Best gain for ZWO ASI2600MM Pro in spectroscopy

Dear all,

Last month I received a new spectroscope and added a ZWO ASI2600MM Pro to it as science camera. There is a marked decrease in readout noise when going from gain 99 to 100. I have seen linearity tests at gain 0 here, but not at gain 100, so I wondered what the best gain is for spectroscopy using this camera (and why).

Thanks in advance for your answer!
kind regards,
Nicolàs

Arne put this comment up on the “old forum”… Here is the link.

I’m your google search specialist Jim (DEY) I’ll take payment in land, no taxes, an installed working and networked 12.5 inch or larger telescope that is mine, all mine! I’m serious. :+1:

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