Metabones Speed Booster ULTRA 0.71x M43 Mirrorless Camera

  • Metabones Speed Booster ULTRA m43 Specifications:
  • Model Code:  MB_SPEF-m43-BT4 (Canon EF mount), MB_SPNFG-m43-BM3 (Nikon F/G mount)
  • Color: Black Satin exterior; Black Matte interior
  • Magnification:  0.71x
  • Crop Factor for Full Micro Four Thirds format:  1.42x
  • Crop Factor with GH4 in Cinema 4k (4096 x 2160) Video Mode:  1.66x
  • Maximum Output Aperture:  f/0.90 (with f/1.2 lens attached)
  • Rectilinear Distortion:  < 0.7%
  • Lens Elements/Groups:  5/4
  • Length Reduction:  5.5 mm
  • Camera Mount:  Micro Four Thirds
  • Compatibility:  All Micro Four Thirds cameras are supported
  • Image Format:  17.3 mm x 13.0 mm (full Micro Four Thirds format)
  • Lens Mounts:  Canon EF and Nikon F/G at release; other mounts to follow in the near future

Lens Compatibility:Any full-frame (36 mm x 24 mm format) SLR lens with the appropriate mount can be used.  DX format lenses can be mounted but may result in vignetting when the full Micro Four Thirds format is used, depending on the lens.  DX lenses are fully supported when used on the Panasonic GH4 in Cinema 4k mode, and will function without abnormal vignetting.  Canon EF-S lenses are not supported, but third-party EF-mount APS-C lenses can be mounted and will have full electronic functionality.

Read More: Metabones Website