First K100D review with samples

2006-06-20 Thread Sylwester Pietrzyk
Translated. Includes interesting interview with one of developers.  
Ken was right - SR was in development for about 20 years!!! And  
results are very good, even with shutter speeds 3 stops lower than it  
would be normally required.
http://translate.google.com/translate?langpair=ja~enu=http%3A%2F% 
2Fkakaku.com%2Farticle%2Fad%2F06%2Fk100d%2Findex.html

Cheers,
Sylwek



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Re: First K100D review with samples

2006-06-20 Thread Martin Trautmann
On 2006-06-20 10:05, Sylwester Pietrzyk wrote:
 Translated. Includes interesting interview with one of developers.  
 Ken was right - SR was in development for about 20 years!!! And  
 results are very good, even with shutter speeds 3 stops lower than it  
 would be normally required.
 http://translate.google.com/translate?langpair=ja~enu=http%3A%2F% 
 2Fkakaku.com%2Farticle%2Fad%2F06%2Fk100d%2Findex.html

It's some fun to read the auto translation.

However, one question comes to mind: They describe the SR mechanism as a
kind of frictionless electromagnetic system, taking no energy loss.

Ok - no energy loss is marketing speech. It will take energy to accelerate
the sensor in one direction, it will take energy to stop it again, and it
will take energy to move it back.

Frictionless sounds like some kind of magnetic levetation. This would
mean, that when powered on the CCD will lift of the zero-position for a
minimum amount of space. This lifting would shift the projection area. 
AF needs a different focus adjustment.

Does the camera refocus when you turn SR on and off?

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Re: First K100D review with samples

2006-06-20 Thread Steve Jolly
Martin Trautmann wrote:
 Frictionless sounds like some kind of magnetic levetation. This would
 mean, that when powered on the CCD will lift of the zero-position for a
 minimum amount of space. This lifting would shift the projection area. 
 AF needs a different focus adjustment.

They could retract the sensor supports when they turn the SR on, I guess...

S

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Re: First K100D review with samples

2006-06-20 Thread William Robb

- Original Message - 
From: Martin Trautmann
Subject: Re: First K100D review with samples



 However, one question comes to mind: They describe the SR mechanism as a
 kind of frictionless electromagnetic system, taking no energy loss.

 Ok - no energy loss is marketing speech. It will take energy to accelerate
 the sensor in one direction, it will take energy to stop it again, and it
 will take energy to move it back.

 Frictionless sounds like some kind of magnetic levetation. This would
 mean, that when powered on the CCD will lift of the zero-position for a
 minimum amount of space. This lifting would shift the projection area.
 AF needs a different focus adjustment.

 Does the camera refocus when you turn SR on and off?

I suspect you are taking the anal-literal approach to reading these things.

William Robb 



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Re: First K100D review with samples

2006-06-20 Thread Martin Trautmann
On 2006-06-20 07:46, William Robb wrote:
 I suspect you are taking the anal-literal approach to reading these things.

Yes, I'd say so. It's the view of a technical person who does try to
understand the function behind.

Others don't mind there anal results or oral input, as long as there's
anything in between.

What's your approach? 

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Re: First K100D review with samples

2006-06-20 Thread William Robb

- Original Message - 
From: Martin Trautmann
Subject: Re: First K100D review with samples



 I suspect you are taking the anal-literal approach to reading these 
 things.

 Yes, I'd say so. It's the view of a technical person who does try to
 understand the function behind.

 Others don't mind there anal results or oral input, as long as there's
 anything in between.

 What's your approach?

Interpretation in context seems to work for me.

William Robb




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Re: First K100D review with samples

2006-06-20 Thread Godfrey DiGiorgi
Thanks for posting the link. Reading google translate japanese is  
itself worth the effort for the laughs. :-)

Sounds like very good AF performance and SR performance. Bodes well  
for the 10Mpixel body too.

Godfrey

On Jun 20, 2006, at 1:05 AM, Sylwester Pietrzyk wrote:

 Translated. Includes interesting interview with one of developers.
 Ken was right - SR was in development for about 20 years!!! And
 results are very good, even with shutter speeds 3 stops lower than it
 would be normally required.
 http://translate.google.com/translate?langpair=ja~enu=http%3A%2F% 
 2Fkakaku.com%2Farticle%2Fad%2F06%2Fk100d%2Findex.html


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Re: First K100D review with samples

2006-06-20 Thread Lon Williamson
I've read with interest what PDMLers say about Pentax antishake,
but I remember reading, I think on DPreveiw, about the Optio A10
where antishake results were inconsistent.  Mind, many think those
folks have a bias against Pentax.  I would guess the DLSRs that are
a' coming would have better implementations.  I'm not gonna consider
them until I hear the early adopters here (and thank goodness we have
some) post THEIR reports HERE.

Meanwhile, film cams and an Optio SV.

Heck, I don't need nothing new til something BREAKS.  Grin.

-Lon

Sylwester Pietrzyk wrote:
 Translated. Includes interesting interview with one of developers.  
 Ken was right - SR was in development for about 20 years!!! And  
 results are very good, even with shutter speeds 3 stops lower than it  
 would be normally required.
 http://translate.google.com/translate?langpair=ja~enu=http%3A%2F% 
 2Fkakaku.com%2Farticle%2Fad%2F06%2Fk100d%2Findex.html
 
 Cheers,
 Sylwek


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Re: First K100D review with samples

2006-06-20 Thread Sylwester Pietrzyk
On 20.06.06, at 19:02 , Lon Williamson wrote:

 I've read with interest what PDMLers say about Pentax antishake,
 but I remember reading, I think on DPreveiw, about the Optio A10
 where antishake results were inconsistent.  Mind, many think those
 folks have a bias against Pentax.  I would guess the DLSRs that are
 a' coming would have better implementations.  I'm not gonna consider
 them until I hear the early adopters here (and thank goodness we  
 have
 some) post THEIR reports HERE.

A10 has completely different SR mechanism than the one in K100D. In  
A10 sensor is moved using microstepping motors, while in K100D it is  
moved be electromagnetic field - guess which one is more responsive? ;-)

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