Cloud Break Optics

42mm Large Photographic Field Flattener for 3" Feather Touch Focuser (SFF3-3FT-42)

42mm Large Photographic Field Flattener for 3" Feather Touch Focuser - Main image
$172.16 $269 In stock

Category: Astrophotography Accessories

Description

Large Chip Flattener for Feather Touch 3” Focuser

This large photographic field flattener is made for our f-7 refractors. It threads to the rear of the Feather Touch 3” focuser. This flattener uses the standard 42 mm t-thread for camera attachment. Your DSLR and a standard t-ring will attach to this flattener, providing a completely threaded mounting solution for larger chip cameras when used with the 3” Feather Touch focuser. When using a CCD astro camera, spacer rings and/or extension tubes may be required. 

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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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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)

Alexander ★★★★★

I was worried about back focus spacing, but this flattener dialed in my stars edge-to-edge on the first try with the f-7 refractor. The 42mm chip size gives me room to breathe with my larger sensor.

Ryan W. ★★★★★

The threads on this 42mm unit mate perfectly to my 3" Feather Touch, no adapters or wrestling required. Corners on my f-7 refractor are finally round stars across the whole chip, which is exactly what I needed for my larger camera sensor.

Stella X. ★★★★★

The stars in the corners of my images are perfectly round now, which was impossible with my old setup. Threading it onto the 3" focuser was straightforward and the fit feels rock solid.

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