I had been successfully testing out an SGP beta version with my Canon t3i. Sorry no longer know which one but I think it was the first to support 12800 iso.
Then I bought an SGP license and installed the latest beta. When I “Take one” I get:
Canon:Error in Get CaptureItem. The process cannot access the file 'C:\Users\dts350z\AppData\Local\SequenceGenerator\canonRaw.tmp` because it is being used by another process
Canon:Error in PressShutterButton for mirror settle Error: EDS_ERR_DEVICE_BUSY
Then the camera is locked up. Killing SGP and trying again I got:
Error connecting to Canon EOS! InvalidArgument=Value of ‘0’ is not valid for ‘SelectedIndex’. Parameter name: SelectedIndex.
Even after power cycling the camera. Only rebooting the laptop and disconnecting and power cycling the camera and reconnecting made the camera usable again by SGP or other capture programs.
Also, On SGP latest beta the camera was making a loud clicking noise I’ve never heard it make before. I know what mirror lock sounds like, I know what shutter release sounds like, and I know what both of them together sound like, but this sounding like maybe the mirror smacking into something it wasn’t supposed to. Scary.
I uninstalled SGP latest beta and went back to the stable release version and the Camera works fine.
Camera also works fine with other astronomy capture programs.
Please advise. I need the 12800 iso support. Which Beta is “Safe” to use with my Canon t3i?