Promaster Step Up Ring - 40.5mm-52mm

Name: Promaster Step Up Ring - 40.5mm-52mm
Brand: Promaster
SKU: 5225
Price: 6.77 USD
Availability: InStock
Rating: 5.0 (5 reviews)

Promaster Step Up Ring - 40.5mm-52mm - Main image

$6.77 ~~$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.

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 (5.0 / 5 · 5 reviews)

Michael ★★★★★ Oct 21, 2026

Fits perfectly and the threading is smooth as butter—no annoying grinding or cross-threading like with cheaper rings. Used it to mount a 52mm filter on a 40.5mm lens and it hasn't budged.

Matthew ★★★★★ Oct 20, 2026

Finally a step-up ring that doesn't cross-thread or feel flimsy—the precision machining is noticeable when screwing it on. It's thin enough that my lens hood still fits afterward.

Chloe Z. ★★★★★ Oct 19, 2026

Fits my 40.5mm lens perfectly to use my larger 52mm filters, and the metal feels solidly machined without any wobble. A simple solution that does exactly what it should.