Vixen A80M Achromatic Refractor Optical Tube Assembly

Achromatic objective : D=80mm F=910mm (f11.4), multicoated optics Resolving powerLimiting magnitude : 1.45 arc seconds Limiting magnitude : 11.3 Light gathering power : 131x unaided eye Finder scope : XY Red dot finder (1x aiming device) Adapter thread : 60mm and 42mm for T-ring Visual back : 50.8mm and 31.7mm push fit with the supplied Flip mirror diagonal Accessories : Tube rings, Dovetail tube plate, Flip mirror diagonal, Carry strap Photography applicable to : Prime focus and Eyepiece projection Size and weigh : 90mm dia. x 890mm long and 3.5 kg / 7.7 lb