Mario Trams

gp_camera_wait_for_event() hangups

Ok, I see. So it might be that the improvement I see here is not there when I'm making just single steps. Right now I did check this only by doing 10 steps or so and then measure the time. Since there is usually just a single step adjustment needed for time lapse applications, this multi-stepping would not help with regard to increasing the frame rate. However, I believe that it would be generally useful to do that multi-stepping also for ISO and aperture. My particular application does suffer somewhat...

You are referring to the A7S with "7C"??? I tried to check that with the d226 property. But there is no such property for both the A7S and the a6300 here. When I run /usr/local/bin/gphoto2 --list-all-config (gphoto2 verison 2.5.27 and libgphoto2 version 2.5.27) I'm also getting an entry /main/other/d21e which seems to resemble the ISO settings. However, cannot change it. When I execute for instance /usr/local/bin/gphoto2 --set-config-index=/main/other/d21e=5 then nothing is happening. When I do the...

Ok, there we go.... Version 2.5.27 does improve the situation, indeed. But apparently only for the shutter speed. On the A7S it is still somewhat slow, but around three times faster than before. That's better than nothing.... On the newer Sony a6300 the settings are changed almost instantly now - this is almost perfect there. Might it be that the same improvement that has been done for the shutter speed setting could also be applied for the aperture and ISO settings?

Yet another follow-up: The compilation issue has been solved. It was the libusb-dev packet that was missing. I'll report more later on regarding the actual topic.....

As a follow-up: I also tried to build version 2.5.26 and even 2.5.25 from the source. Both are failing equally. Since version 2.5.25 that is coming with Ubuntu 20.04 is working, there seems to be an issue with the compilation. Although configure is reporting some warning that some camlibs are not build, I think that this is not the reason, since this seems to be dedicated to a Lumix library that appears to be excluded by default. For reference I'm attaching the configure output I got for 2.5.25.

Thanks for your response, Marcus. Indeed, I checked that and I'm running version 2.5.25, which is the latest standard version installed on Ubuntu 20.04LTS which I'm running. The recent version is 2.5.27, and the release notes of 2.5.26 mention some changes in that direction. I did grab the source code of 2.5.27 and did install it more or less as usual with ./configure --prefix=/usr/local; make; make install. However, it does not find the camera any more now. I did also test this with gphoto2 (version...

Long exposure adjustment (shutterspeed/aperture/ISO) delays on Sony A7S