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

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.

• • • Arri PL Lens to Sony E-Mount camera/ camcorders
    • Aluminum Alloy and Brass Construction with Chromium Plating
    • Felt material flocked Interior to reduce internal reflection
    • Satin Surface Finish
    • Detachable Arca-Type Tripod Foot, and compatible with Metabones Mount-Rod Support Kit (also compatible with Arca Swiss, Markins, and Photo Clam ball heads)

• Design for attaching full-frame PL Prime Lens to Sony E-mount cameras/camcorders
• Increase maximum aperture by 1 stop.
• Increase MTF.
• Makes lens 0.71x wider.
• Advanced 5-element/4-group optical design incorporating ultra-high index tantalum-based optical glass by Caldwell Photographic in the USA (patent granted).
• Positive-lock PL lens mount.
• Felt material flocked inside the opening to reduce internal reflection.
• Compatible with Sony FS7 Mark II camera.
• The tripod foot is detachable and compatible with Arca Swiss, Markins, Photo Clam ball heads.