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.
77mm ED doublet objective
0.7x Triplet Multi Super Reducer
355mm effective focal length
Fast F4.6 focal-ratio
35mm full-frame coverage
Built-in camera rotator
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)
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