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Works like a charm
This focus mask makes focusing really easy. Using Live view on my DSLR makes for super fast focusing. This mask is easy-on, easy-off. Just have to remember to take it off for the real pictures.
This mask will do wonders for nighttime focusing
This mask creates three clear diffraction spikes across bright starts. As you reach focus, the spikes thin down, brighten, and cross. Two of them form an X. The third moves as your focus moves and you are in focus when they meet at the middle. It's super simple to get exacting focus that will greatly reduce frustration and greatly improve your chances of success with astrophotography, especially if you use camera control software that works with the mask to detect the quality of focus. T...
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Bahtinov Focus Masks...
• In 2008 an amateur telescope maker and astronomer published an ingenious new way to easily focus your DSLR, webcam or CCD camera for taking astrophotos. 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 indestructable ABS plastic and comes in two major types and in a range of sizes.
• One mask is a general purpose mask designed to fit refractors and newtonian telescope. The other mask is designed to fit Schmidt Cassegrain telescopes. Both types of mask are available in a range of sizes to cover your needs.