Stargzalex

Hi, this is my little case! I own a f/6 20 cm (~8") Dobsonian telescope. 30 mm: 40X, AFOV 68°, FOV 1.7°, pupil 5 mm 20 mm: 60X, AFOV 70° , FOV 1.16°, pupil 3,35 mm 12 mm: 100X, AFOV 52°, FOV 0.52°, pupil 2 mm 9 mm: 133X, AFOV 52°, FOV 0.39°, pupil 1.5 mm 5 mm (planetary) : 240X, AFOV 60°, FOV 0.25, pupil 0.83 mm There are both the 1.25" and 2" versions of the OIII filter... I use the bigger one to observe large nebulae as the Veil Nebula with the 30mm eyepiece. I used it also with my boyfriend's 38 mm eyepiece. Modest but I think it meets my needs Bye!