Metabones Leica R to Canon RF-Mount Speed Booster Ultra 0.71x Adapter with Tripod Foot (Black)

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.

Like the revolutionary original Metabones Speed Booster announced in January 2013, the Speed Booster Ultra has a magnification of 0.71x, and so it effectively reduces the crop factor of mirrorless cameras with DX-sized sensors(APS-C), such as Sony E-mount and Fujifilm 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. Thus, 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 centre all the way to the edges of the image.

Key Features:

Leica R to Canon RF-Mount Adapter

Designed for APS-C Format Cameras

Compatible with Canon C70, Red Komodo, EOS R Series

Increases Maximum Aperture by 1 Stop

Improves MTF Performance

Lens Becomes 0.71x Wider

Advanced 5-Element/4-Group Optical Design

Ultra-High Index Tantalum Optical Glass

Aluminium Alloy and Brass Construction

Chromium Plated with Satin Finish

What's in the Box:

Metabones Leica R to Canon RF-Mount Speed Booster Ultra 0.71x Adapter with Tripod Foot (Black)