I am thinking of learning how to stack in PI, Can I stack just the lights and darks in PI?. It seems not worth it to bother about bias, flat, getting a white Tee-shirt at dawn and draping it over the scope etc. All I want is to take some images, follow up with a few darks whilst I am packing things up, then go indoors and process. Or do I have to do all that stuff every time I take an image.
I have been using DSS, but it has completely stumped me with refusing to accept a dark.
