Hutech Astronomical Products
Equipment for the Serious Amateur Astronomer
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Part #7777 - $87.00
Erecting Prism
 

Combinations with 31.7mm Eyepiece Holder (7317) and small helical focuser (4317).

Interface Specifications:

Objective side:   M36.4/P1 Male
Eyepiece side:   M36.4/P1 Female
Coating:   Fully Multicoated
Backfocus required:   80mm
Effective Optical Dia.:   20mm