Astroart Forum

Is it possible to set a Region Of Interest?

If taking a huge number of frames, eg for exo planet transit, I have no need for the large FOV my ASI1600MM gives, but it would be nice, to be able to select a suitable ROI.

Drag a box on a full frame image the size you want. Then go to the settings tab click on "From selection". The box you drew on the full frame will now be downloaded until you select the "Full image" button.

Thanks Iver, exactly what I was looking for.
That will save me a lot of disc space going ahead.

I tried ROI on M82 this night, but there seems to be a offset error for each scanline - or what?

Am I doing something wrong? I checked all settings, but I couldn't find anything, that I might have to change.




The fit file is here:
https://www.dropbox.com/s/dc7h0sbxpp6zp ... L.fit?dl=0

Hello, this could be a bug in the 1600mm ASCOM driver, verify if a new version is available.
You can solve selecting the option "Disable subframes" in the Astroart ASCOM plugin 2.10, this will force the download of full frames from the camera and the ROI will be cropped by software (the download will be slower though).
If you use scripts, you may obtain the same result with the command: Image.Crop(x1,y1,x2,y2) after the image has been downloaded.

Thanks Fabio, I have just updated "ASICamera ASCOM Driver 1.0.3.22" to 1.0.3.23.
I will let you know the results once I have tested it.

Changelog for 1.0.3.23 simply says:

I have just tested with "ASICamera ASCOM Driver 1.0.3.23", ROI works fine now!