Megadap’s M2RF adapter, priced at $399, enables manual Leica M-mount lenses to autofocus on Canon RF cameras, marking a breakthrough for photographers seeking modern functionality with vintage optics.
The Megadap M2RF, now available for pre-order, is the first adapter to convert manual-focus Leica M-mount lenses into autofocus primes for Canon EOS R Series mirrorless cameras. Priced at $399, it leverages an electronic helical drive system to physically move the lens for focus, compatible with Canon’s Dual Pixel AF, eye tracking, and subject detection modes. This innovation addresses a long-standing limitation: Canon’s RF mount has historically excluded third-party full-frame autofocus lenses, leaving photographers reliant on adapters with limited functionality.
Technical Innovation: How the M2RF Works
The M2RF’s core innovation lies in its motorized helicoid system, which shifts the lens elements rather than relying on in-lens mechanics. This approach allows it to work with non-Leica M-mount lenses, including Voigtländer and Zeiss optics, as well as vintage M42 glass via additional adapters. The adapter supports a 4.5mm extension, reducing the minimum focusing distance and enabling close-up photography without external accessories. It also includes a four-step aperture lever to sync the camera’s display with the lens’s actual aperture, alongside EXIF logging for up to four lenses.
According to PetaPixel, the M2RF’s design ensures compatibility with both full-frame and APS-C Canon RF bodies. The adapter’s firmware is upgradable via USB Type-C, with Megadap emphasizing support for macOS and Windows. A key limitation, however, is its 500g weight cap for attached lenses, as heavier optics may strain the motor and mount.
Build Quality and User Experience
The M2RF’s premium build, highlighted by black anodized aluminum and silver matte nickel electroplating, is described as “first-class” by Digital Camera World. Its custom coreless motor, dual-hall sensors, and optical focusing system deliver steady and precise control,
while the AF/MF toggle and macro mode (activated by a double-tap) enhance usability.
Performance and Compatibility
Despite its capabilities, the M2RF does not support in-body image stabilization (IBIS) for heavier lenses, a feature noted by Photo Review. However, it fully integrates with Canon’s IBIS for lighter optics, improving handheld stability. The adapter’s firmware updates, enabled via Megadap’s software, aim to address future compatibility needs.
Market Position and Availability
Priced at $399, the M2RF competes with other cross-mount adapters like the Megadap ETZ21 Pro+ (Sony E to Nikon Z) at $249 and the EFTZ21 (Canon EF to Nikon Z) at $299. The adapter is available through Megadap’s official store and authorized resellers, with shipping expected to commence shortly.
Photographers seeking to leverage manual-focus lenses with modern autofocus features now have a dedicated solution. As Canon’s RF ecosystem continues to evolve, adapters like the M2RF bridge the gap between vintage optics and contemporary technology—albeit with clear boundaries.
Worth a look
