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Fits 11-1/2''-14-1/2'' 292mm-368mm. Aluminum full aperture Bahtinov focusing screen [AZ-504]

AZ-504
$70.00 USD
3 in stock IN STOCK, usually ships within 48h or less directly from our Canadian warehouse
Astrozap: Thinly designed lightweight full aperture aluminum focusing mask with modifiable grommets that offers consistently optimal performance. Fits optical tubes with an outside diameter range of between 11.5" and 14.5" (292 mm - 368 mm).
In order to take advantage of your valuable telescope time, every observer (light side) and imager (dark side) knows that sharp focus is of utmost importance. The Bahtinov Focus Mask's unique diffraction pattern display provides higher precision in determining the best focus point, leading the Bahtinov to recently eclipse the Hartmann mask in popularity. When swapping eyepieces while observing, the Bahtinov mask offers faster, more accurate focusing. For those interested in imaging, where obtaining the best images depends on camera focusing, the Bahtinov mask eliminates the need to guess the best focus point location and allows quick modifications when changing filters or adjusting focus, enabling a smooth imaging session through the night.

The Astrozap Focusing Mask is proudly made in the United States from solid sheet aluminum, contrary to plastic focusing masks available from other manufacturers that are not anywhere near as durable. Powder coating helps maintain its appealing looks by preventing corrosion. AstroZap carries several sizes of focusing masks to fit telescopes with the most common outside diameters. Plastic screws mounted in rubber grommets are adjustable in order to conform to the exterior of the optical tube, keeping the screen in place while avoiding scratching or otherwise causing harm to the telescope's finish. The unique Bahtinov diffraction pattern utilized by this AstroZap Focusing Mask enables consistently optimal focus.

About Fits 11-1/2''-14-1/2'' 292mm-368mm. Aluminum full aperture Bahtinov focusing screen [AZ-504]

Astrozap: Thinly designed lightweight full aperture aluminum focusing mask with modifiable grommets that offers consistently optimal performance. Fits optical tubes with an outside diameter range of between 11.5" and 14.5" (292 mm - 368 mm).

In order to take advantage of your valuable telescope time, every observer (light side) and imager (dark side) knows that sharp focus is of utmost importance. The Bahtinov Focus Mask's unique diffraction pattern display provides higher precision in determining the best focus point, leading the Bahtinov to recently eclipse the Hartmann mask in popularity. When swapping eyepieces while observing, the Bahtinov mask offers faster, more accurate focusing. For those interested in imaging, where obtaining the best images depends on camera focusing, the Bahtinov mask eliminates the need to guess the best focus point location and allows quick modifications when changing filters or adjusting focus, enabling a smooth imaging session through the night.

The Astrozap Focusing Mask is proudly made in the United States from solid sheet aluminum, contrary to plastic focusing masks available from other manufacturers that are not anywhere near as durable. Powder coating helps maintain its appealing looks by preventing corrosion. AstroZap carries several sizes of focusing masks to fit telescopes with the most common outside diameters. Plastic screws mounted in rubber grommets are adjustable in order to conform to the exterior of the optical tube, keeping the screen in place while avoiding scratching or otherwise causing harm to the telescope's finish. The unique Bahtinov diffraction pattern utilized by this AstroZap Focusing Mask enables consistently optimal focus.



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