UNIGUIDE 50mm GUIDE SCOPE Color:Red a 7nm filter would block

a 7nm filter would block 98% of the unwanted light

software integrated control

While it is a little slower

turn the ring to lock it

The PLUS tube rings from Prima Luce Lab are a perfect match to securely mount your ZWO cooled deep sky cameras when using a camera lens that doesn't have a traditional dovetail mounting system

UNIGUIDE 50mm GUIDE SCOPE Color:Red a 7nm filter would blockThe William Optics UniGuide 50mm with slide base is a small, lightweight guide scope that fits snugly in the saddle handle bar of William Optics telescopes, as well as any finder style saddle. The UniGuide 50 is compatible with QHY, Touptek, ZWO 120MM Mini, 290MM Mini and other 1. 25" cylinder type guide cameras thanks to the included 1. 25" Rotolock adapter. Note: the UniGuide 50mm is not compatible with larger non Mini ZWO guiding or planetary