Bahtinov Mask for Camera Lens Size:72mm Camera Lens Bahtinov Mask It accepts Vixen-type dovetail bar

It accepts Vixen-type dovetail bar

Specify your mount when ordering)

Maksutov-Cassegrain Optical Design

The patented dual encoder design allows the telescope to be moved manually whenever the user wishes – but with no need for re-alignment

Features Coma free

Bahtinov Mask for Camera Lens Size:72mm Camera Lens Bahtinov Mask It accepts Vixen-type dovetail barThe Farpoint Camera Filter Bahtinov Focus Mask is an ingenious new way to easily focus your DSLR camera, Mirrorless, webcam or CCD camera for astrophotography. Pavel Bahtinov, a Russian amateur telescope maker and astronomer, created this simple, very intuitive method and the device has universally been named after him: The Bahtinov Mask. This Bahtinov Focus Mask snaps in to your camera lenses that have the specified size filter thread. The Bahtinov