Artesky Tri-Bathinov Mask 90 MM

ITEM #
ART-TRI-BATHINOV-90
  • This mask is fitted for telescopes with apertures no larger than 90 mm
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  • Regular price $29.00

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Artesky Tri-Bathinov Mask 90 MM

Artesky Bahtinov Masks are an excellent choice for astronomers and astrophotographers needing pinpoint focus every time. This mask is fitted for telescopes with apertures no larger than 90 mm

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JJ
04/22/2020
Jonathan J.
United States United States
Tri-Bathinov Mask installation

I have yet to figure out how to install it on my ETX90 scope. Its diameter is larger than my scope face. So i don’t know how to install it other than using tape temporarily. Any instructions or guidance?