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Parameters Sony a7R IIIA
Canon EOS R6 Mark III
Main features
Type SLR-style mirrorless SLR-style mirrorless
Connectivity USB 3.2 Gen 1, HDMI, Wi-Fi (b/g/n), NFC USB 3.2 Gen 2, HDMI, Wi-Fi (b/g/n)
Storage types Two SD/SDHC/SDXC slots (UHS-II support on one) 1x CFexpress Type B, 1x UHS-II SD
Lens mount Sony E Canon RF
Focal length multiplier 1× 1×
Sensor
Max resolution 7952 x 5304 6960 x 4640
Effective pixels, Mp 42 megapixels
Sensor type BSI-CMOS CMOS
Sensor size Full frame (35.9 x 24 mm) Full frame (35.9 x 23.9 mm)
Sensivity, ISO Auto, 100-32000 (expands to 50-102400) Yes, 100-102400 (expands to 204800)
Processor Bionz X Digic X
Color Depth, bit 42 42
Image stabilisation Sensor-shift Sensor-shift
Screen / viewfinder
Screen size 3″ 3″
Screen resolution 2,360,000 1,620,000
Touch screen Yes Yes
Screen type TFT LCD TFT LCD
Live view Yes Yes
Viewfinder type Electronic Electronic
Viewfinder coverage 100% 100%
Viewfinder magnification 0.78× 0.76×
Viewfinder resolution 3,686,400 3,690,000
Photography features
Format JPEG, RAW JPEG, RAW
Shutter speed 30 - 1/8000 sec 30 - 1/8000 sec
Continuous drive 10 fps 40 fps
Manual exposure mode Yes Yes
Built-in flash No No
Videography features
Format MPEG-4, AVCHD, XAVC S MPEG-4, H.264, H.265, Canon Cinema Raw, Canon Cinema Raw Light
Focus
Number of focus points 399 4897
Autofocus Yes Yes
Full time manual Yes Yes
Focus method Contrast Detect (sensor), Phase Detect, Multi-area, Center, Selective single-point, Tracking, Single, Continuous, Touch, Face Detection, Live View Phase Detect, Multi-area, Center, Selective single-point, Tracking, Single, Continuous, Touch, Face Detection, Live View
Physical
Battery life, shots 650
Environmentally sealed Yes Yes
Weight (inc. batteries), g 657 g (1.45 lb / 23.17 oz) 699 g (1.54 lb / 24.66 oz)
Dimensions 127 x 96 x 74 mm (5 x 3.78 x 2.91″) 138 x 98 x 88 mm (5.43 x 3.86 x 3.46″)
Hidden parameters
Camera signatures Sony a7R IIIA Canon EOS R6 Mark III