£12.99

Hersmay M42 to Canon EOS R Mount Lens Adapter Ring

Price data checked 6 days ago

View at Amazon

We'll watch every seller, every day. One email when your price arrives.

It has never been this cheap. We have no record of a lower price.

£13 today · cheaper than every other day in the last 3 months

NEW HERE?

Amazon shows you one price. We show you all of them.

Tosheroon watches Amazon prices so you don't have to. Every product on Amazon has a price history — we make it visible. Set the price you'd actually pay, and we'll email you the second it gets there. No app, no account, one email.

WHAT'S ON THIS PAGE

↓ Price chart
when this has been cheap or pricey
↓ Forecast
where the price is heading next
↓ Statistics
all-time high & low, recent range
↑ Price alert
name your number, we'll email you

Price History & Forecast

Grey patches = out of stock. Cheaper = lower on the chart. Hover for exact prices.

Last 85 days • 85 data points (No recent data available)

Historical
Generating forecast...
£15.00 £12.79 £13.27 £13.75 £14.24 £14.72 £15.20 31 March 2026 21 April 2026 12 May 2026 02 June 2026 23 June 2026

Price Distribution

Price distribution over 85 days • 3 price levels

Days at Price
Current Price
42 days · current 2 days 41 days 0 11 21 32 42 £13 £14 £15 Days at Price

Price Analysis

Most common price: £13 (42 days, 49.4%)

Price range: £13 - £15

Price levels: 3 different prices over 85 days

Description

Give your vintage glass a new life with the Hersmay M42-EOSR Lens Mount Adapter Ring. This adapter allows you to mount M42 screw mount lenses onto your Canon EOS RF mount mirrorless camera bodies. It is designed for enthusiasts looking to use classic lenses, such as those with Praktica or Pentax threads, on modern full-frame systems like the Canon EOS R, RP, R5, and R6. Built from high-quality aluminum and brass, this adapter provides a precise fit and a solid connection. You can expect a secure mount where the lens sits firmly without any play, gaps, or wiggling. Because this is a manual adapter, it gives you full control over your creative process through manual focusing and aperture adjustment. This adapter is specifically built for the EOS RF mount series and is not compatible with EOS EF film/SLR cameras or EOS M EF-M cameras. It supports AV and TV modes, allowing you to enjoy the unique character of older optics on your modern mirrorless setup. Please note that since there are no electronic elements, autofocus and automatic diaphragm functions will not be available.

Key Features

Compatible with Canon EOS RF mount mirrorless cameras including EOS R, RP, R5, and R6 models.

Fits all M42 screw mount lenses with an outer diameter of 42mm or inner diameter of 41mm.

Constructed from durable aluminum and brass for a precise fit and a solid, stable connection.

Allows for manual control of aperture and focusing to utilize vintage lens characteristics.

Supports AV and TV shooting modes on your compatible Canon mirrorless camera body.

Designed to prevent lens play or wiggling for a secure mount during photography sessions.

Product Specifications

Brand
Hersmay
Size
M42-eosr
Domain
Amazon UK
Listed Since
18 August 2020

Barcode

No barcode data available

Similar Products You Might Like

Hersmay Nikon F to Canon EOS RF Lens Mount Adapter
98% match

Hersmay Nikon F to Canon EOS RF Lens Mount Adapter

Hersmay

£17.65 23 Jun 2026
Hersmay FD-EOSR Lens Adapter for Canon FD to EOS R/RF - Full Metal
98% match

Hersmay FD-EOSR Lens Adapter for Canon FD to EOS R/RF - Full Metal

Hersmay

£22.99 27 Jun 2026
FOTGA M42 to Nikon Z Mount Adapter Ring - Metal 42mm Screw Lens
98% match

FOTGA M42 to Nikon Z Mount Adapter Ring - Metal 42mm Screw Lens

FOTGA

£10.99 15 Feb 2026
FOTGA FTZ Nikon F to Z Mount Lens Adapter Ring
98% match

FOTGA FTZ Nikon F to Z Mount Lens Adapter Ring

FOTGA

£17.34 27 Jun 2026
Fotodiox Pro Lens Mount Adapter Compatible with Nikon Nikkor F Mount G-Type D/SLR Lenses to Nikon Z-Mount Mirrorless Camera Bodies
97% match

Fotodiox Pro Lens Mount Adapter Compatible with Nikon Nikkor F Mount G-Type D/SLR Lenses to Nikon Z-Mount Mirrorless Camera Bodies

Fotodiox

£60.93 26 Jun 2026
Fotodiox Pro Lens Mount Adapter Compatible with Select Contax G Lenses to Nikon Z-mount Cameras
97% match

Fotodiox Pro Lens Mount Adapter Compatible with Select Contax G Lenses to Nikon Z-mount Cameras

Fotodiox

£88.35 25 Jun 2026
Fotodiox Pro Lens Mount Adapter Compatible with Mamiya 645 (M645) Mount AF/AF-D Lenses to Canon RF-Mount Camera
97% match

