Cloud Break Optics

Reducer/Flattener for 400-600mm Refractors (TV-85)

Reducer/Flattener for 400-600mm Refractors (TV-85) - Main image
$261.95 $403 In stock

Category: Astrophotography Accessories

Description

Designed for TV-76 and TV-85.

Model TRF-2008 0.8x Reducer/Flattener converts TV-85 to 480mm f/5.6 and TV-76 to 380mm f/5.0 for flat field, fast photography. Fully multi-coated 3-element unit inserts directly into 2" focuser, accepts standard T-rings for 35mm cameras. "This accessory is a must-have for someone planning to use the TV-85 photographically" - review in Sky & Telescope, July 1999. Also it can be used with any 400-600mm refractor.

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Customer Reviews (4.2 / 5 · 5 reviews)

Charlotte Q. ★★★★★

The three-element multi-coating really pulls in crisp star shapes across the whole frame—my 85mm now gives clean, round stars right to the edges at f/5.6. Exposures feel noticeably shorter too.

Joseph ★★★★★

Finally got my TV-85 to 480mm f/5.6 and the stars are pinpoint corner to corner—the 3-element optic really does its job. Even at the faster f-ratio, the field flattening is obvious in my first test shots. Slight learning curve getting the spacing right, but once dialed in, it's a game changer for de

Sophia ★★★★☆

This little reducer got my TV-85 down to f/5.6 and the stars are much sharper across the whole frame now. Threaded on smoothly and the coatings look clean. Only wish it came with a dust cap.

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