Pay in 4 interest-free payments of $12.50 Learn more
Ships within 48 hours · Estimated delivery Aug 5 - Aug 10
1/10 wave or better
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Rule of thumb: the bigger the gap between your tube and the ring
The coiled cable normally plugs into a jack on the hand unit and a jack on the motor
choose the blocks matched to your tube — or email us and we'll point you to the right set
Farpoint Adjustable Tri-Bahtinov Mask — 13" to 16" OTAs solar-filter 1/10 wave or betterNot sure this is the right mask for your telescope? Use our Focus Mask Finder match your scope to the right Standard, Tri Bahtinov, or Hyperstar RASA mask. Adjustable Tri Bahtinov focus and collimation mask for OTAs from 13" to 16" front aperture. Sets onto the front of your telescope, gives you focus AND a collimation check from a single short exposure, and lifts off cleanly when you're done. The adjustable peg system fits any scope in this aperture
US$ 10.00
US$ 11.00
US$ 11.50
US$ 54.00
US$ 34.00
US$ 42.00
US$ 13.49
US$ 20.00
