DUAL CAMERA COMPARISON ENGINE:Side-by-side optical sensor, autofocus, IBIS, and codec matrix with automated win detection
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Canon EOS 5D Mark III vs Canon EOS R5 C

Direct specification breakdown comparing Canon's 22.3MP Canon EF-mount body against Canon's 45MP Canon RF-mount body.

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Canon EOS 5D Mark III Advantages1 Spec Wins
  • ✓Longer CIPA Battery Endurance (950shots vs 350shots)
Canon EOS R5 C Advantages6 Spec Wins
  • ✓Higher Sensor Resolution (45MP vs 22.3MP)
  • ✓More Phase-Detect AF Points (1053pts vs 61pts)
  • ✓Faster Continuous Burst (20fps vs 6fps)
  • ✓Faster Mechanical Shutter (14fps vs 6fps)
  • ✓Faster Electronic Shutter (20fps vs 6fps)
  • ✓Lighter Body (770g vs 950g)
01

Sensor & Image Quality

Effective megapixel count, sensor readout architecture, and lens mount

Effective Sensor Resolution
Canon EOS 5D Mark III22.3 MP
Canon EOS R5 C45 MP
✓ +22.7 MP
Sensor Architecture & Type
Canon EOS 5D Mark IIIFull Frame CMOS
Canon EOS R5 CFull Frame Dual Pixel CMOS
Physical Sensor Dimensions
Canon EOS 5D Mark III36.0 × 24.0 mm
Canon EOS R5 C36.0 × 24.0 mm
Aspect Ratios
Canon EOS 5D Mark III3:2 (Native), 4:3, 16:9, 1:1
Canon EOS R5 C3:2 (Native), 4:3, 16:9, 1:1
Native Lens Mount
Canon EOS 5D Mark IIICanon EF
Canon EOS R5 CCanon RF
Image Processor
Canon EOS 5D Mark IIIDIGIC 5+
Canon EOS R5 CDIGIC X
02

Autofocus & Shooting Speed

Phase-detect AF points, neural subject tracking, burst speeds, and IBIS stops

Autofocus System
Canon EOS 5D Mark III61-Point High Density Reticular AF
Canon EOS R5 CDual Pixel CMOS AF II
Phase-Detect AF Points / Zones
Canon EOS 5D Mark III61 points
Canon EOS R5 C1,053 points
✓ +992 pts
AI Subject Detection
Canon EOS 5D Mark IIIDeep Learning Subject Recognition (Human, Animals, Vehicles, Aircraft)
Canon EOS R5 CDeep Learning Subject Recognition (Human, Animals, Vehicles, Aircraft)
Max Continuous Burst Speed
Canon EOS 5D Mark III6 fps
Canon EOS R5 C20 fps
✓ +14 fps
Mechanical Shutter Burst
Canon EOS 5D Mark III6 fps
Canon EOS R5 C14 fps
✓ +8 fps
Electronic Shutter Burst
Canon EOS 5D Mark III6 fps
Canon EOS R5 C20 fps
✓ +14 fps
Maximum Shutter Speed
Canon EOS 5D Mark III1/8000s (Mechanical) / 1/32000s (Electronic)
Canon EOS R5 C1/8000s (Mechanical) / 1/32000s (Electronic)
In-Body Image Stabilization (IBIS)
Canon EOS 5D Mark IIINo Internal IBIS
Canon EOS R5 CNo Internal IBIS
03

Video Capabilities

Maximum recording resolution, frame rate capabilities, internal bit depth, and I/O

Max Video Resolution
Canon EOS 5D Mark III1080p30 ALL-I
Canon EOS R5 C8K60 Cinema RAW Light
Supported Frame Rates
Canon EOS 5D Mark III1080p30 ALL-I at maximum sustained frame rate
Canon EOS R5 C8K60 Cinema RAW Light at maximum sustained frame rate
Color Bit Depth & Sampling
Canon EOS 5D Mark III8-bit 4:2:0 H.264
Canon EOS R5 C12-bit RAW / 10-bit 4:2:2 XF-AVC
Log Gamma & Cinema Profiles
Canon EOS 5D Mark IIIFull Cinema Log Profile Suite
Canon EOS R5 CFull Cinema Log Profile Suite
Audio & HDMI I/O
Canon EOS 5D Mark III3.5mm Stereo Microphone, 3.5mm Headphone Monitor, Clean HDMI Output
Canon EOS R5 C3.5mm Stereo Microphone, 3.5mm Headphone Monitor, Clean HDMI Output
04

Hardware, Ergonomics & Pricing

Memory card slots, EVF optics, CIPA battery rating, weight, dimensions, and price

Memory Card Slots
Canon EOS 5D Mark III1x CompactFlash + 1x SD UHS-I
Canon EOS R5 C1x CFexpress Type B + 1x SD UHS-II
Electronic Viewfinder (EVF)
Canon EOS 5D Mark IIIOptical Viewfinder (100% coverage)
Canon EOS R5 C5.76M-dot OLED EVF (120fps)
Battery Life (CIPA Rated)
Canon EOS 5D Mark III950 shots
✓ +600 shots
Canon EOS R5 C350 shots
Body Weight (with Battery & Card)
Canon EOS 5D Mark III950 g
Canon EOS R5 C770 g
✓ 180g Lighter
Dimensions (W × H × D)
Canon EOS 5D Mark III152.0 × 116.4 × 76.4 mm
Canon EOS R5 C142.0 × 101.0 × 111.0 mm
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