- Nikon F mount lens to Blackmagic Design cameras with M43 mount, specific for BMPCC4K.
- Compatible with both Nikkor G lens & F lens (include non-AI & AI lens mounts).
- Patented 6-element/4-group optical design by Caldwell Photographic in the USA.
- Increase maximum aperture by 1-stop. (with a maximum output aperture of f/0.9).
- Increase MTF.
- Makes lens 0.71x wider.
- Industry’s best aperture clickless ring covers an 8-stop range marking, clearly indicating actual number off-stops. No more guesswork. (Patent granted).
- Rubber gasket protects M43 mount connection from dust and moisture.
- Aluminum alloy and brass construction with chromium plating.
- Satin surface finish.
- Detachable tripod foot compatible with Arca Swiss Style ball head, such as Markins and Photo Clam or attach to quick release plate by a 1/4″-20 screw.
- The tripod foot is tailor-made to match the exact height as the BMPCC4K camera body.
SKU: MBN-MB_SPNFG-m43-BM4
Metabones Canon EF Lens to Blackmagic 4K T Speed Booster ULTRA 0.71x 
