Metabones EF-BMPCC4K T Speed Booster Ultra 0.71x rear This one has a decent

This one has a decent amount of cosmetic wear

This is an ultrawide manual focus lens with low dispersion and aspherical lens elements for excellent image correction

The Nikon 400mm f3

and some weather resistance for

but it makes a perfectly serviceable short telephoto/portrait lens

Metabones EF-BMPCC4K T Speed Booster Ultra 0.71x rear This one has a decentThe Metabones 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 extra stop 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