- Title: Focal Reducers: Speed Booster, Lens Turbo and Light Cannon
- Date posted:
- Last edited:
- Keywords: focal reducer, micro four thirds, micro4/3, metabones, fotodiox, mitakon, zhongyi, speedbooster, lens turbo, light cannon
- URL: http://rubenkremer.nl/2013/11/26/focal-reducers-speedbooster-lens-turbo-and-light-cannon/
[updated] A while back there was a buzz about this new optical adapter from Metabones: the Speedbooster. This small and magical thing would increase the Field of View (FoV) (and thus decrease the effective crop factor) and sharpness of your lenses, as well as give you an extra F-stop of light. Recently I've seen a misuse of the brandname Speedbooster as a denomer to describe all of these optical adapters. Let's get this straight: these are called Focal Reducers.