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K&M PRO5054-MAN 62mm-52mm Step Down Ring

ProMaster 62mm-to-52mm step-down ring lets you use 52mm filters on lenses with a 62mm filter thread, precision machined for a secure fit.

$5.95*
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*Price sourced from Amazon.com. Last updated:Jun 04, 2026.Price and availability are subject to change.

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Overview

The K&M PRO5054-MAN is a ProMaster 62mm-to-52mm step-down ring that serves a straightforward but valuable purpose in any photographer's kit: it lets you mount 52mm filters onto a lens with a 62mm filter thread. This is especially handy if you already own a set of 52mm filters and want to use them across multiple lenses without buying duplicates in every size. The ring is precision machined from metal to ensure clean, accurate threading that seats securely on both the lens and filter without wobble or cross-threading.

Because step-down rings reduce the effective filter diameter, photographers should be mindful of vignetting when using this adapter on wide-angle lenses, where the smaller 52mm filter can encroach on the edges of the frame. On standard or telephoto focal lengths, this is generally not an issue. The ring is thin and lightweight, adding negligible bulk to your setup, and is compatible with any brand of 52mm-threaded filter, not just ProMaster. It is an inexpensive, practical solution for maximizing the utility of your existing filter collection.

Key Features

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.

Specifications

Brand
ProMaster (K&M)
Model
PRO5054-MAN
Type
Step-Down Ring
Lens Thread Size
62mm
Filter Thread Size
52mm
Compatibility
Standard threaded filters and lenses

Pros & Cons

👍 Pros

  • Precision-machined threading ensures a snug, accurate fit without cross-threading
  • Allows reuse of existing 52mm filters across lenses with a 62mm thread, reducing filter purchases
  • Slim, lightweight design adds virtually no bulk or weight to your lens setup
  • Affordable accessory that extends the versatility of your current filter collection

👎 Cons

  • Stepping down from 62mm to 52mm increases the likelihood of vignetting at wide-angle focal lengths
  • The smaller 52mm filter may not fully cover the lens's image circle on wider lenses
  • Standard lens cap for the 62mm lens will no longer fit with the ring and filter attached
  • Only adapts in one direction; a separate step-up ring is needed to use 62mm filters on 52mm lenses

Frequently Asked Questions

It threads onto a 62mm lens filter thread and adapts it down to accept 52mm filters, allowing you to use smaller filters on a larger lens.
Because a step-down ring uses a smaller filter on a larger lens, there is a risk of vignetting, particularly at wider focal lengths where the smaller filter diameter may intrude into the image frame. It is less of an issue on telephoto lenses.
Yes, any standard 52mm threaded filter from any brand will mount onto this step-down ring, and the 62mm side uses standard threading compatible with any 62mm lens.
You can, though stacking multiple rings and filters increases the risk of vignetting and may make the setup front-heavy or difficult to attach a lens cap.

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