Dp2m iso comparison with other camera

I keep hoping the Foveon-based cameras will make some great leap forward. But it looks like the Sigma designers haven't figured out how to use all that 'horsepower' yet. The Fuji X100 samples look far better.

Thanks for posting the link.
 
The only thing that bothers me is marketing bs about it being a 45mp sensor. It is a true 15 mp sensor. All sensor using a color array can only represent one color out of the three possible at each pixel location. A value from 1 to 255 is associated w/ odor intensity (8 bits, a byte is needed). The sd1, dp1m and dp2m each pixel location needs to represent three colors (3 bytes) thus 15mp x 3 --> 45mb raw files at min. Thus no color adjacency issue, no guessing that could cause issues w/ resolving a clean edge.

If I ever bought this camera I would use it within it constraints and not be worried about the negatives. Between rx100, x100, and xp1, I have other things well covered. Over 60 % of my photography is w/ landscape and inanimate objects. The ret is split between street, portraits and family related pictures.

Cheers
Gary

Ps another way to look at it, if someone were to produce a monochrome 15mp camera, in theory it should resolve the same detail as this sensor (dp2m) but w/ much smaller raw data size since no need for storing info on three color intensities.. Ala Leica monochrome...
 
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GaryLH said:
The only thing that bothers me is marketing bs about it being a 45mp sensor.
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Absolutely don't care as long as there are enough pixels to make decent print (and there are enough). RAW file size bothers me more than this.
 
btgc said:
Absolutely don't care as long as there are enough pixels to make decent print (and there are enough). RAW file size bothers me more than this.
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Yes point taken... Got enough ram to handle processing temp space plus raw CPU horsepower. :rolleyes:

Gary
 
It is BS, but the entire industry is using the same BS, so Sigma has to go along with it. When they first released a Foveon camera, they did in fact use the "real" MP count, but because nobody else did, their MP counts looked very low.

GaryLH said:
The only thing that bothers me is marketing bs about it being a 45mp sensor. It is a true 15 mp sensor. All sensor using a color array can only represent one color out of the three possible at each pixel location. A value from 1 to 255 is associated w/ odor intensity (8 bits, a byte is needed). The sd1, dp1m and dp2m each pixel location needs to represent three colors (3 bytes) thus 15mp x 3 --> 45mb raw files at min. Thus no color adjacency issue, no guessing that could cause issues w/ resolving a clean edge.

If I ever bought this camera I would use it within it constraints and not be worried about the negatives. Between rx100, x100, and xp1, I have other things well covered. Over 60 % of my photography is w/ landscape and inanimate objects. The ret is split between street, portraits and family related pictures.

Cheers
Gary

Ps another way to look at it, if someone were to produce a monochrome 15mp camera, in theory it should resolve the same detail as this sensor (dp2m) but w/ much smaller raw data size since no need for storing info on three color intensities.. Ala Leica monochrome...
Click to expand...
 
GaryLH said:
Yes point taken... Got enough ram to handle processing temp space plus raw CPU horsepower. :rolleyes:
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My elder PC is slow already with DP1 RAW files. I think it's software as Pentax raw files at PhotoLab move faster.
 
GaryLH said:
I am confused by this part of response.. Can u elaborate?
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I'm comparing apples to oranges, maybe. But Pentax RAW get processed faster in their software than DP1 RAW in SPP. From what I conclude SPP is slower than Pentax PhotoLaboratory (ancient one, as SPP is). I'm not cross-processing Sigma RAW in Pentax SW or vice versa :)
 
btgc said:
I'm comparing apples to oranges, maybe. But Pentax RAW get processed faster in their software than DP1 RAW in SPP. From what I conclude SPP is slower than Pentax PhotoLaboratory (ancient one, as SPP is). I'm not cross-processing Sigma RAW in Pentax SW or vice versa :)
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IC. Got it
Gary
 
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