Metabones Olympus OM to Sony E-mount Speed Booster ULTRA 0.71x II

Metabones Olympus OM to E-mount Speed Booster ULTRA 0.71x (Black Matt)

Metabones Olympus OM to Sony E-mount Speed Booster ULTRA 0.71x II is a lens adapter designed to allow Olympus OM mount lenses to be used on Sony E-mount cameras. It also incorporates a lens focal reducer that magnifies the image circle of the lens by 0.71x, which effectively reduces the focal length of the lens and increases its maximum aperture by one stop.

Sharper corners, less distortion, reduced vignetting

New optical design: Advanced 5-element/4-group optical design incorporating ultra-high index tantalum-based optical glass to achieve extraordinary optical performance with improved corner sharpness, distortion, and reduced vignetting.

The Speed Booster ULTRA has a magnification of 0.71x, so it effectively reduces the crop factor of mirrorless cameras with DX-sized sensors, such as Sony E-mount and Fuji X-mount cameras, from 1.5x to 1.07x.

However, the new ULTRA design makes very effective use of exotic materials at the furthest limit of glassmaking technology, and as a result, is well-corrected for use with virtually all full-frame SLR lenses regardless of exit pupil distance.

The Speed Booster ULTRA performs extremely well with professional-grade f/2.8 zoom lenses such as the 24-70mm f/2.8 and 70-200mm f/2.8 zooms by Canon and Nikon to produce 17-50mm f/2.0 and 50-142mm f/2.0 high-speed zooms, respectively.

Similarly, high-speed fixed focal length lenses such as a 50mm f/1.2 will be transformed into a 35.5mm f/0.9 lens with excellent contrast and resolution from the center all the way to the edges of the image.

Key Features

• Olympus OM-mount lens(not Micro Four Third) to Sony E-mount cameras ;
• Increase maximum aperture by 1 stop.
• Increase MTF.
• Makes the lens 0.71x wider.
• Advanced 5-element/4-group optical design incorporating ultra-high index tantalum-based optical glass by Caldwell Photographic in the USA (patent granted).
• Rubber gasket protects the X-mount connection from dust and moisture ;
• Satin Surface Finish ;
• Detachable Arca-Type tripod foot compatible with Arca Swiss, Markins, and Photo Clam ball heads(clamp directly or attach to quick-release plate by a 1/4″-20 screw).