Cloud Break Optics

Carey Focus Mask

Carey Focus Mask - Main image
$10.3 $17.16 In stock

Category: Astrophotography Accessories

Description

In 2009, George Carey, an amateur telescope maker and astronomer from the UK, published a modification of previous focus mask designs to make a much more sensitive version of the device. This focus mask allows you quickly, easily and precisely focus your DSLR camera, webcam or CCD camera for astrophotography. The method is simple, very intuitive, and the device has universally been named after the inventor: The "Carey Mask". 

Farpoint manufactures this great astrophotography tool out of virtually indestructible ABS plastic, which comes in two major types and in a range of sizes. We carry masks designed to fit both refractors and Newtonian telescopes, as well as SCTs.

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United States · Return window (days after delivery): 30. Return method: By mail. Return postage: Seller pays.

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Customer Reviews (4.8 / 5 · 5 reviews)

Aurora K. ★★★★★

My first clear night with it was a revelation—the Bahtinov-style diffraction pattern snapped into focus far more precisely than my old mask ever managed. The finer slits really do make a difference; I could nail critical focus on my scope in under two minutes.

Ava ★★★★★

The diffracted spikes on my first test shot were razor-sharp and perfectly aligned. I love how the design makes focusing on dim nebula targets feel almost effortless.

David ★★★★★

Finally got a clear night to test this mask and the diffraction spikes on bright stars came out razor-sharp. The Bahtinov-style pattern made focusing my telescope on the Pleiades feel almost automatic.