VILTROX EFM2II 071x Speed Booster EF to Micro 43 Focal Reducer Booster Adapter AutoFocus for GH6 GH5M2 BMPCC 4K GH4 GH5 G100 G95 G85 OM1 EM1 EM1X EM1 iii EM5 iii EM10 iv EM10 iii

Compatibility Viltrox EFM2 II is an upgrade version of EFM2 allowing Canon EF series lenses to be used on M43 cameras such as GH4 GH5 GF6 GF1 GX1 GX7 GX85 EM5 EM10 EM10II EPL5 071x Focal Reducer Converter focal length is multiplied by 071 based on the original equivalent focal length focal length x 071 which helps enlarge 1 stop aperture AF Functions Adjustable Aperture auto focusing function increasing the lens 1 fstop and the amount of light into the virtual background better highlight the theme adjust the aperture directly from camera to control the lens actual aperture Material Design bayonets are made of metal with surface plating treatment being durable and sturdy inbuilt copper electronic contacts and IS function making focus precise and clear with 14 thread tripod foot at the bottom etc USB Firmware Upgrade Equipped with USB interface can realize software upgrade Can perfect new functions of the lens mount adapter and fix bugs according to followup upgrades