Metabones EF-BMPCC4K T Speed Booster Ultra 0.71x what kind of battery_Lithium not in the sense that

not in the sense that it'll get you into the polo club's VIP room if the doorman catches a glimpse (this is why people buy Leicas)

If you are looking for a fun rotating digital camera this might be the one for you

8 constant aperture and excellent image quality

It's not light or inconspicuous

Metabones EF-BMPCC4K T Speed Booster Ultra 0.71x what kind of battery_Lithium not in the sense thatThe 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