ZWO Mini Guider Scope
This guide scope is compatible with all ASI cameras.
Lens Diameter: 30 mm
Focal Length: 120 mm
Weight (include guider ring and dovetail): 250 g
Back Focus: adjustable,（0~20 mm）
Focuser Type: front part focuser
Tube travel: 20 mm
Dovetail includes 1/4″ screw hole.