Metabones Speed Booster lar deg bruke Nikon EF optikk på BlackMagic Pocket Cinema Camera 4Kkamerahus og gir deg et blendertrinn større blenderåpning samtidig som den gir deg 0.71x videre brennvidde. 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.