Lens Mount Adapter K&F KF-06.090 - Olympus Micro Four Thirds (M4/3) to Canon EF/EF-S

The K&F KF-06.090 is a mechanical lens mount adapter that allows Olympus Micro Four Thirds (M4/3) camera bodies to accept Canon EF and EF-S lenses. Constructed from metal components, the adapter restores the correct flange focal distance between Canon lenses and M4/3 mounts so that manual focusing and aperture control are possible where supported by the lens design. The adapter does not provide electronic communication between lens and camera, preserving mechanical control and a direct metal-to-metal connection for secure mounting.

Advantages

This adapter provides a durable metal build that ensures a stable and secure connection between Canon EF/EF-S lenses and Micro Four Thirds camera bodies. By maintaining correct flange distance it enables accurate manual focus and appropriate flange alignment for compatible lenses. The simple, purely mechanical design means no battery or electronic interface is required, reducing points of failure and allowing use of a wide range of legacy and modern Canon optics in manual mode.

Suitable for

• Photographers who want to use Canon EF or EF-S lenses on Olympus M4/3 mirrorless bodies
• Videographers using manual-focus cinema or stills lenses on Micro Four Thirds cameras
• Users adapting legacy Canon glass for macro, portrait, or creative manual-control work

Key specifications

• Mount conversion: Olympus Micro Four Thirds (M4/3) camera to Canon EF/EF-S lenses
• Construction: metal mounting rings for body and lens interfaces
• Functionality: purely mechanical adapter without electronic contacts
• Compatibility: supports manual focus and manual aperture control when available on the lens
• Finish: anodized or plated metal surface for wear resistance

How to use

Attach the adapter to the Micro Four Thirds camera body by aligning the adapter's body-side index with the camera mount and turning until it locks in place. Mount a Canon EF or EF-S lens to the adapter in the same manner as attaching to a native Canon body, ensuring the lens clicks securely. Because the adapter does not transmit electronic signals, set the lens to manual focus and, if applicable, use the lens aperture ring or camera exposure settings to control aperture. Check focus and exposure in the camera viewfinder or live view and make adjustments manually as needed.

Usage recommendations

Use lenses with manual aperture rings or lenses that allow stop-down metering for more convenient exposure control. For best results with older or heavy lenses, support the lens with a tripod or lens support to reduce stress on the camera mount. Regularly inspect and clean mating surfaces to maintain a secure metal-to-metal connection and avoid dust ingress during lens changes.