|
Hi Geoff,
Can you do me a favour and collect a 1800sec dark frame and a bias frame at -30C? (Ideally a master dark with a master bias subtracted from it). They can be centered cropped 200x200 FITS frames. I would like to know what the dark current is at that temperature to compare to my cactus Alta U16M.
The temperature reading cannot be really compared between camera models (i.e. where is the thermistor located wrt the copper block and CCD), but the dark current which we really care about reveals how well the chip is cooled.
Thanks,
EB
|