You can now seamlessly adapt your Canon Ef lenses to Micro Four Thirds cameras with the high-quality and durable Canon Ef Lens to Micro Four Thirds Camera Adapter, T Cine Speed Booster Ultra 0.71x Magnification (Fifth Generation). This innovative and user-friendly adapter is designed to enhance, not degrade, the performance of your attached lens, making it a versatile addition to your photography gear.The Speed Booster Ultra m43 boasts an advanced 5-element 4-group optical design, incorporating ultra-high index tantalum-based optical glass. This design is specifically optimized for the Micro Four Thirds sensor and filter stack, achieving an unprecedented level of performance that sets a new standard for focal reducers. With a magnification of 0.71x, this adapter effectively reduces the crop factor of mirrorless Micro Four Thirds mount cameras from 2.0x to 1.4x.