M54-M54-7.5/M54-M54-10 Adapter

$11.7 ~~$18~~ In stock

The M54-M54 Adapter from ZWO is an astrophotography accessory that connects M54 threads to M54 threads. It is offered in two thickness options, letting you choose the spacing that fits your imaging train.

Brand: ZWO
Thread type: M54 to M54
Available thickness options: 7.5mm and 10mm
SKU options: M54-M54-7.5 (7.5mm) and M54-M54-10 (10mm)
Category: Astrophotography Accessories

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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 (4.6 / 5 · 5 reviews)

Emily A. ★★★★★ Oct 20, 2026

The 10mm thickness option was exactly what I needed to correct my spacing between the camera and flattener. Threads are smooth, no play at all, and it's machined cleanly. Took the guesswork out of my setup.

Ruby ★★★★★ Oct 19, 2026

Perfect fit for dialing in my back focus — the 7.5mm thickness got my spacing exactly where it needed to be. The threads are smooth and engage cleanly every time.

Elizabeth ★★★★★ Oct 18, 2026

The threads on this adapter are machined perfectly, and the 7.5mm thickness gave me the exact back focus I needed for my setup. It screwed on smoothly with zero play, which made dialing in my framing way less frustrating.