Canon EF to BMCC mount T 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.
Here are a few examples:
|Master Lens||with Speed Booster|
|35mm equivalent focal length|
on BMPCC *
|Canon 85mm f/1.2||44.4mm f/0.90||106.1mm||extremely fast tele|
|Sigma 18-35mm f/1.8||11.52-22.4mm f/1.35||27.5-53.5mm||super fast and stunningly sharp zoom|
|Sigma 8-16mm f/4.5-5.6||5.1-10.2mm f/3.4-4.2||12.2-24.4mm||super wide zoom|
|Tokina 11-16mm f/2.8||7.0-10.2mm f/2.1||16.7-24.5mm||very fast and sharp wide-angle zoom|
|*) Based on diagonal field of view|