Farpoint Bahtinov Focus Mask For Meade 8" F/10 SCT # FP411

Smallest size accommodated = 50mm Largest size accommodated = 600mm Custom sizes available upon request Masks for SCT Type Telescopes Part of our standard line of Bahtinov masks are a series made specifically to fit certain models of Schmidt Cassegran Telescopes. These masks are a perfect match and fit your your particular telescope. Celestron SCT Sizes - 6, 8, 11, 14 Celestron RASA astrographs Meade SCT Sizes - 8, 10, 12, 14, 16 Meade LX850 scopes Skywatcher Custom masks upon request Farpoint Bahtinov Masks Are one of the best tools for focusing your telescope available to astrophotographers. In 2005 Pavel Bahtinov, a Russian amateur telescope maker and astronomer, detailed a new way to easily focus your DSLR, CMOS or CCD camera for astrophotography. With this great tool it is possible to get perfect focus in less than 90 seconds. How it Works Our masks work equally well directly on the end of your telescope scope or on the end of a dew shield. Some minor decenter is ok. Select a bright star for focusing and gently place the Bahtinov focus mask on the front of your telescope. Take a short exposure, perhaps 1-3 seconds. The spikes will present as an X with a line bisecting it. When in focus, the bisecting diffraction spike will be perfectly centered on the X. Remove the Bahtinov mask from your telescope, compose and frame your astrophoto and take your expoures. You will be delighted with the results. Tri Bahtinov Masks We offer a newer varient of the Bahtinov Mask, known as the Tri-bahtinov Mask. The Tri-Mask offers more sensativity in focusing as well as insight into collimation of the optical system. Suitable for users who want more information than just focus. Laser cut, durable ABS plastic We precision laser cut our masks with our 4 in-house laser systems. ABS will not crack or break when dropped or transported in your astro tool box. Suport Peg System Our adjustable masks use soft rubber grommets and custom machined delrin plastic pegs. These soft, no scratch, materials protect your instrument from damage while securely holding the mask in place for the duration of focusing. Bahtinov focus Mask designed specifically to fit Meade 8 SCt Telescopes. Makes focusnig your astrophotos an easy job - ends frustrations and failures. Bahtinov focus masks make focusing for astrophotography fast and easy. Works with all electronic imaging devices. Includes DSLR cameras, modified DSLR cameras, CCD astro-imagers, CMOS astro-images, video cameras, low light systems etc. Use by simply placing the Bahtinov focus mask over the end of your telescope, record a quick image of a bright star, adjust focus and repeat two or three times until perfect focus is achieved. Made in America, by Americans, using American made materials and suppliers, supporting our economy. Buy American please.