just starting in this endeavor with astrophotography. i have been shooting darks only so far but will start shooting flats and looks like bias frames. I edit in APP. there is a looong discussion on the APP forum but i'm still a bit confused as to what is needed and hoping that i have the following right. Please correct in not!
darks and lights: same iso, same temp, and exposure; i shoot the darks after the lights are done
flats: my main take away from the APP discussion is make sure the exposure time is at least 0.5-1.0 secs, iso doesn't need to match darks/lights iso, same focus as darks lights
bias: iso: match flat frames iso value; fastest shutter speed and view finder and lens cap on
if i match the bias frames to the flats then that should take care of any vignettes and i don't need to shoot flat darks.
do i have this right?
thanks!
darks and lights: same iso, same temp, and exposure; i shoot the darks after the lights are done
flats: my main take away from the APP discussion is make sure the exposure time is at least 0.5-1.0 secs, iso doesn't need to match darks/lights iso, same focus as darks lights
bias: iso: match flat frames iso value; fastest shutter speed and view finder and lens cap on
if i match the bias frames to the flats then that should take care of any vignettes and i don't need to shoot flat darks.
do i have this right?
thanks!
