CHDK DNG Raws on an A1200: how to best process them?

Started Jul 23, 2013 | Questions thread
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PhotonTrapper Regular Member • Posts: 117
CHDK DNG Raws on an A1200: how to best process them?


I am playing with DNG raw files produced with a CHDK enabled Powershot A1200 using Raw Therapee (

I am a beginner when it comes to raw processing, and I know it's a long learning curve, but I thought I could get a feeling for what is involved and learn a bit with this a low cost set-up before possibly investing more in hardware and software.

The problem I encounter is that no matter how I tweak Raw Therapee parameters for Exposure, Detail and Colour to process the RAW files, I can never get even close to the JPG images IQ produced simultaneously by the camera while shooting (I program CHDK to record both RAW and jpg). Especially in term of noise reduction and banding (color bloats). I do get the extra dynamic range with better colors in the shadows though.

So, here are my questions:

  1. Is there a RAW processing software (Windows) to tackle CHDK enabled Canon Powershot RAW DNG files that mights work better than Raw Therapee for these files?
  2. Is there a profile that I could load into Raw Therapee to get (at least) the IQ of the native jpg?

thanks for any suggestions.

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Canon PowerShot A1200
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