scale. That means 256 distinct shades of gray f
Shel Belinkoff:
What are "quantization effects?"
The effect that comes from that you only have distinct levels to play
with, and that subtle changes have to be either on or off.
Assume 8 bit gray scale. That means 256 distinct shades of gray from
0 (full black) to 255 (full white).
A change fro
What are "quantization effects?"
Once I understand that term (and I think I do, but I need to be sure), then
all else will probably fall into place.
Aside from that, I always have a hard time pulling subtle details from
shadows in B&W negatives, and it really pisses me off. Recently I've been
th
I thought you'd know :-)
B&W is *all* about light and shade. There's a great deal of
post-exposure manipulation done to create the perfect print;
either in the development stage, or in printing. Digital
doesn't give you any options at development time - everything
is done by manipulating the re
'Politics is supposed to be the second oldest profession. I have come to realize that
it bears a very close resemblance to the first.' Ronald Reagan
--- original start ---
From: Dario Bonazza
Subject: Re: state of th
Shel Belinkoff wrote:
> It's a 645,
I mean equivalent to 6x9 film.
> but the point of my question was, if the Canon @ 16mp is
> considered to be med format, what would the 'blad be? Is it not med
> format? Or would it be large format?
Since neither medium fomat nor large format is a format (t
Why is that? (esp for B&W)
being a B&W shooter, that sort of thing really is of interest.
Shel
> [Original Message]
> From: John Francis <[EMAIL PROTECTED]>
> There are still a few situations where 12 bits
> isn't enough (especially if you want B&W images).
onazza <[EMAIL PROTECTED]>
> To: <[EMAIL PROTECTED]>
> Date: 10/27/2004 10:14:57 AM
> Subject: Re: state of the art 35mm DSLR
>
> 6x9?
>
> Dario
>
> - Original Message -
> From: "Shel Belinkoff" <[EMAIL PROTECTED]>
> To: <[EMAIL PR
William Robb mused:
>
>
> - Original Message -
> From: "J. C. O'Connell"
> Subject: state of the art 35mm DSLR
>
>
> >I just read/heard in photo magazine
> > that Canon is about to release a
> > new FF DSLR with 16.6 Mp! Wow!
&
Dario Bonazza wrote:
> Keith Whaley wrote:
>
>>J. C. O'Connell wrote:
>>
>>>I just read/heard in photo magazine
>>>that Canon is about to release a
>>>new FF DSLR with 16.6 Mp! Wow!
>>>Looks like the 13 Mp models were
>>>not king of the hill for very long.
>>>Street price will be around $7K
>>>
>>
APS lenses
(two Nikkors, I'm afraid) reach 150 lpm.
Dario
- Original Message -
From: "Shel Belinkoff" <[EMAIL PROTECTED]>
To: <[EMAIL PROTECTED]>
Sent: Wednesday, October 27, 2004 6:48 PM
Subject: Re: state of the art 35mm DSLR
> So, what might the new Hass
6x9?
Dario
- Original Message -
From: "Shel Belinkoff" <[EMAIL PROTECTED]>
To: <[EMAIL PROTECTED]>
Sent: Wednesday, October 27, 2004 6:48 PM
Subject: Re: state of the art 35mm DSLR
> So, what might the new Hasselblad med format @ 22mp and 16bit color, and
>
So, what might the new Hasselblad med format @ 22mp and 16bit color, and
which, I understand, has a price of $7,000, be?
Shel
> [Original Message]
> From: Dario Bonazza <[EMAIL PROTECTED]>
> Yes, I agree, but don't forget that 24x36 DLSR's are the digital medium
> format, aimed to that same p
major companies...
keith whaley
-Original Message-
From: Keith Whaley [mailto:[EMAIL PROTECTED]
Sent: Wednesday, October 27, 2004 11:35 AM
To: [EMAIL PROTECTED]
Subject: Re: state of the art 35mm DSLR
J. C. O'Connell wrote:
I just read/heard in photo magazine
that Canon is about to r
EMAIL PROTECTED]
Sent: Wednesday, October 27, 2004 11:35 AM
To: [EMAIL PROTECTED]
Subject: Re: state of the art 35mm DSLR
J. C. O'Connell wrote:
> I just read/heard in photo magazine
> that Canon is about to release a
> new FF DSLR with 16.6 Mp! Wow!
>
> Looks like the 13 Mp
Keith Whaley wrote:
> J. C. O'Connell wrote:
>
> > I just read/heard in photo magazine
> > that Canon is about to release a
> > new FF DSLR with 16.6 Mp! Wow!
> >
> > Looks like the 13 Mp models were
> > not king of the hill for very long.
> >
> > Street price will be around $7K
> >
> > JCO
>
> He
J. C. O'Connell wrote:
I just read/heard in photo magazine
that Canon is about to release a
new FF DSLR with 16.6 Mp! Wow!
Looks like the 13 Mp models were
not king of the hill for very long.
Street price will be around $7K
JCO
Heh, heh... at $7k, they can remain king of the hill as long as they
On 27/10/04, J. C. O'Connell, discombobulated, unleashed:
>I just read/heard in photo magazine
>that Canon is about to release a
>new FF DSLR with 16.6 Mp! Wow!
>
>Looks like the 13 Mp models were
>not king of the hill for very long.
>
>Street price will be around $7K
>
>JCO
Old news I'm afraid
- Original Message -
From: "J. C. O'Connell"
Subject: state of the art 35mm DSLR
I just read/heard in photo magazine
that Canon is about to release a
new FF DSLR with 16.6 Mp! Wow!
Well thats the last nail in medium format's coffin.
William Robb
J. C. O'Connell wrote on 27.10.04 17:18:
> I just read/heard in photo magazine
> that Canon is about to release a
> new FF DSLR with 16.6 Mp! Wow!
>
> Looks like the 13 Mp models were
> not king of the hill for very long.
>
> Street price will be around $7K
Quite old "news". There have been alre
I just read/heard in photo magazine
that Canon is about to release a
new FF DSLR with 16.6 Mp! Wow!
Looks like the 13 Mp models were
not king of the hill for very long.
Street price will be around $7K
JCO
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