SpaceCat 51 WIFD f/4.9 III Hand Controller Multiple Light Modes: Seamlessly switch

Multiple Light Modes: Seamlessly switch between two brightness levels

Attaches to the computer’s serial port and the telescope’s hand control via a phone jack plug

The polycarbonate and aluminum housing allows the binocular to be lighter weight without sacrificing its durability

125-inches x 42 TPI) Waterproof O-Ring Sealed Argon Gas Purged

Williams Optics ZS66

SpaceCat 51 WIFD f/4.9 III Hand Controller Multiple Light Modes: Seamlessly switchProbably the very sharpest 250mm camera lens you will find! Newest version uses the new William Optics Internal Focuser Design (WIFD) 51mm quadruplet ED APO f 4. 9 (250mm fl) FPL53 & FPL51 glass 5. 25 lbs weight with rings, dovetail, handlebar. >43mm imaging circle with a flat field edge to edge for full frame sensors Dual Vixen and Arca Swiss Dovetail M48 thread to accept wide t rings t mounts RedCat 51 WIFD III Manual (pdf) Features The best value,