Farpoint Adjustable Tri-Bahtinov Mask — 2.5" to 4.5" OTAs Nebula Bandpass "text": "Any camera or accessory

"text": "Any camera or accessory that uses a standard tripod mount attaches to the FDCM

for which FarpointAstro sells V-size saddles

mounting screws

Every Farpoint laser collimator body is machined from a single piece of aluminum in one machining step — not assembled from separate parts — ensuring perfect concentricity from the factory

12″ — see product drawing

Farpoint Adjustable Tri-Bahtinov Mask — 2.5" to 4.5" OTAs Nebula Bandpass "text": "Any camera or accessoryNot 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 2. 5" to 4. 5" 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