GIMP 2.9.1 (current experimental builds) handle 16/32 bit images just
fine. Feel free to download from my website as it comes with UFRaw

In any case, you have not provided the RAW CR2 file and so it's hard
to see what is happening here. When you say that your CR2 image is
"tack" sharp, you are probably using Canon supplied RAW decoder which
probably is applying it's version of "Picture Controls" prior to
displaying your image.

Hope this helps.


On Wed, Aug 26, 2015 at 11:41 AM, programmer_ceds <> wrote:
>>I tried the tiff format but it does not seems to make a lot of sense
>>with Gimp.
>>Gimp cannot handle 16-bit tiff images and i lose a lot that extra
>>information from the 14-bit RAW file.
>>Or am i missing something here?
>>Also, why does my windows show that the jpg files are 24bit - should
>>they not be 8bit? Or is it 8 bit per channel * 3?
> The current release version of GIMP (2.8.x) will only operate in 8-bit colour
> depth. The next version of GIMP is said to handle 8, 16 or 32-bits colour 
> depth
> (I only say "is said to" because I haven't tried it). You would therefore have
> to export an 8-bit tif from UFRaw for further processing in GIMP, or use the
> development version of GIMP (2.9.x) which is not recommended for 'important'
> work.
> If you want to work in more than 8 bits until any final conversion to jpg you
> have, at least, the following two alternatives -  use Photoshop/CS (which I
> don't have) or process your raw files in something like RawTherapee (available
> for Windows, Linux and Mac) or darktable (Linux and Mac only) - both of these
> programs are open source and available for free.
> I stand to be corrected on this but there is no 16-bit jpg format - so if you
> want to produce a jpg as the final result of your processing you will have to
> degrade to 8 bits at that point (keeping the file with the 16-bit colour depth
> from which the jpg was generated (in the same way that you work with xcf files
> in GIMP and just output a jpg at the end)).
> As you surmise the 24-bit colour relates to 3 channels, each of 8-bits.
> --
> programmer_ceds (via
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