Fotodiox Pro Lens Mount Adapter Compatible with Mamiya 645 (M645) Mount AF/AF-D Lenses to Canon RF-Mount Camera

Fotodiox

£100.37 27 Jun 2026
NEEWER EF to EOS M 0.71x Speedbooster Lens Mount Adapter
97% match

NEEWER EF to EOS M 0.71x Speedbooster Lens Mount Adapter

NEEWER

Out of Stock 21 Jun 2026
NEEWER EOS R Mount Adapter: EF/EF-S to RF Autofocus Converter Ring for Canon EOS R Series Cameras, Max Load: 4.4lb/2kg
97% match

NEEWER EOS R Mount Adapter: EF/EF-S to RF Autofocus Converter Ring for Canon EOS R Series Cameras, Max Load: 4.4lb/2kg

NEEWER

£76.49 25 Jun 2026
TTArtisan 35mm F1.4 Manual Focus Lens for Sony E-Mount APS-C Cameras
97% match

TTArtisan 35mm F1.4 Manual Focus Lens for Sony E-Mount APS-C Cameras

TTARTISAN

£89.00 14 Feb 2026
Fotodiox Pro Lens Mount Adapter Compatible with Mamiya RB67/RZ67 Mount Lens to Canon RF Mount Mirrorless Camera Body with Built-in Focusing Helicoid
97% match

Fotodiox Pro Lens Mount Adapter Compatible with Mamiya RB67/RZ67 Mount Lens to Canon RF Mount Mirrorless Camera Body with Built-in Focusing Helicoid

Fotodiox

£165.99 28 Jun 2026
Tokina SZX 500mm F8 MF for Micro 4/3
97% match

Tokina SZX 500mm F8 MF for Micro 4/3

Tokina

Out of Stock 25 Jun 2026
Fotodiox Pro Lens Mount Adapter Compatible with Nikon F-mount G-Type Lenses to Canon RF-Mount Camera
97% match

Fotodiox Pro Lens Mount Adapter Compatible with Nikon F-mount G-Type Lenses to Canon RF-Mount Camera

Fotodiox

£66.78 24 Jun 2026
Tokina SZX 500mm F8 MF for NIKON F
97% match

Tokina SZX 500mm F8 MF for NIKON F

Tokina

£307.79 26 Jun 2026
Fotodiox Pro Lens Mount Adapter Compatible with Arri PL Lenses to Sony E-Mount Cameras
97% match

Fotodiox Pro Lens Mount Adapter Compatible with Arri PL Lenses to Sony E-Mount Cameras

Fotodiox

£66.53 27 Jun 2026
Tokina SZX 500mm F8 MF for Nikon Z
97% match

Tokina SZX 500mm F8 MF for Nikon Z

Tokina

£339.90 25 Jun 2026
Hersmay EF-EOS M Auto Focus Adapter for Canon EF to EOS M
97% match

Hersmay EF-EOS M Auto Focus Adapter for Canon EF to EOS M

Hersmay

£29.99 15 Feb 2026
VILTROX 28mm F4.5 Pancake Lens for Sony E - Auto Focus Ultra-Thin Prime Wide Angle Full Frame Lens
97% match

VILTROX 28mm F4.5 Pancake Lens for Sony E - Auto Focus Ultra-Thin Prime Wide Angle Full Frame Lens

VILTROX

Out of Stock 26 Jun 2026
BigKing 58mm 0.35X Wide Angle Fisheye Lens for DSLR Cameras
97% match

BigKing 58mm 0.35X Wide Angle Fisheye Lens for DSLR Cameras

BigKing

£35.78 26 Jun 2026
AstrHori 50mm F1.4 Tilt Lens for Canon RF Mount Mirrorless
97% match

AstrHori 50mm F1.4 Tilt Lens for Canon RF Mount Mirrorless

AstrHori

£259.00 24 Jun 2026
VILTROX 16mm f/1.8 AF Lens for Sony E-Mount Full Frame
97% match

VILTROX 16mm f/1.8 AF Lens for Sony E-Mount Full Frame

VILTROX

£527.34 25 Jun 2026
Fotodiox Pro Lens Mount Adapter, Bronica ETR Mount SLR Lens to Fujifilm G-Mount GFX Mirrorless Digital Camera Systems (such as GFX 50S and more)
97% match

Fotodiox Pro Lens Mount Adapter, Bronica ETR Mount SLR Lens to Fujifilm G-Mount GFX Mirrorless Digital Camera Systems (such as GFX 50S and more)

Fotodiox

£110.81 14 Feb 2026
BENOISON 420-800mm Telephoto Lens for Sony E Mount
97% match

BENOISON 420-800mm Telephoto Lens for Sony E Mount

BENOISON

£71.22 20 Jun 2026
TTArtisan 35mm F1.4 Manual Focus Lens for Canon RF-Mount
97% match

TTArtisan 35mm F1.4 Manual Focus Lens for Canon RF-Mount

TTARTISAN

£83.00 27 Jun 2026