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Metabones Nikon G to BMCC Speed Booster (Black Matt)

Nikon G to BMCC Micro 4/3

Metabones Nikon G to BMCC Speed Booster (Black Matt)

Metabones Nikon G to BMCC Speed Booster (Black Matt)

Nikon G to BMCC Micro 4/3

SKU: MB_SPNFG-BMCC-BM1

Cat no: 9102

  • Makes lens 0.64x wider
  • Click-less manual G aperture ring
  • Compatible to both Nikkor G lens & F lens
Price match

Estimated Delivery 7 to 10 days

£401.50 (ex vat) £481.80 (incl vat)

Metabones Nikon G to BMCC Speed Booster (Black Matt)


Nikon-G/F to Micro-4/3 mount Speed BoosterTM adapters designed exclusively for the Blackmagic 2.5k Cinema Camera (BMCC). Note that the new Speed Boosters will only attach to Blackmagic cameras equipped with a Micro-4/3 mount. They cannot be attached to standard Micro 4/3 cameras.

The new 0.64x Speed Booster reduces the full-frame crop factor of the BMCC from 2.39x to 1.53x, thus effectively transforming it into a Super-35 format cine camera. In addition, the speed of any attached lens is increased by 11/3 stops, with a maximum output aperture of f/0.80. For example, a 50mm f/1.2 becomes a 32mm f/0.80, and Sigma’s new 18-35mm f/1.8 will become an 11.5-22.5mm f/1.1.

Key Features

  • Industry's best aperture ring covers a 8-stop range with half-stop markings, clearly indicating actual number of f-stops. No more guesswork! (Patent pending).
  • Compatible to both Nikkor G lens & F lens (include non-AI & AI lens mounts).
  • Increase maximum aperture by 11/3 stop. (with a maximum output aperture of f/0.80)
  • Increase MTF.
  • Makes lens 0.64x wider.
  • Click-less manual G aperture ring.
  • Optics designed by Caldwell Photographic in the USA (patent pending).
  • The tripod foot is detachable and compatible with Arca Swiss, Markins, Photo cam ball heads.

Tips: Before mounting your lens to the adaptor, please make sure that the f-stop of aperture ring on the adaptor is turned to "7" (i.e. mounting your lens to the adaptor while only the aperture ring in the adaptor is full closed.).

Remark: This mount is manual aperture control. It does NOT support electronic aperture control.

Incompatible Lenses

  • Nikkor 2.1cm f4
  • 20/2.8 AI-S 

Product Specification

Model Code: MB_SPNFG-BMCC-BM1
Colour: Black Matt
Magnification: 0.64x
Crop Factor with BMCC: 1.53x
Maximum Output Aperture: f/0.80 (with f/1.2 lens attached)
Rectilinear Distortion: Lens Elements/Groups: 6/4
Length Reduction: 5.7 mm
Camera Mount: Blackmagic Micro 4/3 only
Lens Mounts: Nikon F
Lens Compatibility: Both FX and DX format lenses can be used
Special Features: Improved long-throw clickless Nikon G aperture ring
Dimensions: 174 mm x 66 mm x 33 mm
Weight: 177 grams
Tripod Mount: Robust removable type with Arca Swiss compatibility

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