M42 Lens Mount to Canon EF-M Camera Mount

Explore new combinations
Rated 5.0 out of 5
Based on 1 review

Combine any M42 mount lens with any Canon EF-M mount camera body.


Notify when available

We're giving back by planting 20 trees with every item sold.

Combine any M42 mount lens with any Canon EF-M mount camera body.



Experiment with new lens combinations and pair any M42 mount lens with your Canon EF-M mount camera.

Our M42-EF-M Lens Mount Adapter is manual so most automatic functions – aperture, autofocus, AE metering and image stabilization – must be adjusted manually. Exposure settings need to be set manually too.


  • 2.51kg CO2 created

  • 1537.5kg CO2 sequestered

  • 600x positive impact

To find out more information about the impact of this Urth product, view our Life Cycle Analysis (LCA) report here


Free standard shipping within Canada.

Standard shipping: 3-7 days.
Express shipping: 1-3 days.

Please allow an extra 2 days for regional areas.


30-day returns.

Shop with confidence knowing you can return products within 30 days of purchase.

M42 Lens Mount to Canon EF-M Camera Mount

New combinations

Utilise different lenses.

Snug fit

Our consciously designed adapters have no light leakage and a secure connection.

Clever details

Anti-reflection matte black finish.

Lifetime warranty

Quality you can trust.

M42 Lens Mount to Canon EF-M Camera Mount


M42 Lens Mount to Canon EF-M Camera Mount

Hardened aluminium

Clever design, durable materials guaranteed for life.

M42 Lens Mount to Canon EF-M Camera Mount

Perfect fit

Designed for a safe, snug fit every time.

M42 Lens Mount to Canon EF-M Camera Mount

Infinity focus

Manual focus through full range to infinity.

How to Use

M42 Lens Mount to Canon EF-M Camera Mount


Set your camera to manual
1. Set your camera mode dial on Manual Mode ("M") or Aperture Priority Mode ("A"). 2. Go to the Camera Menu > Find Custom Functions (C.Fn) > Find "Release shutter w/o lens" > 1: Enable. If applies: Switch your lens to Manual Mode.
M42 Lens Mount to Canon EF-M Camera Mount


Connect to lens
Gently screw your lens into adapter clockwise until firmly attached.
M42 Lens Mount to Canon EF-M Camera Mount


Connect to camera body
Deftly connect adapter to your beloved camera body and rotate clockwise. Hold both the lens and adapter in your hand when rotating for better grip.
M42 Lens Mount to Canon EF-M Camera Mount


Remove from camera
Confidently press your camera's lens release button and rotate adapter and lens counter-clockwise.
M42 Lens Mount to Canon EF-M Camera Mount


Remove from lens
Tenderly press and hold metallic button on adapter and rotate counter-clockwise.

Want some more in-depth info?


How to Use a Lens Adapter

An informative lesson explaining when and how to use a lens adapter on your ...


Urth by you


Frequently Asked Questions

What is a lens mount adapter?

A lens adapter allows you to attach a different brand of lens to your camera body, letting you use an otherwise incompatible lens with your camera.

How do I find the right lens adapter for my lens and camera?

Find your lens mount and your camera mount.

The easiest way to find and confirm your lens mount is to know the mount of the camera it was used on originally. A quick internet search of the camera model followed by lens mount is a sure way to confirm what lens mount you need. For example if you have an old Nikon lens and you know it was used on a Nikon FM2, you can easily find that the lens has a Nikon F-mount. This is particularly useful for lenses that are made for different mounts i.e Sigma and Tamron bring out the same lens with different mounts including EF, F, E so knowing the camera the lens was used on is a good shortcut.

If you have an old second hand lens and you are unsure of the camera it was made for, take all the known details of the lens and search the web.

Why buy a lens mount adapter?

To utilise quality old lenses with your new camera, or match a different make of lens to your camera.

There are countless creative experiments to be explored by mixing different brands of lenses with your camera body. Lens adapters can also help your existing collection of lenses go further with any new cameras you collect. So you can invest in a new camera and make the most of your favourite lenses.

How do you use a lens mount adapter?

Find a detailed how to for each filter at the base of its product page.

In summary, attach your lens to the adapter, and then your adapter to your camera body. Put all settings on your lens and camera into manual mode, and select ‘shoot without lens’ in your camera settings.

When should I use a lens mount adapter?

Whenever you want to use a different make of lens with your camera body.

Because you need to use your camera in full manual mode, you may need to familiarise yourself with this before shooting. You’ll soon work out which lenses you enjoy using with your camera. Analogue lenses can provide professional quality glass at a fraction of the cost of modern lenses so lens adapters can help you shoot with better lenses for less.

Can I change my aperture when using this lens mount adapter?

Only if your lens has a manual aperture control ring.

If you use a lens with electronic aperture and no manual control ring, because this lens mount adapter is fully manual, your aperture would remain at its maximum aperture (lowest f-stop).

"This one is fantastic,very well made and will probably last forever. Prompt delivery, product exactly as advertised." Mary bought our M42 Lens Mount to Canon EF-M Camera Mount

average rating 5.0 out of 5
Based on 1 review
  • 5 Stars
    1 Review
  • 4 Stars
    0 Reviews
  • 3 Stars
    0 Reviews
  • 2 Stars
    0 Reviews
  • 1 Star
    0 Reviews
100% of reviewers would recommend this product to a friend
Customer photos and videos
1 Review
Reviewed by Drey
Verified Buyer
I recommend this product
Years Experience
  • People
  • Outdoor
  • Video
  • Lifestyle
  • Documentary
Rated 5 out of 5
Review posted


FotodioX doesnt have sh*t on Urth.

By far the best adapter Ive ever used.

Was this helpful?
M42 Lens Mount to Canon EF-M Camera Mount

2500000 trees planted so far

Love the world you capture

Your Cart (0)

You're $0.00 away from free shipping!

Free shipping for all Australian customers!

Your cart is currently empty.

You might also like


Zeolite Tech Organiser Black

Keep your valuable items in one versatile pouch for easy