On 06/08/14 14:19, J. Paul Bissonnette wrote:
> Can DT process the output from there cameras? The info I have been able
> to find sounds like their o/p is propitiatory and requires Sigma own
> software.

I downloaded a RAW from here:

http://www.photographyblog.com/reviews/sigma_dp1_merrill_review/sample_images/

Version 1.4.2 of darktable says:

[exiv2] /home/rwh/Downloads/sigma_dp1_merrill_01.x3f: 
/home/rwh/Downloads/sigma_dp1_merrill_01.x3f: The file contains
data of an unknown image type
[rawspeed] No decoder found. Sorry.

Latest version 1.5+1621~gf04c36b from git says:

[exiv2] /home/rwh/Downloads/sigma_dp1_merrill_01.x3f: 
/home/rwh/Downloads/sigma_dp1_merrill_01.x3f: The file contains
data of an unknown image type
RawSpeed:Unable to find camera in database: SIGMA SIGMA DP1 Merrill
[rawspeed] Camera 'SIGMA' 'SIGMA DP1 Merrill', mode '' not supported, and not 
allowed to guess. Sorry.

So no, darktable can't open these files.  I've no idea how easy/hard it'd be to 
add support, though.  It does seem like
libraw has support:

http://www.libraw.org/

...but IIRC the darktable devs are trying to phase out the use of libraw in 
favour of rawspeed.

Regards,

Rob

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