TheMetabones EF-BMPCC4K T Speed Booster Ultra 0.71x is a Speed Booster designed specifically for the Blackmagic Pocket Cinema Camera 4K. Takes Canon EF mount lenses and provides an extrastop of effective aperture, plus a 0.71x field of view expansion. In excellent condition, with minor cosmetic wear, clean glass, good function.

UNBELIEVABLY IMPORTANT: THIS ADAPTER IS FOR THE BLACKMAGIC POCKET CINEMA CAMERA 4K ONLY. DO NOT USE IT ON ANY OTHER CAMERA OR YOU MAY DAMAGE YOUR CAMERA (THAT’S BAD).