|
Flats
Hi folks,
I've been doing astrophotos for a bit now but I've never bothered with shooting flats, I sometimes use darks but not always. I've got myself a light box; homemade using an EL panel and some foam etc.
I've tried some sample shots and I'm not sure what I should be aiming for here. So with that in mind;
1. How long and what settings should I be exposing at? For example if my lights are 180s @ 800ISO f/0 my flats should be?
2. Is this a constant? I use APT for my image acquisition and it suggests a flat should be using the same ISO and I guess it determines the exposure time as it wont let me enter it.
|