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AstroZap Focusing Cap for 11" SCT's - AZ-412


AstroZap Focus Cap for 11" SCT's

When you want help focusing the image during CCD or DSLR photography sessions, just turn the center wheel to the "Open" position to reveal a trio of off-axis masks that will get the job done, just like a simple Bahtinov mask can do. The Astrozap Focus Cap doesn't stop working once focus is achieved. Just rotate the wheel again to place the cap in the "Closed" position and either take dark frames or use it as you would any dust cap to keep particles from landing on your optics. This innovative Focus Cap from Astrozap does two jobs in one for your telescope.

Made from lightweight aluminum and powder-coated black, this Astrozap Focusing Cap is both strong and nice-looking and will be a helpful astronomical accessory for years to come. Three thumbscrews hold the Focusing Cap firmly in place.

The focus cap will fit telescopes with outside diameters from 298mm - 316mm. This is the normal measurement of a 11" SCT, but please measure your own telescope before ordering.