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Beep6581 / RawTherapee

A powerful cross-platform raw photo processing program
https://rawtherapee.com
GNU General Public License v3.0
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New DCP Camera Profiles (Canon Powershot G7 X, Pentax K-5 II) #2919

Closed stefan-i closed 9 years ago

stefan-i commented 9 years ago

Continued from: https://github.com/Beep6581/RawTherapee/issues/2890 As suggested there I have taken an additional CC24 shot under real tungsten (traditional 75 Watt Philips bulb :)) I tried to follow all your other suggestions (Tripod, f/8, lowest native ISO, brightest exposure without clipping...), I hope the quality is OK

While at it I took the same Tungsten CC24 shot also with my other camera, a Pentax K-5 II. Currently there is only a single illuminant DCP created with X-Rite software in RT, maybe it's worth it to update this as well with a dual illuminant profile?

All DNG Raw files (Daylight and Tungsten for both Canon G7 X and Pentax K-5 II) can be found here: http://filebin.net/v9b8qg8e22

Beep6581 commented 9 years ago

Great!

Beep6581 commented 9 years ago

Added.

I usually "relax" the DCP profiles a bit, but in the Pentax K-5 II's case I didn't because relaxing caused a significant difference in the red patch between the tungsten and daylight shots.

stefan-i commented 9 years ago

Thanks!

stefan-i commented 9 years ago

One question: Is the embedded tone curve "film like" or "perceptual"?

Beep6581 commented 9 years ago

It's Adobe's standard film curve. The DCamProf documentation calls it a film-curve, and it uses the neutral tone reproduction operator which is based on the same code as the Perceptual curve mode. http://www.ludd.ltu.se/~torger/dcamprof.html#dcp_tone http://rawpedia.rawtherapee.com/Exposure#Curve_Mode