Cloud Break Optics

USED - Bahtinov Focus Mask for 8" RASA

USED - Bahtinov Focus Mask for 8" RASA - Main image
USED - Bahtinov Focus Mask for 8" RASA - View 2
$14.41 $20.02 In stock

Category: Used Gear

USED GEAR INFORMATION

This mask is in good condition. The previous owner has added grab handles to make removing the mask far easier.

Description

In 2008, Pavel Bahtinov, a Russian amateur telescope maker and astronomer, published an ingenious new way to easily 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 Bahtinov 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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Standard Shipping: Handling (business days) 0–1; Transit (business days) 7–15.

Express Shipping: Handling (business days) 0–1; Transit (business days) 7–15.

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Standard Shipping · United States: $0.00

Express Shipping · United States: $3.99

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Returning an item

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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 (5.0 / 5 · 5 reviews)

Avery ★★★★★

The grab handles the previous owner added are a lifesaver—no more wrestling with the mask in the dark. It slips on and off my scope in seconds, and the focus stars snap right into place. Totally worth grabbing this used unit.

Carter ★★★★★

Pulling the focus mask on and off my 8" RASA used to be a hassle, but the grab handles the previous owner added make it effortless. The alignment spikes are crisp and show a perfect diffraction pattern on the first try. I'm glad I saved money on this used piece—it's working just as well as a new one

Evelyn J. ★★★★★

The grab handles the previous owner added are a game-changer for swapping masks in the dark. Took a few minutes to align on my RASA, but once dialed in, the diffraction spikes were spot-on and sharp.

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