Farpoint Clear Bahtinov Focus Mask — 150mm Square Cheshire Collimator See the Adjustable Tri-Bahtinov for

See the Adjustable Tri-Bahtinov for 13" to 16" OTAs →

Upgrade standard telescope primary mirror collimation springs and collimation knobs with Farpoint Knob/Spring Kit - Zhumell Z12

This bar drops into any V-size saddle

For final primary mirror alignment

Will these fit my telescope

Farpoint Clear Bahtinov Focus Mask — 150mm Square Cheshire Collimator See the Adjustable Tri-Bahtinov forClear Bahtinov focus mask, 150mm square fits 150mm filter holder systems. The clear construction lets more light reach your sensor for brighter star images and stronger, more visible diffraction lines. Slides into the holder slot, gives you perfect focus in seconds, and slides out cleanly when you're done. Made in our own shop in the USA American materials, American machinery, by Americans. Works with most 150mm filter holder systems Lee, NiSi, Cokin