Made of premium copper and aluminum alloy, solid and durable. Full manual operation requires manual control of aperture and focus. Ensures infinity focus. Compatible with Leica M lenses. Designed for FX-Pro1 mirrorless camera body. Features: - Made of premium copper and aluminum alloy, solid and durable - Full manual operation, aperture and focus must be manually adjusted - Ensures infinity focus - Compatible with Leica M lenses - Fits FX-Pro1 mirrorless camera body Specifications: - Material: Alloy - Model: LM-FX - Color: Black Package List: - 1 x Lens Adapter Ring Note: When connecting the adapter ring to the camera for the first time, enable the "Release Shutter Without Lens" setting in the camera menu; otherwise, the lens may not be recognized.