• 35mm 864.0mm2
  • 22.3 megapixels
  • ISO 100 - 25,600
  • 4/3 224.9mm2
  • 20.3 megapixels
  • ISO 200 - 25,600
  • Detailed specifications
  • Canon EOS 5D Mark III
  • Panasonic Lumix DMC-GX8
Links
Prices: Compare Prices Compare Prices
Manufacturer URL: Manufacturer website Manufacturer website
Predecessor: Canon 5D Mark II
5D Mark II vs 5D Mark III
Panasonic GX7
GX7 vs GX8
Successor: Canon 5D Mark IV
5D Mark III vs 5D Mark IV
Panasonic GX9
GX8 vs GX9
General
Model Number: 5D Mark III GX8
Alternate Model Number(s):    
Camera Format: Pro SLR Compact System Camera
Currently Manufactured: No Yes
Retail Price: $3500.00 $1199.99
Street Price: $2,299.00 $997.99
Date Available: 2012-03-20 2015-08-15
Tripod Mount: Yes Yes
Weight: 33.5 oz (950 g)
includes batteries
17.2 oz (487 g)
includes batteries
Size: 6.0 x 4.6 x 3.0 in.
(152 x 116 x 76 mm)
5.2 x 3.1 x 2.5 in.
(133 x 78 x 63 mm)
Waterproof: No No
Waterproof Depth: n/a n/a
Image Sensor
Sensor Type: CMOS Live MOS
Sensor Manufacturer: Canon Panasonic
Effective Megapixels: 22.3 20.3
Sensor Format: 35mm 4/3
Sensor size: 864mm2 (36.00mm x 24.00mm) 224.9mm2 (17.30mm x 13.00mm)
Approximate Pixel Pitch: 6.25 microns 3.34 microns
Focal Length Multiplier: 1.0x 2.0x
Aspect Ratio: 3:2 4:3
Color Filter Type: RGBG RGBG
Anti Aliasing Filter: Fixed Fixed
Self-Cleaning: Yes Yes
Sensor shift image stabilization: No Yes
On-Sensor Phase Detect: No No
DxO Sensor Score: 81 75
DxO Color Depth Score (bits): 24.0 23.5
DxO Dynamic Range Score (evs): 11.7 12.6
DxO Maximum Effective ISO Score (iso): 2,293 806
Image Capture
Image Resolution: 5760 x 3840 (22.1 MP, 3:2),
3840 x 2560 (9.8 MP, 3:2),
2880 x 1920 (5.5 MP, 3:2),
1920 x 1280 (2.5 MP, 3:2),
720 x 480 (0.3 MP, 3:2)
5184 x 3888 (20.2 MP, 4:3),
3712 x 2784 (10.3 MP, 4:3),
2624 x 1968 (5.2 MP, 4:3),
1824 x 1368 (2.5 MP, 4:3),
5184 x 3456 (17.9 MP, 3:2),
3712 x 2480 (9.2 MP, 3:2),
2624 x 1752 (4.6 MP, 3:2),
1824 x 1216 (2.2 MP, 3:2),
5184 x 2920 (15.1 MP, 16:9),
3840 x 2160 (8.3 MP, 16:9),
1920 x 1080 (2.1 MP, 16:9),
1824 x 1024 (1.9 MP, 16:9),
3888 x 3888 (15.1 MP, 1:1),
2784 x 2784 (7.8 MP, 1:1),
1968 x 1968 (3.9 MP, 1:1),
1712 x 1712 (2.9 MP, 1:1)
Image File Format: JPEG (EXIF v2.3), RAW, M-RAW (10.5MP), S-RAW (5.5MP); 14-bit CR2 JPEG (EXIF 2.3), MPO, RAW, RAW + JPEG
Continuous-mode frames/second: 6.0 8.3
Video Capture
Can take movies: Yes Yes
Movie Resolution: 1920x1080 (30p/​25p/​24p)
1280x720 (60p/​50p)
640x480 (30p/​25p)
3840x2160 (30p/​24p)
1920x1080 (60p/​60i/​30p/​24p)
1280x720 (30p)
640x480 (30p)
Movie File Format: .MOV (MPEG-4 AVC / H.264), ALL-I and IPB modes AVCHD (Audio format: Dolby Digital 2ch) / MP4 (Audio format AAC 2ch)
Composite Video Out: Yes Yes
NTSC/PAL Switchable Video: Yes No
Video Usable as Viewfinder: Yes
HD Video Out: Yes Yes
HD Video Connection: HDMI HDMI
Lens & Optics
Lens Mount: Canon EF Micro Four Thirds
Lens: n/a n/a
Focal Length (35mm equivalent):    
Focal Length (actual):    
Zoom Ratio:    
Aperture Range:    
Integrated ND Filter: No No
Normal Focus Range:    
Macro Focus Range:    
Filter Thread: n/a n/a
Thread Type: n/a n/a
