---
product_id: 369020247
title: "Hersmay M42-EOSR Lens Mount Adapter Ring for M42 Screw Lens to EOS R Mount for Canon EOS R RP R5 R6 RF Mirrorless Camera"
brand: "hersmay"
price: "S/.125"
currency: PEN
in_stock: true
url: https://www.desertcart.pe/products/369020247-hersmay-m42-eosr-lens-mount-adapter-ring-for-m42-screw
store_origin: PE
region: Peru
---

# Precise fit Manual control only Full metal construction Hersmay M42-EOSR Lens Mount Adapter Ring for M42 Screw Lens to EOS R Mount for Canon EOS R RP R5 R6 RF Mirrorless Camera

**Brand:** hersmay
**Price:** S/.125
**Availability:** ✅ In Stock

## Summary

> 📸 Elevate your lens game with Hersmay's precision adapter!

## Quick Answers

- **What is this?** Hersmay M42-EOSR Lens Mount Adapter Ring for M42 Screw Lens to EOS R Mount for Canon EOS R RP R5 R6 RF Mirrorless Camera by hersmay
- **How much does it cost?** S/.125 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.pe](https://www.desertcart.pe/products/369020247-hersmay-m42-eosr-lens-mount-adapter-ring-for-m42-screw)

## Best For

- hersmay enthusiasts

## Why This Product

- Trusted hersmay brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Manual Mastery:** Take full control of your aperture and focus for artistic expression.
- • **Solid Build Quality:** Crafted from durable aluminum and brass for longevity.
- • **Precision Engineering:** Enjoy a snug fit with no play or gaps for optimal performance.
- • **Infinity Focus Achieved:** Designed to maintain the correct registration distance for stunning shots.
- • **Transform Your Photography:** Seamlessly adapt M42 lenses to your Canon EOS R series.

## Overview

The Hersmay M42-EOSR Lens Mount Adapter Ring allows photographers to use M42 screw mount lenses on Canon EOS R series mirrorless cameras. Made from solid aluminum and brass, this adapter ensures a precise fit with no play, enabling manual control of aperture and focus while achieving infinity focus for CRC lenses.

## Description

M42-EOSR Lens Mount Adapter Ring for M42 Screw Lens to EOS R Mount for Canon EOS R RP R5 R6 RF Mirrorless Camera

## Features

- Solid full metal mount lens adapter allows M42 42mm Screw Mount Lens to fit on Canon EOSR RF mount series Full Frame Mirrorless Camera body.
- Supports AV / M mode. There is no electronic element in the adapter, aperture and focusing must be manually control.
- Although the lens will fit physically, automatic diaphragm, auto-focusing, or any other functions will not operate correctly while using this adapter.
- Material: Aluminium and brass. Precise fit and solid connection - lens has no play, gap or wiggling when mounted on adapter and no adjustments are required to fit your lens.
- Designed to reach infinity focus while maintaining the correct registration distance required to support CRC lenses or lenses with floating elements.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Package Dimensions L x W x H | 7.6 x 6.8 x 3.4 centimetres |
| Package Weight | 0.1 Kilograms |
| Item Weight | 0.1 Kilograms |
| Brand | Hersmay |
| Part number | RSY-AB251 |
| Size | M42-EOSR |
| Guaranteed software updates until | unknown |

## Images

![Hersmay M42-EOSR Lens Mount Adapter Ring for M42 Screw Lens to EOS R Mount for Canon EOS R RP R5 R6 RF Mirrorless Camera - Image 1](https://m.media-amazon.com/images/I/61iPcZnDU7L.jpg)

## Available Options

This product comes in different **Size** options.

## Frequently Bought Together

- Hersmay M42-EOSR M42 to EOS RF Lens Mount Adapter M42 Lens for Canon EOS R RP R5 R5C R6 R6II R7 R8 R10 R50 R100 Full Frame Mirrorless Camera
- Canon Mount Adapter EF-EOS R
- Meike MK-RF-AF1 13mm + 18mm Metal AF Full Frame Macro Extension Tube Adapter Ring Kit for EOS-R Series Cameras RF Mount Cameras EOS-R EOS-RP

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**Shop now:** [https://www.desertcart.pe/products/369020247-hersmay-m42-eosr-lens-mount-adapter-ring-for-m42-screw](https://www.desertcart.pe/products/369020247-hersmay-m42-eosr-lens-mount-adapter-ring-for-m42-screw)

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*Product available on Desertcart Peru*
*Store origin: PE*
*Last updated: 2026-09-21*