Quote:
Originally Posted by Craig_
A normal image will have signal and noise - hopefully a favourable ratio towards the signal (SNR) but a dark has no signal, just the noise, so they will look like a frame of noise. Normal 
Spikes on one side of the frame may be amp glow. This can be calibrated out with darks. |
Was the moon, must be a slight gap in the scope cover. Threw a black jacket over, and all good. I actually thought my ZWO filter drawer may have been the culprit, all a learning experience
Cheers,
Lance