Optical Image Stabilization: No No
Digital Zoom: Yes
Digital Zoom Values:   2x, 4x
Auto Focus
Auto Focus: Yes Yes
Auto Focus Type: Phase Detect : 61-point (up to 41 cross-type points); One to five cross-type AF points at f/2.8, 10 to 20 cross-type AF points at f/4, and 15 to 21 cross-type AF points at f/5.6. Contrast Detection with DFD: Face/Eye detection, Tracking, 49-area, Custom Multi, 1-area, Pinpoint; One Shot AF, Shutter AF, Half Press Release, Quick AF, Continuous AF (during motion picture recording), Eye Sensor AF, AF+MF, MF Assist, Touch MF Assist, Focus Peaking, Touch AF/AE Function, Touch Pad AF, Touch Shutter
Auto Focus Assist Light? No Yes
Manual Focus: Yes Yes
Viewfinder
Viewfinder: Optical / LCD EVF / OLED
Viewfinder Type: SLR type; fixed eye-level pentaprism, 100% coverage, 0.71x magnification, 21mm eyepoint, -3 to +1 diopter, fixed focusing screen, on demand grid Tilting 2360K-dot OLED, 1.54x / 0.77x (35mm eq.) magnification, 21mm eyepoint, -4 to +3 diopter, eye sensor
Focus Peaking: No Yes
EVF Resolution: n/a 2,360,000 dots
Viewfinder Magnification (35mm equivalent): 0.71x 0.77x
Viewfinder Magnification (nominal/claimed): 0.71x 1.54x
Display
Eye-level Viewfinder: Yes Yes
Rear Display: Yes Yes
Rear Display Size (inches): 3.2 3.0
Rear Display Resolution: 1,044,000 dots (348,000 px) 1,036,800 dots (345,600 px)
Touchscreen: No Yes
Articulating Screen: No Yes
Tilt Swivel Screen: No Yes
Selfie Screen: No Yes
Max Playback Zoom: 10.0x 16.0x
Top Deck Display: Yes No
Exposure
Maximum ISO (native): 25600 25600
Minimum ISO (native): 100 200
ISO Settings: Auto, 100-25600 in 1/3 or 1 EV steps, expandable to 50 (L), 51200 (H1) and 102400 (H2) Auto, iISO, 100 (extended), 200 - 25600; in 1 or 1/3 EV steps
Auto ISO Mode: Yes Yes
White Balance Settings: Auto, Daylight, Shade, Cloudy, Tungsten, White Fluorescent, Flash, Custom, Color Temperature Auto, Daylight, Cloudy, Shade, Incandescent, Flash, White Set 1-4, Color Temperature Setting (2,500-10,000K in 100K steps)
Shutter Speed Range: 1/8000 - 30 sec 1/16000 - 60 sec
Bulb Mode: Yes Yes
Exposure Compensation: +/- 5.0EV in 0.3EV steps +/- 5.0EV in 0.3EV steps
Metering Modes: 63-zone Evaluative, Center-weighted, Partial (center, 7.2%), Spot (center, 1.5%) 1728-zone Intelligent Multiple, Center-weighted, Spot
Program Auto Exposure: Yes Yes
Aperture Priority: Yes Yes
Shutter Priority: Yes Yes
Full Manual Exposure: Yes Yes
Creative Exposure Modes: n/a Panorama (Standard/Wide); Creative Control: Expressive, Retro, Old Days, High Key, Low Key, Sepia, Monochrome, Dynamic Monochrome, Rough Monochrome, Silky Monochrome, Impressive Art, High Dynamic, Cross Process, Toy Effect, Toy Pop, Bleach Bypass, Miniature Effect, Soft Focus, Fantasy, Star Filter, One Point Color, Sunshine
Self Timer: 2, 10 seconds 2, 10, 3 shots in 10 seconds
Time Lapse (intervalometer):   Yes
High Resolution Composite: No No
Flash
Built-in Flash: No No
Flash Modes: n/a Auto, Auto/Red-eye Reduction, Forced On, Forced On/Red-eye Reduction, Slow Sync., Slow Sync./Red-eye Reduction, Forced Off; 1st. Curtain Sync, 2nd Curtain Sync.
