Here are the full leaked images and specs of the Canon R6III (Canon EOS R6 Mark III — B&H Photo , Amazon , Adorama , FotoKoch , Foto Erhardt , Calumet , Wex UK )

Canon EOS R6 Mark III – Technical Specifications

Image Sensor

• Type: 35.9 × 23.9 mm CMOS
• Effective pixels: Approx. 32.5 megapixels
• Total pixels: Approx. 34.2 megapixels
• Aspect ratio: 3:2
• Low-pass filter: Built-in/fixed
• Sensor cleaning: EOS integrated cleaning system
• Colour filter: RGB primary colour
• Sensor-shift IS: Up to 8.5 stops advantage at centre and 7.5 stops at edges (depending on lens)

Image Processor

• Type: DIGIC X

Lens

• Mount: RF / RF-S (compatible with EF & EF-S via mount adapter)
• Focal length: 1.0× with RF lenses, 1.6× with RF-S lenses

Focusing

• Type: Dual Pixel CMOS AF II
• AF system points: 100 % coverage (horizontal & vertical) in Whole Area AF mode
• AF working range: EV −6.5 – 21 (at 23 °C, ISO 100)
• AF modes: One Shot AF, Servo AF, AI Focus AF
• AF methods: Automatic selection from 1053 AF areas
• AF point selection: 1-point AF, AF point expansion (4 or 8 points), Flexible Zone AF (3 sizes), Whole Area AF
• AF tracking: Humans (eye/face/head/body), Animals (dogs, cats, birds, horses), Vehicles (cars, motorbikes)
• AF lock: When shutter button half-pressed / assigned button
• AF assist beam: Built-in LED or external flash
• Manual focus: Via lens or menu selection
• Focus bracketing: Supported with in-camera depth composition (JPEG/HEIF/RAW/CRAW)

Exposure Control

• Metering modes: Real-time image-sensor 384-zone metering (Evaluative, Partial, Spot, Centre-weighted average)
• Metering brightness range: EV 3 – 20 (at 23 °C, ISO 100, evaluative)
• AE lock: Auto or manual button in P, Av, Tv, M modes
• Exposure compensation: ± 3 EV (1/3 stop increments, AEB up to 7 frames)
• Anti-flicker shooting: Yes (100 Hz / 120 Hz)

ISO Sensitivity

• ISO range: 100 – 102 400 (expandable to 204 800) / Auto ISO 100 – 25 600

Shutter

• Type: Electronic & mechanical focal-plane shutter
• Speed: 1/8000 – 30 s (½ or ⅓ stop increments), Bulb; Electronic up to 1/16000 s
• Release lag: Approx. 50 ms

White Balance

• AWB (ambience priority / white priority) + Presets (Daylight, Shade, Cloudy, Tungsten, Fluorescent, Flash, Custom)
• White balance compensation: Blue/Amber ±9, Magenta/Green ±9
• Custom WB: 4 settings (still & video)
• WB bracketing: 3, 5 or 7 frames / Selectable Blue/Amber or Magenta/Green bias

Viewfinder

• Type: 0.5-inch OLED colour EVF
• Resolution: 3.69 million dots
• Refresh rate: Up to 120 fps
• Magnification: Approx. 0.76×
• Coverage: Approx. 100 %
• Eyepoint: 23 mm (from eyepiece lens centre)
• Dioptre correction: −4 to +2 m⁻¹
• Brightness: Auto or manual (1–5 levels)
• Exposure simulation: On / Off toggle
• Display styles: Display 1 / Display 2 (with black border option)
• Colour tone modes: Warm / Standard / Cool 1 / Cool 2
• Performance: Smooth (119.8 fps) / Power saving (59.94 fps)

Sensor / Display Performance

• Exposure simulation for still photo shooting: Yes

via CanonRumors