Finder and Guide Scope
Guider scope with optic diamter: 60 mm, focal length: 280 mm, weight (include guider ring and dovetail): 640 g, back focus: 15 mm, focuser type: rotate focuser, tube travel: 30 mm, dovetail: include 5 1/4" screw. Compatibile with all ASI cameras.
Focal Length: 280mm
Focal Ratio: f/4.6
Optics: Multi-coated lens
Focus Travel: 30mm
Rings:Two fully adjustable rings with six alignment screws
Dovetail: 1/4" 20tpi threaded holes for easy mounting