Flash Guide Number (ISO 100): n/a n/a
Flash Range Description: n/a n/a
Max Flash Sync: 1/200 1/250
Flash Exposure Compensation: +/- 3.0 EV in 0.3EV steps +/- 3.0 EV in 0.3EV steps
External Flash Connection: Hot Shoe, PC Sync Hot Shoe
Built-In Wireless Flash Control: No No
Image Storage
Usable Memory Types: CF1 / SD / SDHC / SDXC SD / SDHC / SDXC
UHS Support: No UHS support UHS-I
Other Memory: UDMA7 compliant  
Dual Card Slots: Yes No
RAW Capture Support: Yes Yes
Uncompressed Format: RAW, M-RAW (10.5MP), S-RAW (5.5MP); 14-bit CR2 RAW, RAW + JPEG
Movie File Format: .MOV (MPEG-4 AVC / H.264), ALL-I and IPB modes AVCHD (Audio format: Dolby Digital 2ch) / MP4 (Audio format AAC 2ch)
Included Memory: No memory included No memory included
Included Memory Type:    
Connectivity
Built-In Wi-Fi: No Yes
NFC: No Yes
Bluetooth: No No
Built-In GPS: No No
Microphone Jack: Yes Yes
Headphone Jack: Yes No
External Connections: USB 2.0 High Speed USB 2.0 High Speed,WiFi
PictBridge Compliant: Yes Yes
DPOF Compliant: Yes Yes
Remote Control: Yes Yes
Remote Control Type: Optional Wired or Wireless Wi-Fi or optional wired
Connections (extended): Mini HDMI (Type C), Remote Jack, Stereo Mic Jack, Stereo Monitor Jack, PC-Sync Terminal Micro HDMI (Type-D), 2.5mm Wired Remote/External Mic Jack
Performance Timing
Cycle time for JPEG shooting in single shot mode (seconds per frame, max resolution): <0.3 <0.3
Cycle time for RAW shooting in single shot mode (seconds per frame): <0.3  
Buffer size for RAW shooting in single shot mode (frames): Unlimited  
Cycle time for RAW+JPEG shooting in single shot mode (seconds per shot): <0.3 <0.3
Camera penalizes early shutter press? No Yes
JPEG shooting speed in burst mode (fps, max resolution): 6.0 8.3
Buffer size for JPEG shooting in burst mode (frames, max resolution): 63 Unlimited
RAW shooting speed in burst mode (fps): 6.0 7.9
Buffer size for RAW shooting in burst mode (frames): 18 36
RAW+JPEG shooting speed in burst mode (fps): 6.0 7.9
Buffer Size for RAW+JPEG shooting in burst mode (frames): 7 32
Shutter lag (full AF, wide/mid): 0.12 seconds 0.18 seconds
Shutter lag (full AF, tele):    
Shutter lag (full AF, live view - DSLR): 0.78 seconds  
Shutter lag (prefocused, live view - DSLR): 0.060 seconds  
Shutter Lag (manual focus): 0.095 seconds 0.065 seconds
Shutter lag (full AF, with flash):    
Shutter Lag (prefocused): 0.061 seconds 0.058 seconds
Shutter Lag (notes): Optical Viewfinder: Full AF shutter lag, wide-area mode: 0.142s Live View: Full AF shutter lag, phase-detect: 0.823s Full AF shutter lag, contrast-detect: 0.780s Prefocused: 0.060  
Startup Time: 0.5 seconds 1.2 seconds
Play -> Record Time: 0.2 seconds 0.6 seconds
Flash cycle time, full power:    
Power
Battery Life, Stills (CIPA Rating Monitor/Live View): 200 shots 340 shots
Battery Life, Still (CIPA Rating OVF/EVF): 950 shots 320 shots
Battery Life, Video:    
Battery Form Factor: Proprietary LP-E6 Proprietary
Usable Battery Types: Lithium-ion Rechargeable or BG-E11 battery grip 7.2v, 1200mAh Lithium-ion rechargeable
Batteries Included: 1 x Proprietary LP-E6 Lithium-ion rechargeable 1 x Proprietary Lithium-ion rechargeable
Battery Charger Included (dedicated charger or AC/USB adapter): Yes Yes
Dedicated Battery Charger Included: Yes Yes
Internal Charging Supported: No No
Software
Included Software: Canon EOS Digital Solution Disc PHOTOfunSTUDIO 9.7 PE, SILKYPIX Developer Studio 4.3 SE, LoiloScope (trial version)
OS Compatibility:   PHOTOfunSTUDIO and LoiloScope: Windows Vista/7/8/8.1; SILKYPIX: Windows Vista/7/8/8.1, Mac OS X 10.5-10.10
Miscellaneous
Notes & Features: New 22.3-megapixel Full-frame CMOS Sensor, DIGIC 5+ Processor, 61-point AF System, 63-zone iFCL Metering System, 6fps Bursts, Full HD video, 100% OVF, 3.2" 1.04M-dot LCD, Dual Card Slots (SD+CF), HDR Mode, Multiple Exposure Support, Scene Intelligent Auto, Comparative Playback, Dual-Axis Electronic Level, Auto Lighting Optimizer, In-Camera RAW Processing. New 20.3MP Live MOS sensor, upgraded quad-core CPU Venus Engine image processor, Dual IS uses both IBIS and OIS, 4K 30p/24p video and stills capture, 8fps full-res burst shooting (10fps with electronic shutter), Depth From Defocus AF, tilting high-res 0.77x EVF, tilt/swivel touchscreen OLED monitor, built-in Wi-Fi with NFC, magnesium alloy die cast frame