The popular Borg 77ED-II f4.6 astrograph features an ED glass element and the Borg 0.7x Triplet Multi Super Reducer with built-in camera rotator for excellent results across a full-frame 35mm sensor.
Fitted with a Borg Helical focuser for precise dependable focusing.
Features
77mm ED doublet objective 0.7x Triplet Multi Super Reducer
355mm effective focal length Fast F4.6 focal-ratio Helical focuser
35mm full-frame coverage Built-in camera rotator
Includes
77EDII Objective Assembly (#2178) 80 Dia. 150mm Tube (#7150) Drawtube for 7136 and 7150 (#7137) Drawtube Holder (7753) Helical Focuser M–M68.8 (#7835) 0.7x Triplet Multi Super Reducer (#7870)