Farpoint bahtinov focus mask--celestron 11" sct W/HYPERSTAR, FP412H
Item No. 781-80450
Manuf. No. Farpoint FP412H
Farpoint Focus Mask for Celestron 11" Telescope with HyperStar, FP412H
Bahtinov focus mask for Celestron C11 Schmidt-Cassegrain telescope, with HyperStar.
Bahtinov Focus Masks In 2008, Pavel Bahtinov, a Russian amateur telescope maker and astronomer, published an ingenious new way to easily focus your DSLR camera, webcam or CCD camera for astrophotography. The method is simple, very intuitive, and the device has universally been named after the inventor: The Bahtinov Mask.
Farpoint manufactures this "lifesaving" astrophotography tool out of virtually indestructible ABS plastic, which comes in two major types and in a range of sizes. The mask pictured below left is a general purpose mask designed to fit refractors and Newtonian telescopes. The mask pictured below right is designed to fit Schmidt-Cassegrain telescopes. Both types of mask are available in a range of sizes to cover your imaging needs.