ASI 1600 MM-C Linearity

daserpey

I would like to use the ASI 1600 MM-C for photometry and I would like to know if the linearity is maintained across every gain or I should work just with only one Gain. If that would be the case would it be 0 Gain or 139 Gain (1e/ADU)?

Thank you.

james_screech

I've used an ASI1600MM-C for variable star photometry for a while and find no problem with it. I usually use a gain of 0 to give me the greatest dynamic range. I've also used a gain of 80, at unity gain the dynamic range is reduced so I've avoided going that high.

James

Support@ZWO

Thank you guys, the answer is clear.

daserpey

Hi,

Thank you for the answers. I could finally do some test at 200 gain and it is pretty linear from 5000 ADU to 45000 ADU.

Sam@ZWO

here is one detail test result

https://www.cloudynights.com/topic/554803-more-asi1600mm-cool-statistics-linearity-and-more-zwo-settings/