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

• • • • Canon EF mount lens to Blackmagic Design cameras with M43 mount, specific for BMPCC4K.
      • Increase maximum aperture by 1-stop. (with a maximum output aperture of f/0.9).
      • Increase MTF.
      • Makes lens 0.71x wider.
      • Patented 6-element/4-group optical design by Caldwell Photographic in the USA.

• 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.

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.