Metabones Nikon G to X-mount Speed Booster ULTRA 0.71x Sony CP-R10 J-Arm (for GoPro)

J-Arm (for GoPro)

Large aperture standard zoom lens with a minimum focal length of 17mm

and internal DCI/UHD 4K30 video recording

Europe CE Version**

with no OLPF

Metabones Nikon G to X-mount Speed Booster ULTRA 0.71x Sony CP-R10 J-Arm (for GoPro)Metabones Nikon G to X mount Speed Booster ULTRA 0. 71x New optical design: advanced 5 element 4 group optical design incorporating ultra high index tanatalum based optical glass to achieve extraordinary optical performance with improved corner sharpness, distortion and reduced vignetting. Like the revolutionary original Metabones Speed Booster announced in January 2013, the Speed Booster ULTRA has a magnification of 0. 71x, and so it effectively