Blackmagic Design Blackmagic URSA Mini Pro B4 Mount (NOT compatible with URSA Mini Pro 12K)

• Canon FD and FL Lens to Leica/ Panasonic/ Sigma L-mount cameras ;
• Aluminum Alloy and Brass Construction with Chromium Plating ;
• Felt material flocked Interior to reduce internal reflection ;
• Rubber gasket protects the L-mount connection from dust and moisture.
• Satin Surface Finish ;
• Detachable Arca-Type tripod foot compatible with Arca Swiss, Markins, and Photo Clam ball heads(clamp directly or attach to quick release plate by a 1/4″-20 screw).

• Both camera-side and lens-side of the adapter are made of brass, precision-machined and plated with chromium.
• Satin surface finish – just like your OEM lens and camera mounts.
• Precise fit and solid connection – lens has no play, gap or wiggling when mounted on adapter and no adjustments are required to fit your lens.
• Designed to reach infinity focus while maintaining the correct registration distance required to maintain optical quality of CRC lenses or lenses with floating elements.

To clear up any potential confusion, this is NOT Sony Alpha, but Alpa of Switzerland. You will most likely be using the Kern Macro Switar 50mm f/1.8 or f/1.9 apochromat lens on this adapter.