Just for test purposes but quite fun. Focus not spot on though.

Object IDMizar and Alcor
DetailsDouble star(s) Ursa Major
TelescopeRC8 at f/8
CameraAtik 460EX (-15C) and SX filter wheel
IDAS P2 LPR filter
Exposure(s)RGB 6x10s each 2×2
darks, no flats or bias
CaptureAPT, no guiding
ProcessingStacked in Nebulosity, processed in Photoshop