Metabones Canon EF to E-mount T CINE Speed Booster Ultra (0.71x)

The Metabones Canon EF to E-mount T CINE Speed Booster Ultra (0.71x) has a magnification of 0.71x, and therefore effectively reduces the crop factor of mirrorless cameras with DX-format sensors, such as Sony E-mount and Fuji X-mount cameras, from 1.5x to 1.07x. The new Ultra design makes very effective use of exotic materials at the furthest limit of glass-making technology, and as a result is well corrected for use with virtually all full-frame SLR lenses, regardless of exit pupil distance. As a result, 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.