Originally posted by Aegon When you say that you use DigiCam, do you mean DigiKam? If not, do you have a link to the source?
Yep, it's DigiKam... or better yet the "KDE ShowPhoto" application (which seems to be DigiKam with a slightly modified UI for raw/image manipulation). I discovered it by accidentally clicking on a pef file in konqueror, this app opened the raw file after automatically applying exposure, sharpening and noise reduction
Yesterday evening I ran into a "bad" pef file again. It was shot in single drive mode, so drive mode doesn't seem to be the problem here (all the "bad" pef files shot in continous mode seem to be just coincidence). None of the apps I have (raw therapee, ufraw, rawstudio, digikam/showphoto) could open the file. I was curious, so I installed pentax photo lab and ... tadaaaa! it could open the file and convert it to jpeg! Although I have to mention that the pef file in photo lab and the resulting jpg both looked quite horrible - either because it was an underexposed high iso shot or maybe the pef really was damaged.
Here's my newest theory
: what seems to be common in all of my "bad" pef files is that all of them are underexposed shots at iso 1000-1600. Unfortunately I deleted the "bad" files shot at the weekend, so I can't test whether pentax photo lab would open and convert them or not. I'll do some tests later. If the pentax app will be able to open all the "bad" files then we probably have some raw incompatibility issue with our third party applications (afaik almost all of the linux raw development apps use dcraw to decode raw files, so if dcraw is not 100% compatible with K-m raw files then it's no wonder none of the linux apps can open the "bad" files). I'll also do some tests with dng files (raw file type set to dng in menu) and try the "bad" files in Lightroom, Silkypix and other windows apps. To avoid any future surprises, I'll shoot all important things with "raw+jpeg" setting.
Herndon, maybe you (or one of your friends) could try to install pentax photo lab and see if that can open your bad files. If yes, then I'm 90% sure it's an incompatibility issue.
Last edited by simico; 03-03-2009 at 01:28 AM.