William Optics Gran Turismo 81 Triplet APO Telescope - A-F81GTIV Color:Gold (GD) Efficiencies of the three longpass

Efficiencies of the three longpass filters (Red

When combined with sensitive cameras and the proper “live stacking” software

perhaps the defining galaxy of the classic spiral form can essentially be seen almost in its entirety within one eyepiece field

nothing to spill or dry out

USB to RS-232 Serial Adapter

William Optics Gran Turismo 81 Triplet APO Telescope - A-F81GTIV Color:Gold (GD) Efficiencies of the three longpassWilliam Optics Gran Turismo 81 Triplet APO Telescope Choose Gold or Red 81 mm Aperture f 5. 9 Imaging Refractor Telescope FPL 53 glass for color free Apochromatic performance Air spaced Triplet APO Objective Compatible with 0. 8 Reducer Flattener Optional Covers full frame imaging circle, with Flattener 2. 5" dual speed Rack & Pinion Focuser Colors: Available in 2 colors, Red, or Gold Includes Mounting rings and Vixen style dovetail Dovetail is dual