Megadap M2RF Autofocus on Your Leica M Glass Now on Canon RF
Here's one that made me sit up. Megadap just announced the M2RF, which it's calling the world's first M-to-RF autofocus adapter. In plain terms, it lets you put manual-focus Leica M lenses on Canon RF cameras and actually get autofocus out of them. If you've got a drawer full of gorgeous M glass and a Canon body, this is a genuinely exciting little piece of kit, and at $399 it won't break the bank.
Megadap has been doing this trick for a while now with its Sony adapters, so seeing them bring the same electronic autofocus magic to the Canon RF world is great news. Let's dig into what it actually does.
What the M2RF Does
The whole idea is autofocus on lenses that were never designed for it. Leica M lenses, and M-mount glass in general, are manual-focus by nature. The M2RF adds a motorized helical drive inside the adapter that physically moves the lens to focus, so your fully manual optic suddenly behaves like an autofocus lens on the camera.
It's built for both full-frame and APS-C Canon RF bodies, and it plays nicely with M-mount lenses from Leica, Voigtländer, Zeiss, and plenty of third-party makers.
The Features That Matter
- Full Canon Dual Pixel AF support, including Eye Detection, Subject Tracking, Face Priority, and AF-C, so it taps right into Canon's autofocus smarts rather than some watered-down version
- A maximum 4.5mm extension that shortens the minimum focusing distance, which opens up close-up and macro work
- In-body image stabilization (IBIS) support, so you keep your Canon body's stabilization for handheld shooting
- A 4-step aperture lever that syncs the camera's displayed aperture value with what the lens is actually set to
- EXIF logging that records lens name, focal length, and aperture for up to four different lenses, so your metadata stays useful
- A quick AF/MF switch, one click to swap between autofocus and manual, and a double-click to jump into macro mode
- Adapter stacking support, meaning you can chain adapters to mount even more lens systems, for example Nikon F to Leica M to Canon RF
- A premium build in black anodized aluminium with silver matte pearl nickel electroplating, so it looks the part next to nice M glass
A Couple of Things to Know
This isn't total hands-off automation, and that's fine. Aperture is still set manually on the lens, and you set the camera's aperture to match. That's normal territory for adapted M glass and the 4-step lever helps keep things in sync.
There's also a weight limit. The M2RF is rated to safely support lenses up to 500g. Most M primes are featherweights so that covers a huge chunk of the lineup, but if you're hanging something heavier off it, Megadap recommends giving the lens some manual support to protect the adapter and keep autofocus performing well.
![Megadap M2RF with Canon R6 and Leica 35mm F2 Lens]()
Megadap M2RF with Canon R6 and Leica 35mm F2 Lens
One nice touch for the long haul: the firmware is user-upgradable and the EXIF settings are customizable. It ships with a Type C adapter, and Megadap's software runs on both Windows and macOS, so you can keep it current as compatibility improves.
Price and Availability
The Megadap M2RF is priced at $399 USD and is available through Megadap's official distributor webstores and authorized resellers. For anyone sitting on a collection of manual M lenses, that's a pretty small ask to unlock autofocus on a whole new system. I love seeing adapters like this because they breathe new life into glass you already own, and they let you mix and match across brands, which is exactly my kind of fun.
