Cloud Break Optics

Adapter, 3.5″ Hedrick Focuser to 2.7″ AP Threads

Adapter, 3.5″ Hedrick Focuser to 2.7″ AP Threads - Main image
Adapter, 3.5″ Hedrick Focuser to 2.7″ AP Threads - View 2
$128.02 $173 In stock

Category: Telescope Accessories

This adapter bolts onto the back of the Hedrick 3.5″ Focuser and provides female Astrophysics threads for use with AP accessories.


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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)

Nicholas ★★★★★

The machining is precise—the threads on this adapter mate perfectly with my AP gear without any wobble. It solved a frustrating connection issue I’d been dealing with for weeks.

Carter J. ★★★★★

Bolted it on to my 3.5″ focuser and the female AP threads lined up perfectly—zero wobble, just a snug, solid connection. Now my AP accessories drop right in with no fuss.

Robert ★★★★★

I was a bit worried about thread compatibility, but this adapter threaded onto my focuser and accepted the AP accessories without any binding. The PDF drawing made it easy to confirm the dimensions before ordering, which I appreciated.

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