Who Owns Canon EOS R System?

Canon announced the EOS R System on September 5, 2018, at a global launch event. The first camera, the EOS R, was a 30.3-megapixel full-frame mirrorless body that introduced the RF mount. The RF mount retained the same 54mm inner diameter as the legacy EF mount but reduced the flange distance from 44mm to 20mm, enabling new optical designs with faster apertures and improved edge-to-edge sharpness. Canon launched the system with four RF lenses: the RF 28-70mm f/2L USM, RF 50mm f/1.2L USM, RF 24-105mm f/4L IS USM, and RF 35mm f/1.8 Macro IS STM.

The EOS R was followed by the entry-level EOS RP in March 2019, a lighter and more affordable full-frame body aimed at enthusiasts upgrading from APS-C systems. These first two cameras established the RF mount but were criticized for limited burst speeds and a single card slot. Canon addressed these concerns in subsequent models.

In July 2020, Canon released the EOS R5 and EOS R6 simultaneously. The R5 was a 45-megapixel body with 8K video recording, internal 4K oversampling, and 20 frames per second burst shooting. The R6 offered 20 megapixels with similar autofocus and burst capabilities at a lower price point. The R5 became the mirrorless successor to Canon's celebrated 5D DSLR series. Both cameras featured Canon's Dual Pixel CMOS autofocus II system, which set a new standard for subject tracking and eye detection.

The EOS R3 followed in September 2021, targeting professional sports and wildlife photographers. The R3 introduced a 24.1-megapixel stacked sensor, eye-controlled autofocus, and 30 frames per second electronic shutter burst. At $5,999, it sat below the flagship 1-series price tier but above the R5. Canon also released the EOS R6 Mark II in November 2022, refining the R6 with a 24.2-megapixel sensor, 40 frames per second electronic burst, and improved video capabilities.

The EOS R8 arrived in April 2023 as a compact entry-level full-frame body, replacing the RP in the lineup. It used the same 24.2-megapixel sensor as the R6 Mark II in a smaller body without in-body image stabilization. Canon also expanded the APS-C RF-mount lineup with the EOS R7, R10, and R50, using a cropped sensor variant of the RF mount.

July 2024 marked the most significant EOS R launch event since the system's debut. Canon announced the EOS R1 and EOS R5 Mark II simultaneously. The R1 is the first mirrorless camera to carry the 1-series designation, Canon's flagship tier reserved for professional photojournalism and sports bodies. It features a 24.2-megapixel stacked sensor, 40 frames per second burst, 6K 60p RAW video, and Canon's new Accelerated Capture platform with deep learning autofocus. The R5 Mark II upgraded the original R5 with a stacked sensor, 30 frames per second RAW burst, 8K 60p RAW Light video, and pre-continuous shooting capture.

The EOS R6 Mark III launched in November 2025 with a 32.5-megapixel sensor, 40 frames per second electronic burst, 7K RAW video, and 8.5 stops of in-body image stabilization. It became a strong seller in Japan and solidified Canon's market leadership in the interchangeable-lens camera category.

As of August 2026, the EOS R System includes the R1, R3, R5 Mark II, R6 Mark III, R8, and several APS-C models. The RF lens ecosystem has grown to over 40 native lenses, including professional L-series zooms and primes, compact STM lenses for enthusiasts, and specialized optics like the RF 1200mm f/8L IS USM. Canon also offers three EF-to-RF mount adapters that maintain full functionality with the legacy EF lens catalog, which exceeds 130 million units in circulation.