Sky-Watcher Evostar EDX 80 APO Doublet - S11135 Bahtinov Masks If you'd like to use

If you'd like to use it on one of these fine telescopes

Objective: ED Triplet Lens

Processing: DeepSkyStacker

And because the filter is no longer perfectly straight in the beam path

Sky-Watcher Evostar EDX 80 APO Doublet - S11135 Bahtinov Masks If you'd like to useSky Watcher Evostar EDX 80 Limited Edition APO Doublet! Doublet apochromatic optical design Two element, air spaced optical assembly minimizes false color 80mm aperture, 600mm focal length, f 7. 5 focal ratio FPL 53 glass 2. 8 inch dual speed Crayford style focuser Thread on dew shield Aluminum tube coated with glossy, white metal flake finish Included accessories: Tube rings, 2. 8 inch Crayford style focuser, camera angle adjuster, thread on dew