Farpoint Adjustable Tri-Bahtinov Mask — 13" to 16" OTAs solar-filter See the 10″ pneumatic upgrade

See the 10″ pneumatic upgrade

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1/10 wave or better

Sold separately

Compatible with Newtonian and Refractor telescopes with 1

Farpoint Adjustable Tri-Bahtinov Mask — 13" to 16" OTAs solar-filter See the 10″ pneumatic upgradeNot sure this is the right mask for your telescope? Use our Focus Mask Finder match your scope to the right Standard, Tri Bahtinov, or Hyperstar RASA mask. Adjustable Tri Bahtinov focus and collimation mask for OTAs from 13" to 16" front aperture. Sets onto the front of your telescope, gives you focus AND a collimation check from a single short exposure, and lifts off cleanly when you're done. The adjustable peg system fits any scope in this aperture