Adapter for coupling Sony A type lenses in Fuji X type camera bodies. Increases MTF and maximum aperture by 1 stop and makes the lens 0.71 wider. Manufactured with an advanced 5-element, 4-group optical design incorporating ultra-high index tantalum optical glass for outstanding optical performance with improved corner sharpness, distortion and reduced vignetting, it also makes very effective use of advanced glass manufacturing technology and, as a result, is well corrected for use with virtually all full-frame SLR lenses, regardless of the focal length of the output flange.
With a magnification of 0.71x, it effectively reduces the cropping factor of non-mirror cameras with DX-size sensors such as Sony E-mount and Fuji X-mount cameras from 1.5x to 1.07x. It works very well with the professional-quality f/2.8 zoom lenses, such as Canon and Nikon's 24-70 mm f/2.8 and 70-200 mm f/2.8 zooms, to produce high-speed zooms of 17-50 mm f/2.0 and 50-142 mm f/2.0, respectively. Similarly, high-speed fixed focal length lenses, such as a 50mm f/1.2 lens, will be transformed into a 35.5mm f/0.9 lens with excellent contrast and resolution from the center to the edges of the image.
Both the camera side and the lens side of the adapter are made of precisely machined, chrome-plated brass. It has a precise fit and a solid connection so the lens has no slack, holes or jolts when mounted on the adapter and no adjustments are required to adapt it to your lens.