Canon Mount Adapter EF-EOS R 0.71x

Professional EF to RF Lens Adaptation

The Canon Mount Adapter EF-EOS R 0.71x is a high-performance optical converter designed to bridge the gap between full-frame Canon EF lenses and the RF mount Super 35mm sensor of the EOS C70. This adapter is an essential tool for filmmakers looking to leverage their existing EF glass while maximizing the capabilities of the Cinema EOS system.

Maintain Full-Frame Perspective

By utilizing a 0.71x optical magnification, this adapter effectively reduces the focal length of full-frame lenses to match the Super 35mm sensor. This allows you to maintain the original full-frame angle of view, ensuring your wide-angle lenses perform as intended without the typical crop factor associated with smaller sensors.

Enhanced Light Transmission

The advanced optical design does more than just adjust the field of view; it also increases light transmission. By concentrating the light from the full-frame lens onto the smaller sensor, the adapter provides a one-stop increase in brightness. An f/2.8 lens effectively becomes an f/2.0, offering superior low-light performance and reduced signal noise.

Seamless Electronic Communication

Maintain complete control over your optics with full electronic communication between the lens and the camera body. The adapter supports Dual Pixel CMOS AF for fast and accurate autofocus, as well as peripheral illumination and chromatic aberration correction. Real-time metadata transmission ensures F-number and focal length are displayed correctly on screen.

Rugged and Secure Construction

Built for the rigors of professional production, the adapter features a robust design. It includes dedicated locking plates that secure the unit to the EOS C70 body with four screws, providing a rock-solid connection even when using heavy telephoto EF lenses.