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Sigma DP Quattro fw update available
Old 02-19-2016   #1
GaryLH
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Sigma DP Quattro fw update available

http://bestmirrorlessblogs.com/firmw...uattro-series/

According to mirrorless lessons website, update fixes issues w/ color accuracy. The sample of the red flower show less punchy, more subtle color..

Gary
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Old 02-19-2016   #2
GaryLH
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From the sigma website
http://www.sigma-global.com/en/downl...producibility/

Hmmmm.. Portrait mode for softer skin..

Gary
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Old 02-19-2016   #3
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Thx Gary
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Old 02-21-2016   #4
Samouraļ
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Thanks Gary.

I wonder what kinds of changes to the sensor calibration/capture differ from previous firmware versions.
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Old 02-21-2016   #5
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Between getting over the last dredges of bronchitis and the dreary/rainy weather we had lately..when I was well, Haven't had a chance to try the new update yet..

Anybody have any comments yet?

Gary
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Old 02-21-2016   #6
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Quote:
Originally Posted by Samouraļ View Post
Thanks Gary.

I wonder what kinds of changes to the sensor calibration/capture differ from previous firmware versions.
I suspecting improvement in the Bayer like algo myself and tune down of the contrast aspects. I hope they improve the awb.

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Old 02-22-2016   #7
Samouraļ
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Quote:
Originally Posted by GaryLH View Post
I suspecting improvement in the Bayer like algo myself and tune down of the contrast aspects. I hope they improve the awb.

Gary
The reason I ask is because I wonder how much of that is baked in before the raw file is created, and what exactly is unchangeable once the file is created. The calibration has to be pretty close to the hardware (otherwise only spp would be seeing changes to the processing algorithm, right?).
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Old 02-22-2016   #8
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They did say that SPP needed to be upgrade.. So something in the change requires SPP update. Since the raw file is suppose to leave the pixel info unchanged (unbaked), I always presumed that the Bayer like algo was only done on the in camera jpg. SPP has to interpret the Bayer like info itself.

U could be right, maybe they used to interpret the algo in camera and wrote to raw w/ the info. Maybe the new version turns off the hw algo assist to raw and allows a more powerful SPP to handle it..

Gary
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Old 02-23-2016   #9
Samouraļ
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Quote:
Originally Posted by GaryLH View Post
They did say that SPP needed to be upgrade.. So something in the change requires SPP update. Since the raw file is suppose to leave the pixel info unchanged (unbaked), I always presumed that the Bayer like algo was only done on the in camera jpg. SPP has to interpret the Bayer like info itself.

U could be right, maybe they used to interpret the algo in camera and wrote to raw w/ the info. Maybe the new version turns off the hw algo assist to raw and allows a more powerful SPP to handle it..

Gary
That makes sense that the firmware is necessary to correct for JPEG engine. I'll have to do some tests with old X3F files that have quirky red channel rendering, see if the new SPP corrects things as seen in the samples.
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