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Vello Lens Mount Adapter for M42-Mount Lens to Canon RF-Mount Camera

BH #VELACRM42 • MFR #LA-CR-M42
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Vello Lens Mount Adapter for M42-Mount Lens to Canon RF-Mount Camera
Key Features
  • M42 Lens to RF-Mount Body
  • Supports Focusing to Infinity
  • Zinc Alloy Construction
  • Aluminum Alloy Lens Mounting Ring
This Vello Lens Mount Adapter allows an M42-mount lens with a fully depressible aperture pin to be used on a Canon RF-mount camera. It is designed to support focusing to infinity, is constructed from zinc alloy, and utilizes an aluminum alloy mounting ring to provide a durable, yet lightweight camera-to-lens connection.
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Vello LA-CR-M42 Overview

This Vello Lens Mount Adapter allows an M42-mount lens with a fully depressible aperture pin to be used on a Canon RF-mount camera. It is designed to support focusing to infinity, is constructed from zinc alloy, and utilizes an aluminum alloy mounting ring to provide a durable, yet lightweight camera-to-lens connection.

When an image is taken with this lens mount adapter, a matte black internal coating minimizes the potential for reflections within the adapter barrel, which could otherwise result in unwanted glare within the image.

  • Allows an M42-mount lens with a fully depressible aperture pin to be used on a Canon RF-mount camera
  • Attached lens can focus to infinity
  • Zinc alloy construction with aluminum alloy lens mounting ring provides a lightweight and durable camera-to-lens connection
  • Internal coating minimizes reflections within the adapter barrel
UPC: 847628018457

Vello LA-CR-M42 Specs

Item Type
1x Lens Mount Adapter
Camera Compatibility
Canon RF Mount
Lens Compatibility
M42 Mount
Electronic Communication
No
Included Shims
Materials
Metal
Weight
3.6 oz / 102.06 g
Packaging Info
Package Weight
0.23 lb
Box Dimensions (LxWxH)
2.9 x 2.9 x 1.75"

Vello LA-CR-M42 Reviews

Vello Lens Mount Adapter M42 to Canon RF mount

By Pamela
Rated 5 out of 5
Date: 2026-07-31

I purchased the adapter for an Asanuma Auto-Tele F135 mm lens that someone gave me for a film camera. The adapter allows me to use it on my Canon EOS R. I also tried it on another lens--Promatic 55mm--that was on an old broken film camera, and was surprised that it worked on that as well. Very satisfied with the purchase.

Works Well

By Benjamin
Rated 4 out of 5
Date: 2026-03-18

Does what it needs to, just make sure to keep the screws tight

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