A Rho Oph nebulosity set from this morning.
Darks used here for the first time. Looks
like the column defect is gone , as are the blue dark holes
predominant in my recent SLR lens / QHY-8 stuff.
Pic 1 : a set of 100 x 30 sec shots with darks from suburban Adelaide.
Pic 2 : set processed without darks. (my usual method)
Pic 3 : 30 sec dark stack (with a curve) to show the defects / hot pixels.
