Pay in 4 interest-free payments of $12.50 Learn more
Ships within 48 hours · Estimated delivery Aug 5 - Aug 10
Sold separately
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See the 10″ pneumatic upgrade
1/10 wave or better
Rule of thumb: the bigger the gap between your tube and the ring
Farpoint Adjustable Tri-Bahtinov Mask — 13" to 16" OTAs solar-filter Sold separatelyNot 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
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