SHOTEN LM-CR M E Leica M to Canon RF Mount Adapter

Helicoid Extension | EXIF Data Transmission | Focus Guide Support

The SHOTEN LM-CR M E is a precision-engineered mount adapter designed to mount Leica M-mount lenses onto Canon RF mirrorless cameras. Featuring electronic contacts, the adapter enables EXIF data recording and focus guide support, helping photographers achieve more accurate manual focusing while preserving lens information in image files.

A built-in 4mm helicoid extension allows you to reduce the minimum focusing distance of many Leica M lenses, making closer shooting and creative compositions possible.

This is a manual focus adapter. Autofocus is not supported.

Key Features

■ Leica M Lens to Canon RF Camera Adapter

Compatible with Leica M mount rangefinder lenses and Canon EOS R series RF mount cameras. Ideal for photographers who want to combine classic Leica optics with modern Canon mirrorless bodies.

■ Electronic Contacts with EXIF Transmission

Supports transmission of registered lens data such as focal length and maximum aperture to the camera body. Up to 10 customizable lens profiles can be edited via PC.

■ Focus Guide Support for Accurate Manual Focus

Works with the camera’s focus guide system to assist manual focusing, improving usability when shooting with manual Leica M lenses.

■ Built-in 4mm Helicoid Extension

The integrated helicoid mechanism extends up to 4mm, allowing closer focusing than the original lens design — perfect for detail shots, portraits, and creative close-ups.

■ Infinity Lock Mechanism

Equipped with an infinity lock to prevent accidental helicoid movement and maintain precise focusing alignment.

Specifications

  • Lens Mount: Leica M Mount

  • Camera Mount: Canon RF Mount

  • Type: Electronic mount adapter with helicoid

  • Extension Range: 4mm

  • Functions: EXIF recording, Focus Guide support

  • Focus Type: Manual Focus Only (MF)

Important Notes

  • This adapter does not support autofocus.

  • Do not collapse collapsible lenses while mounted on the camera to avoid damage.

  • Fitment may vary depending on lens or camera tolerances, wear, or individual variations.

  • Slight over-infinity design may be present to ensure compatibility; confirm focus position during use.

  • Compatibility with all lenses and cameras is not guaranteed. Use at your own discretion.

  • Firmware updates may expand compatibility in the future.

  • Product appearance may vary slightly depending on production batch.


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