[[1ponders] (Paul)]

I'm having problems calibrating my images when using flats. Using just darks I get image 1. When I include the flats I took this morning I get image 2. I haven't had this problem using flats before. So I'm thinking that I've mucked something in the capturing of the flats. Image 3 contains the details of 1 of the flats

Details:
Canon 300D; Darks 60 sec @ ISO800. Raw. Flats 1/400 sec @ISO800 Raw. Both Darks and Flats Average Combined to create a master Dark and Flat.