Lens Adapter K&F Kf06.100 — Fujifilm X-mount to Leica M, mechanical coupling

The K&F Kf06.100 mechanical lens adapter allows Leica M-mount lenses to be mounted on Fujifilm X-mount mirrorless cameras. This adapter provides a solid, physical flange connection that preserves optical alignment and enables manual aperture and focus control of rangefinder lenses on X-series bodies. It does not feature electronic contacts or autofocus, so all exposure and focusing adjustments are performed directly on the lens and camera settings.

Advantages

This metal adapter offers precise mechanical fit and reliable flange distance for consistent image quality when using Leica M lenses on Fujifilm X-mount cameras. The absence of electronic coupling keeps the optical path simple and maintains compatibility with a wide range of vintage and modern M-mount lenses. Its durable construction resists wear from frequent lens changes and ensures stable connection during handheld and tripod work.

Suitable for

• Photographers who want to use Leica M glass on Fujifilm X-series mirrorless cameras
• Manual-focus portrait, street, and documentary photography
• Creative projects employing vintage lenses for distinctive rendering and bokeh
• Adapting compact rangefinder lenses for travel and everyday shooting with X-mount bodies

Key specifications

• Mount conversion: Leica M lens to Fujifilm X camera
• Mechanical coupling only: no electronic contacts or autofocus
• Material: metal construction for durability and precise fit
• Maintains correct flange focal distance for focus to infinity when used with compatible lenses
• Compatible with manual aperture control on M-mount lenses

How to use

Attach the adapter to the camera by aligning the index marks on the adapter and the Fujifilm X-mount, then rotate until it locks into place. Mount a Leica M lens to the adapter by aligning the lens mounting mark with the adapter’s mount and rotating the lens until it secures. Set the camera to manual or aperture-priority mode as required, and use live view or focus peaking for critical focusing. Since there is no electronic communication, set ISO, shutter speed and in-camera exposure compensation directly on the camera body and aperture on the lens.

Usage recommendations

Use manual focusing aids such as focus peaking or magnified live view for accurate results, especially with fast lenses or wide apertures. Verify lens compatibility and physical clearance for lenses with protruding elements or unique designs before use. When mounting heavy lenses, support the lens rather than relying solely on the adapter to reduce strain on the camera mount.