RF Mount Compatible with RF Lenses and EF/EF-S Lenses*.

Compatible with EF/EF-S Lenses*
Whether you’re purchasing your first EOS camera or your fifth, the EOS R camera is designed to integrate smoothly into existing EOS systems. Engineered to work seamlessly with RF lenses, it maintains complete compatibility with EF and EF-S lenses by using one of three optional Mount Adapters. When using EF-S lenses, the EOS R even crops automatically to reflect the APS-C sized sensor the lenses are designed for. (* Optional Mount Adapter EF-EOS R is required when using EF/EF-S lenses with an EOS R camera.)

54mm Large Diameter and Short Back Focus
The RF mount on the EOS R camera has a large, 54mm internal diameter that enables impressive handling and provides increased flexibility for lens design. And thanks to the camera’s mirrorless design, the lens’s rear element can be much closer to the image plane. This reduced back focus distance, combined with the RF mount’s 54mm diameter, helps facilitate lenses of stellar optical quality and stunning performance while enabling innovative compact camera and lens designs.

20mm Flange Focal Distance with Robustness for Professional Use
All RF lenses feature a 20mm flange focal distance, which is the distance from the lens mount to the surface of the image sensor. This flange focal distance balances the benefits of short back focus with the engineering requirements necessary for mount stability. Accordingly, the RF mount’s flange focal distance ensures excellent optical performance while maintaining the mount rigidity and camera durability necessary for real-world operation.

12 Pins for Quickly Communicating Large Amounts of Information

Variety of Mount Adapter Options for Expanded Compatibility with EF/EF-S Lenses

30.3 Megapixel Full-frame CMOS Sensor
The EOS R camera features a Canon-developed and produced 35mm full-frame CMOS sensor with approx. 30.3 effective megapixels. It employs the DIGIC 8 Image Processor to enhance the speed of operations across the board. This means fast, efficient performance and phenomenal image quality for big prints, impressive 4K video and more.

• ISO 40000
• Digital Lens Optimizer
• Dual Pixel CMOS AF with 5,655 Manually Selectable AF Points**.
• High-speed Focusing in 0.05 sec.***
• AF Area Coverage of Approx. 88% x 100%^
• AF Points and AF Area
• EV -6^^ Low-light Autofocus
• f/8 and f/11 Compatible in All AF Areas
• Variety of AF Modes including Eye Detection AF
• Touch and Drag AF
• Focus Peaking
• Dual Pixel Focus Guide
• 4K 30p with Canon Log and 10-bit 4:2:2 HDMI Output.
• Headphone Jack
• Microphone Input
• 4K IPB/ALL-I MP4 H.264
• Built-in EVF with 3.69 Million Dots, Vari-angle Touchscreen LCD and Dot-matrix LCD Panel.
• 0.5-type OLED EVF with Approx. 3.69 Million Dots
• Vari-angle Touchscreen LCD
• Dot-matrix LCD Panel
• Sophistication in a Lightweight, Compact Size.
• Lens Balance