An innovative solution for photographers and videographers, the Canon EF Lens to Sony E Mount T CINE Speed Booster ULTRA 0.71x Adapter (5th Generation) is a high-quality, durable, and versatile tool. This compact adapter is designed to convert Canon EF lenses to Sony E mounts, enabling seamless compatibility with Sony E-mount cameras. The adapter boasts an advanced 5-element/4-group optical design that incorporates ultra-high index tantalum-based optical glass. This innovative design ensures extraordinary optical performance, delivering improved corner sharpness, reduced distortion, and less vignetting. The Speed Booster ULTRA has a magnification of 0.71x, effectively reducing 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. This feature enhances the low-light performance of your lenses, making it an ideal choice for those working in challenging lighting conditions. The adapter is well-corrected for use with virtually all full-frame SLR lenses, regardless of exit pupil distance. It performs exceptionally 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. The adapter also features a new positive-lock EF lens mount and a rubber gasket that protects the E-mount connection from dust and moisture. The interior of the adapter is flocked with felt material to reduce internal reflection. On the electr