SharpCap Forums

I'm trying to do a sensor analysis on my ASI294MC Pro OSC camera...I have it set on RAW16 and max screen size of 4144X2822, for this particular camera that is the max.

I keep getting an error message saying, "Selected Area Too Small. Please Select Larger Area" can't seem to get past this, and I'm already at the Max, unless there is another way to do this. I'm also using an LED flat screen for the light source, and I have it at 65%

Need a bit of assistance with this if you can.

Thanks,

Rod

Hi Rod,

that message means that the selection area, which is used to define which part of the image will be used for the analysis is too small - see https://docs.sharpcap.co.uk/4.0/#Selection%20Area for more information on how to adjust the selection area.

cheers,

Robin

Great, that worked...! Didn't know I had to physically put the square in there. And size it correctly. I have all the camera data now.

Appreciate your help!

Rod

I'm not sure what is good, bad, or mediocre...Does thjis data appear to be normal for this camera?

Rod

Hi Rod,

you've run the analysis in 8 bit mode (and got typical results for that mode). However, you would normally do deep sky imaging in high bit depth, so the results aren't particularly useful to you. They do show however *why* you do deep sky imaging in high bit depth - the effective read noise values from 10 up to nearly 70 electrons for reasonable gain values would ruin deep sky images of anything but the brightest objects.

Best to re-run the analysis in RAW12/RAW14/RAW16 (whichever your camera offers of those)

cheers,

Robin

Ah okay...I was not aware of this I'll redo it in 16bit I guess.

Thanks,

Rod