Key Features & Usage Notes:

Dedicated for Macro Photography: This adapter is specifically designed for close-up shooting. Please note that it does not support focusing to infinity.

Full Manual Control: As a purely mechanical adapter, it features no electronic connections (ROM). You must manually control the aperture directly on the lens.

Stop-Down Metering Essential: All camera automatic functions (auto diaphragm, autofocus, etc.) are unavailable. You must use stop-down mode for accurate exposure metering, as the camera body cannot control the lens aperture.

Lightweight & Durable: Crafted from high-quality aluminum, ensuring a solid fit while keeping your setup light.

Compatibility: 

Lenses: Compatible with M39/L39 (1mm pitch) screw mount lenses 

Cameras: Compatible with all LR mount cameras, including but not limited to:

LR R2, R3, R4, R5, R6, R7, R8, R9, S3.

Please note that the LR system is a discontinued SLR line, and no new models have been released.