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02-18-2012, 08:57 AM   #1
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K-01 use the same CMOS of X-PRO 1?

Just read from a Chinese forum. Someone said the pentax K-01 may use the same CMOS of X-PRO1. Anyone can check it and confirm it? So surprise if true

02-18-2012, 09:06 AM   #2
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More info for reference

1. X-Trans CMOS
2. cmos image for K-01 from Pentax web site

But I guess something wrong with the first pic. may be they place the cmos on wrong side. since it's different from the one showing in FUJI film web site

Last edited by yipchunyu; 02-18-2012 at 09:11 AM.
02-18-2012, 12:37 PM   #3
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No, it's not the same sensor. Remember, Fuji does "funny stuff" with the arrangement of the pixels, whereas Pentax sticks to the traditional bayer pattern.

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02-18-2012, 01:55 PM   #4
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I think they are from the same wafer. Fuji is applying its own 6x6 color array, but the techie types seem convinced Sony is providing the sensor. This sensor does not have the honeycomb pixel arrangement or any of the odd features found on Fuji Super CCD sensors. It appears it has ADC on sensor but Fuji wont answer the question.

My guess is it is a Sony 16MP sensor that Fuji is finishing out to their specifications. The IQ and DR of the XP1 samples are very good. You have to respect Fuji ingenuity. The 6x6 color filter is one of those stupid simple ideas that anyone could have done and actually saves money by eliminating the AA filter. Why has nobody thought to rearrange the color pattern for the past 36 years since Bayer was invented.

02-23-2012, 06:59 PM   #5
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QuoteOriginally posted by Winder Quote
Why has nobody thought to rearrange the color pattern for the past 36 years since Bayer was invented.
Pls don't underestimate engineers. The original Bayer pattern allows for a larger resolution in the color channels, even with the AA filter. The luminosity resolving power is the same. And the danger of moire is not eliminated. The affected spatial frequencies are only spread with a lower amplitude with each. So, the probability of Moire is increased but its visibility is reduced. The problem of false colors in specular highlights is shared with the original Bayer pattern w/o AA filter.

It may be that the Fuji pattern brings real progress. Experience will tell. But then it wasn't easy to do earlier because it has a high computational burden if the results shall be competitive in overall resolution. The scientific literature is full of alternative color patterns for the Bayer problem. The idea wasn't the problem.
02-24-2012, 03:53 PM   #6
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QuoteOriginally posted by falconeye Quote
Pls don't underestimate engineers. The original Bayer pattern allows for a larger resolution in the color channels, even with the AA filter. The luminosity resolving power is the same. And the danger of moire is not eliminated. The affected spatial frequencies are only spread with a lower amplitude with each. So, the probability of Moire is increased but its visibility is reduced. The problem of false colors in specular highlights is shared with the original Bayer pattern w/o AA filter.

It may be that the Fuji pattern brings real progress. Experience will tell. But then it wasn't easy to do earlier because it has a high computational burden if the results shall be competitive in overall resolution. The scientific literature is full of alternative color patterns for the Bayer problem. The idea wasn't the problem.
I realize the 6x6 pattern takes more horse power, but Canon & Nikon have been running dual processors for years. How many MF cameras currently use an AA filter? Fuji is claiming the new sensor out resolves the 5DII and has less noise. Thank is quite a claim, but with early results the claims appear to be pretty accurate.

Fuji might have some other magic at work, but all they are talking about is changing the color array and removing the AA.
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