dcraw crash when opening EOS 400D raw files

[ruediger]

Hi all,

I wanted to work on some old night sky shots I'v taken three years ago in iceland with a Canon EOS 400D, but dcraw is unable to open the RAW files:

Invoking: dcraw -D -k 0 -t 0 -o 0 -4
Decoding Canon EOS 400D DIGITAL file (3906x2602 pixels, ISO=800, Exposure=20.00s): 100%
*** PCL Win32 System Exception: At address 000000007751E4B4 with exception code C0000005 :
Access violation: invalid memory read operation at address FFFFFFFFFFFFFFFF
<* failed *>
*** Error: Unable to read image: E:/Bilder/2009/2009.03.22-29 - Island/2009.03.27/IMG_1479.CR2
No files were loaded.


BTW: Deep Sky Stacker 3.3.2 crashes also (not sure if there is a newer version available), but at least dcraw 8.94, which is bundled with the "DSLR Logger 3.9" is able to open the files.

I uploaded one test file (IMG_1479.CR2) to public folder "ruediger" on endor file server.

Rüdiger

[Alejandro Tombolini]

Hi Rüdiger, the same here.
However I could open it with ZoomBrowser and then Edit>Edit with Pix and Pix opened it without problem.

BTW, nice picture.

Regards, Alejandro.

[ruediger]

Hi Alejandro,

maybe the crash is caused because additional GPS metadata was written into the file with an external application (GeoSetter). In Lightroom I encountered no problems so far, but the quality I can reach with Lightroom's development on these somewhat underexposed pictures is rather poor. I hope to achieve much better overall quality in PixInsight when I calibrate the files and do MMT denoise etc.

BTW, nice picture.

Thanks! :-)


Rüdiger

[ruediger]

Finally solved with latest update of the DSLR_RAW module in 1.8RC7
:-)