Re: SNR Measurements for CCD vs CMOS sensors

Posted by ellencglad on Aug 18, 2022; 5:50am
URL: http://astroimagej.170.s1.nabble.com/SNR-Measurements-for-CCD-vs-CMOS-sensors-tp1973p1982.html

Hi Karena,
When I input a higher Gain for the Aperture Settings in AIJ prior to performing photometry, SNR values in the Measurements Table increase. Is this what's expected? I'd think that a higher gain would cause a decrease in SNR.

Thanks,
Ellen Glad