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02-15-2010, 09:38 PM   #181
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QuoteOriginally posted by falconeye Quote
Ok, nothing new in the Vol.1 News installment (and http://www.camera-pentax.jp/new/news02/index.html doesn't exist yet

But I had time to think about it.

1. The 1.7x surface 35mm crop allows for the KAF-40000 sensor or some other similiar-sized sensor.

2. The leaked 645D user manual cover mentions DNG as raw format.

3. Uncompressed DNG from Pentax are (so far) about 13 Bit per Pixel, compressed ones are about 60% as large.

Taking the 100 MB quote from Pentax, this would imply
- 17 MP (16 Bit TIFF / linear DNG encoding)
- 52 MP (16 Bit Bayer encoding)
- 65 MP (13 Bit Bayer encoding)
- 100 MP (13 Bit Bayer encoding compressed)

I don't think they mean the first interpretation as a K-7 does already produce 87 MB uncompressed 48bpp TIFF files ...

I don't think they have taken Kodak's 50MP sensor. It has a poor quantum efficiency (a full stop less than their 40MP sensor!!).


Therefore, I actually start to think that the KAF-40000 is the most plausible candidate in a list of few.

That suggests that these are the likely possibilities, KAF-39000 and KAF-40000. I'm leaning towards the 1st one.

02-15-2010, 09:39 PM   #182
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I just thought I would point out that the image at デジタル一眼レフカメラ:PENTAX 新製品予告サイト has changed.
02-15-2010, 09:50 PM   #183
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QuoteOriginally posted by Blue Quote
That suggests that these are the likely possibilities, KAF-39000 and KAF-40000. I'm leaning towards the 1st one.
KAF-39000 has crop-factor 1.1. It's not 1.7x bigger than 35 mm area. It's bigger.
02-15-2010, 09:54 PM   #184
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QuoteOriginally posted by Steve Beswick Quote
I just thought I would point out that the image at ƒfƒWƒ^ƒ‹ˆŠƒŒƒtƒJƒƒ‰:PENTAX 新製•i—\告ƒTƒCƒg has changed.
And that little arrow on the countdown timer just keeps inching right toward the little camera icon...it's maddening!!
Love the body curve at the prism hump.

02-15-2010, 10:02 PM   #185
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QuoteOriginally posted by ogl Quote
KAF-39000 has crop-factor 1.1. It's not 1.7x bigger than 35 mm area. It's bigger.
Actually, the active area is 49 x 36.8mm and diagonal of 61.3mm.

http://www.kodak.com/global/plugins/acrobat/en/business/ISS/productsummary/F...uctSummary.pdf

The KAF-40000 as an active area of 45.76mm x 35.34mm and 54.78mm diagonal.

http://www.kodak.com/global/plugins/acrobat/en/business/ISS/productsummary/F...uctSummary.pdf
02-15-2010, 10:24 PM   #186
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デジタル一眼レフカメラ:PENTAX 新製品予告サイト

Check it out again...we've got detail!
02-15-2010, 10:29 PM   #187
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it appears to be missing a button and a metal knob from at least one prototype that's been photographed, but it pretty much cleans it up as the 645D (if there was any real doubt anyway!)

They're actually going to release the damn thing!
02-15-2010, 11:05 PM   #188
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ISO and Av+/- buttons?

02-16-2010, 12:01 AM   #189
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A little brightened version:
Attached Images
 
02-16-2010, 03:47 AM   #190
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QuoteOriginally posted by Blue Quote
That suggests that these are the likely possibilities, KAF-39000 and KAF-40000. I'm leaning towards the 1st one.
QuoteOriginally posted by ogl Quote
KAF-39000 has crop-factor 1.1. It's not 1.7x bigger than 35 mm area. It's bigger.
QuoteOriginally posted by Blue Quote
Actually, the active area is 49 x 36.8mm and diagonal of 61.3mm.
Correct, the KAF-39000 has a 35mm surface factor of 2.1, not 1.7 as announced by Pentax.

Of all Kodak product offerings, the older KAF-31600 from 2006 is the only other claim-compatible candidate.
02-16-2010, 03:55 AM   #191
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Interesting this photo doesn't have the M.Up button.


ANy commentary on Medium Format Digital for astrophotography?
02-16-2010, 03:57 AM   #192
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QuoteOriginally posted by C.W Tsorotes Quote
Interesting this photo doesn't have the M.Up button.


ANy commentary on Medium Format Digital for astrophotography?
mmm indeed
02-16-2010, 03:59 AM   #193
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QuoteOriginally posted by falconeye Quote
Ok, nothing new in the Vol.1 News installment (and http://www.camera-pentax.jp/new/news02/index.html doesn't exist yet

But I had time to think about it.

1. The 1.7x surface 35mm crop allows for the KAF-40000 sensor or some other similiar-sized sensor.

2. The leaked 645D user manual cover mentions DNG as raw format.

3. Uncompressed DNG from Pentax are (so far) about 13 Bit per Pixel, compressed ones are about 60% as large.

Taking the 100 MB quote from Pentax, this would imply
- 17 MP (16 Bit TIFF / linear DNG encoding)
- 52 MP (16 Bit Bayer encoding)
- 65 MP (13 Bit Bayer encoding)
- 100 MP (13 Bit Bayer encoding compressed)

I don't think they mean the first interpretation as a K-7 does already produce 87 MB uncompressed 48bpp TIFF files ...

I don't think they have taken Kodak's 50MP sensor. It has a poor quantum efficiency (a full stop less than their 40MP sensor!!).


Therefore, I actually start to think that the KAF-40000 is the most plausible candidate in a list of few.

How does the K7 produce 87mb TIFs?
02-16-2010, 04:29 AM   #194
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Dunno, mine produces 45-50 MB TIFFs.
02-16-2010, 04:32 AM   #195
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QuoteOriginally posted by C.W Tsorotes Quote
How does the K7 produce 87mb TIFs?
QuoteOriginally posted by thibs Quote
Dunno, mine produces 45-50 MB TIFFs.
Tiff is a format that encodes all 3 colors for every pixel, on either 8 or 16 bits and can be compressed or not.

So there's no point in comparing with what you export from the K7.
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