Astrozap AstroCap Series Bahtinov Mask

A Bahtinov mask is a focusing aid that creates a specific diffraction pattern when you look at a bright star. By adjusting your focus until the central spike of that pattern is perfectly centered between the other two, you achieve critical focus, which is essential for sharp astrophotography.

This mask is specifically engineered for 14-inch Schmidt-Cassegrain Telescopes (SCTs). While it may fit other brands of 14-inch SCTs, it is optimized for the dimensions of standard SCT designs.

Yes, you must remove the mask once you have achieved focus. It is designed solely as a tool to help you set your focus before you begin your observation or imaging session.

While it is most commonly used to nail focus for long-exposure astrophotography, it is also highly effective for visual observers who want to ensure their planetary or deep-sky views are as sharp as possible.

The AstroCap series is designed by Astrozap to offer a more refined fit and finish compared to generic, one-size-fits-all masks. It provides a secure, consistent placement on the front cell of your telescope, which helps maintain accuracy during the focusing process.