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K-500 doesn't work unlike said in page #27
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A few tips:
If still not working: What is the device of your mounted camera? Best, |
My K-500 been recognised by GTK version without any problem, but I could not set shutter speed, nor ISO. |
What exposure mode do you use? You should use M mode if you want to change both aperture and shutter speed. (ISO setting might not work even in M mode). Can you see the image in the thumbnails or in the preview after taking the photo? |
Of course I'm using M mode. Yes, I can take picture and I see thumbnail on right side - of course if somehow I will get right exposure (I need to make it in dark room as ISO is not possible to adjust and shutter speed is always around 10 sec). Problem is not in this that program don't let me to change ISO and shutter speed. I can adjust values in program, but it looks that these settings are not applied to camera - camera display show always the same: Shutter Speed 9999s and ISO is always 100 Added:
and what doesn't work:
When setting aperture, camera screen is not flashing as when doing other adjustments. Here is Status+HEX - IMHO a bit strange:
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Ok the problem was that I need to launch it via sudo... I'm now only sad that libgphoto2 doesn't support my K-500 to work with Darktable... but that's another project ;) I let you close the issue if @amikot problem is resolved too |
BTW - I also have problems to setup some options, as @amikot |
@amikot Thanks for the intensive testing. About the issues: -Green and AE lock does not really work on some models. -ISO changing is not working in M mode (I've tried several ways using my K-x but it was never working) -Only K-x and K-70 models support --setting. Current shutter speed 0/0 looks really strange in your debug info. Could you attach the same output twice (in M mode). Once after you set shutter to 1/100 and once after you set to 1/1000. I'll try to locate the field in the hex. |
@asalamon74: Thanks for answer, and your will to do anything for users of Pentax cameras :) Green and AE Lock is not essential, but ISO and shutter speed would be really good to be able to set. I just tested this again and just realized that ISO range is wrong for my camera. Below are listings of debug after setting shutter to 1/100 and 1/1000.
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@amikot Which version do you use? I've already fixed an ISO range bug similar to yours. |
@asalamon74: It is version compiled from github few days ago.
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@amikot I've fixed the ISO range bug, now it should show you the range 100-51200. To tell you the truth, I don't really think it will make ISO changing possible. To debug you sent me looks OK, it seems to me the camera just ignores the command. |
After doing first of tests that you asked for, changing shutter speed started to work, but aperture stopped, but with next try, everything except ISO was working. I made some more tests and found out that: For now problem is solved (except ISO and EV), so I abandoned posting debug results. I noticed few minor things that seems to be wrong:
BTW. I saw on their page that Gphoto2 uses pktriggercord routines, but it still not working for me. When trying to take photo witg gphoto2 - getting error that its not supported by camera. That's small off topic. |
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@asalamon74 Slider itself is not bad - there is problem, that you sending command directly to camera just after slider change. I don't know to much about gphoto2, I just wish to use my pentax camera in tethering more with Darktable, and Darktable uses gphoto2 for that. |
I've created a tips and tricks file which lists your connection order trick. Strange GUI: Probably something went wrong during camera-specific initialization. It is quite difficult to debug it if it's not possible to reproduce it. I've cleaned up the GTK code a bit. The program continuously reads status info from the camera and updates the controls. Users can send changes to the camera using the exact same controls. That is the root of the problem. Using an apply button would not help here. If you change the ISO but don't send the ISO-change request to the camera, the GUI component will be updated in the next cycle before you can press the apply button. |
@asalamon74 |
@amikot I close this issue because the K-500 specific problems are (more or less) fixed. To tell you the truth also also like the command line interface better than the GUI. |
Hello,
I tried on Fedora 26 (compiled myself) and my pentax k-500 is not found.
That could surprise me that can work while gphoto2 (librairie) cannot use it.
Any chance to find why ?
Output:
Regards :)
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