LensRegain Canon EF to Micro Four Thirds Lens Mount Adapter
Aputure DEC LensRegain is both a focal reducer(Speedbooster), Lens adapter, wireless follow focus, wireless aperture control and start/stop recording.
0.75x Magnification, Super 35mm View. When a Canon EF 50mm lens is attached to a MFT camera body, with the simple attachment of the DEC LenRegain, your MFT camera will produce images like those from industry-standard Super 35mm cameras.
In terms of exposure, the DEC LensRegain also adds to your maximum aperture by one stop of light. That means your f/1.4 lens will work like that of an f/1.0 lens. With this advantage, a lower ISO can be set in low light shooting, and a higher shutter speed can be set while still maintaining the proper exposure. To more accurately determine exposure in relation to this additional stop, the new T-stop is also displayed on the DEC LensRegain’s OLED screen.