The Metabones Olympus OM to Micro Four Thirds Speed Booster is a reliable lens adapter that is made of brass and plated with chromium. This camera speed booster extends angle of view by 0.71x and gives the camera a one f/stop maximum aperture increase. Sporting a matte black treatment, this Metabones product has a built-in Wide-Open button for easier focusing. It also increases Modulation Transfer Function. This camera lens accessory comes with a detachable tripod foot and shows EXIF data display. Product Features in Detail Made of brass and plated with chromium Ensures that the speed booster is lightweight and more resistant to wear and tear Extend angle of view by 0.71x Gives a wider register in the camera frame to render more detailed images One f/stop maximum aperture increase Improves camera's performance during low-light settings and creates a shallow depth of field Matte black treatment Minimizes reflections in the speed booster's interior to boost the lens' optical quality Built-in Wide-Open button Makes focusing easier when this button is pressed Increases Modulation Transfer Function For a more accurate transfer of details from the subject to the lens for sharper photos Detachable tripod foot Compatible with ball heads from Arca Swiss, Photo Clam, and Markins among others EXIF Data Display Shows information regarding lens type, aperture, and focal length Precise fit into the lens The lens is locked tight and will not slip or get loose Aperture diaphragm integration Settings for aperture are automatically chosen in S or P exposure modes and manually selected on M or A modes.