Plus, three new RF lenses.
Not much is known about the Canon EOS R3 in terms of specs, but Canon says it will join the current lineup of the EOS R full-frame mirrorless series and will "usher in a new category to the EOS R system" that will fit between the 8K EOS R5 and EOS-1D X Mark III cameras. It's said the camera will "put great emphasis on superb AF performance and speed" to match the demand for pro shooters.
The camera will tout Canon's first full-frame stacked CMOS sensor with a back-illuminated design, a sensor design similar to what we see in the Sony Alpha 1 and Nikon Z9. The new sensor is expected to produce less rolling shutter and offer continuous electronic shutter still-image shooting at speeds up to 30fps with full Dual Pixel CMOS AF and auto exposure.
The R3 will have an AF system similar to the R5 and R6 while using deep learning technology to enhance eye and body detection. Additionally, the R3 is said to have subject detection AF that offers new recognizable subjects. If we had to guess, that could be animals and birds.
The electronic viewfinder of the R3 will offer the ability to select the initial area for AF tracking by simply looking directly at the viewfinder location where you want to begin AF. With the Eye Control AF2 and Servo AF activated, the camera will focus on and track moving subjects at that location in the frame. When Face Detect + Tracking is active, the camera will continue to follow moving subjects around the entire active AF area.
The camera body is a one-piece design, integrating a vertical grip section. It will be weather- and dust-resistant equivalent to the EOS-1D series. Plus, Canon is developing a new Mobile File Transmitter application for iOS and Android devices that will be available soon.