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Sigma SD1: Foveon returns from the dead???

scho

Well-known member
Latest from Sigma is "early 2011" and they are working towards producing a full frame sensor.

I recently bought a DP2s to see what the current sensor can do and I was quite pleased with the raw file quality, so now I'm encouraged to see how a larger sensor will perform. I'm not that thrilled with the DP2s camera performance, but I'm willing to work around the warts for the nice files (just need more pixels!).

Here are some 1200x1200 pixel 100% crops from a few recent shots - no resizing or additional output sharpening applied.





 

otumay

New member
Carl, thanks for sharing. The Foveon sensor is unrivaled in color reproduction imho. The resolution is insufficient, I agree. SD1 seems to be the way out of this limitation. As for the full frame option, I am not sure: Even Leica has problems with their M9, it seems.
Your posts are magnificent, the last one has the finest greens I've seen.
Best,
Osman
 

scho

Well-known member
Carl, thanks for sharing. The Foveon sensor is unrivaled in color reproduction imho. The resolution is insufficient, I agree. SD1 seems to be the way out of this limitation. As for the full frame option, I am not sure: Even Leica has problems with their M9, it seems.
Your posts are magnificent, the last one has the finest greens I've seen.
Best,
Osman
Thank you Osman. I agree that Foveon colors are excellent and very accurate. If the upcoming SD1 performs well then the 15 MP sensor would be more than adequate for my needs.
 

Martin S

New member
Carl:

The greens in ur last image are great. Any post-processing, or is the image straight out of the camera????

Thanks.

Martin
 

scho

Well-known member
Carl:

The greens in ur last image are great. Any post-processing, or is the image straight out of the camera????

Thanks.

Martin
Martin,

No color adjustments made. Just batch processed the raw files first through Adobe DNG Converter and then through CornerFix (removes the cyan/green corner color cast in the DP2s files) before importing into LR3 where exposure and capture sharpening were done. Cropped and converted to jpeg from LR to the web.
 

otumay

New member
Let me contribute to this thread with a photograph of a close friend and his daughter, taken with SD14 and 30mm/1.4. Converted to 16-bit TIFF with Sigma PhotoPro and converted to jpeg with PS CS4 and Color EfexPro with no color adjustment. Foveon is mean, ladies and gentlemen, don't you think?;)
Osman

 

scho

Well-known member
Let me contribute to this thread with a photograph of a close friend and his daughter, taken with SD14 and 30mm/1.4. Converted to 16-bit TIFF with Sigma PhotoPro and converted to jpeg with PS CS4 and Color EfexPro with no color adjustment. Foveon is mean, ladies and gentlemen, don't you think?;)
Osman

Osman,

Agree. Beautiful colors and skin tones in the warm lighting.
 

roanjoh

New member
I find that the Foveon sensor shines the most when looking at the photograph 100% zoomed in - the fine details and sharpness it can extract is quite stunning. I actually had quite a bit of difficulty nailing the color cast - mostly turning things into B&W. In any case, I am still very much looking forward to this camera.
 

scho

Well-known member
I find that the Foveon sensor shines the most when looking at the photograph 100% zoomed in - the fine details and sharpness it can extract is quite stunning. I actually had quite a bit of difficulty nailing the color cast - mostly turning things into B&W. In any case, I am still very much looking forward to this camera.
Agree. Have you tried using CornerFix to get rid of the color cast? Works great for my files. Just batch convert your raw files to dng with Adobe DNG Converter and then batch run the dngs through CornerFix and your files will be free of color casts. You can easily profile your own camera by taking one shot of a gray card or blank white wall and use that image to create the profile for CornerFix. You can download CornerFix at the link below and it is free thanks to the creator Sandy Fleishman.

http://sourceforge.net/projects/cornerfix/
 

docrjay

New member
If sigma can team up with Epson and launch a version of the SD1 in the RD1 rangefinder body with at least 2.7 inch screen at the back.

That would be awesome!

The last RD1 has a APS-C(1.5x) sensor, so is the upcoming SD1.

Wouldn't that be worth waiting?
 

Kofronj

New member
I'm not so sure about this being a SD1 preview. Carl likes to screw around at times, and you'll note that it's titled SD ?.

My guess is that he's just having fun with his SD15.
 
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