Promaster Step Up Ring - 37mm-55mm

Name: Promaster Step Up Ring - 37mm-55mm
Brand: Promaster
SKU: 5197
Price: 6.67 USD
Availability: InStock
Rating: 4.8 (5 reviews)

Promaster Step Up Ring - 37mm-55mm - Main image

Promaster Step Up Ring - 37mm-55mm - View 2

$6.67 ~~$9.95~~ In stock

Category: Stepping Rings

A perfect complement to the ProMaster filter line. ProMaster Stepping Rings are precision machined to properly convert the thread size of your filter and/or lens.

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

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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)

Sophia X. ★★★★★ Oct 21, 2026

Finally, a step-up ring that actually fits tight without any wobble. The precision machining is obvious the second you screw it on. It handled the conversion from 37mm to 55mm perfectly for my filter setup.

Edward Q. ★★★★★ Oct 20, 2026

The threading is so smooth it screws on without any wobble, and the conversion from 37mm to 55mm feels rock-solid on my compact camera. I've used cheaper adapters before that cross-threaded, but this one's precision machining is exactly what I needed.

Ellie ★★★★★ Oct 19, 2026

Snapped this onto my vintage 55mm lens so I could use my modern 37mm filters; the threads are buttery smooth, no wobble at all. Feels solidly machined and hasn't caused any vignetting.