The new Metabones PL-E T CINE Speed booster ULTRA was recently announced. It uses special materials and allows you to mount PL (Positive lock) full-frame cinema lenses on E-mount Sony cameras and X-mount FUJIFILM cameras.
The new Metabones PL-E T CINE Speed Booster ULTRA features a new 5-element/4-group optical design with ultra-high index tantalum-based optical glass, which should improve corner sharpness, distortion, and reduce vignetting.
Just like the original Speed Booster, it reduces crop factor by 0.71x. Given the standard crop factor of 1.5 of most APS-C/Super35 cameras, using the new Speed Booster will result in having almost no crop at all (1.5 x 0.71 = 1.065). Remember that Speed Boosters are designed to only cover an APS-C/Super35 image circle, so on full-frame camera bodies (A7 series, NEX-VG900) the camera needs to be in “APS-C/Super35” capture mode.