Metabones Canon EF to BMCC T Speed Booster (Black Matt)

Key Features Canon EF Lens to Blackmagic MFT Mount Increases Lens Speed by 1 1/3 Stop Increases Angle of View by 0.64x Reduces 35mm Equivalent Crop to 1.53x Description Specifically designed to work with the Blackmagic Cinema Camera with Micro 4/3 mount, the Canon EF Lens to Blackmagic 2.5k Cinema Camera T Speed Booster from Metabones corrects your full frame Canon EF mount lens to work on the smaller sized sensor of your BMCC by shrinking the image circle of the lens to fit on the BMCC's sensor. The net effect of this is to cancel out the crop factor to the image usually experienced when using a full frame lens on a smaller sized sensor, and to increase the effective speed of the lens by more than a stop. This adapter makes your lens 0.64x wider, and increases the maximum aperture by one and a third stops, as opposed to the standard Metabones MFT adapter that effectively widens the lens by 0.71x and increase the maximum f-stop by one stop. This adapter adjusts the crop factor of you