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AstroZap Focusing Cap for 12" SCT's - AZ-413


AstroZap Focus Cap for 12" SCT's

This Focus Cap from Astrozap does two important jobs for your telescope. 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. However, the Astrozap Focus Cap doesn't stop working there. 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.

Proudly manufactured in the USA and made from lightweight aluminum and powder-coated black, this Astrozap Focusing Cap is both strong and will be durable enough to act as a helpful astronomical accessory for years to come. Three thumbscrews hold the focusing cap firmly in place; no plastic plugs or tools are needed.

This cap will fit telescopes with outside diameters from 330mm-342mm. This measurement is normally that of a 12" SCT. Still, please measure your own telescope before ordering to ensure a proper fit.