Speed Booster by Metabones
Speed Booster Speed Booster increase the brightness of your lens. The Speed Booster by Metabones increase the brightness of your lens in one Stop. Mounted between a mirrorless camera and a SLR lens, Speed Booster™ increases maximum aperture by 1 stop, so your f/2.0 lens becomes an f/1.4 lenses and also increases MFT and makes lens wider by a […]
