• 35mm 849.7mm2
  • 61.0 megapixels
  • ISO 100 - 32,000
  • 35mm 864.0mm2
  • 20.1 megapixels
  • ISO 100 - 102,400
  • Detailed specifications
  • Sony Alpha ILCE-A7R IV
  • Canon EOS-1D X Mark III
Links
Prices: Compare Prices Compare Prices
Manufacturer URL: Manufacturer website Manufacturer website
Predecessor: Sony A7R III
A7R III vs A7R IV
Canon 1DX Mark II
1DX Mark II vs 1DX Mark III
Successor: Sony A7R V  
General
Model Number: A7R IV 1DX Mark III
Alternate Model Number(s): ILCE-7RM4 1DX III
Camera Format: Compact System Camera Pro SLR
Currently Manufactured: Yes Yes
Retail Price: $3500.00 $6499.00
Street Price: $3,331.19 $6,499.00
Date Available: 2019-09-01 2020-02-15
Tripod Mount: Yes Yes
Weight: 23.5 oz (665 g)
includes batteries
50.8 oz (1,440 g)
includes batteries
Size: 5.1 x 3.8 x 3.1 in.
(129 x 96 x 78 mm)
6.2 x 6.6 x 3.3 in.
(158 x 168 x 83 mm)
Waterproof: No No
Waterproof Depth: n/a n/a
Image Sensor
Sensor Type: CMOS CMOS
Sensor Manufacturer: Sony Canon
Effective Megapixels: 61.0 20.1
Sensor Format: 35mm 35mm
Sensor size: 849.66mm2 (35.70mm x 23.80mm) 864mm2 (36.00mm x 24.00mm)
Approximate Pixel Pitch: 3.76 microns 6.58 microns
Focal Length Multiplier: 1.0x 1.0x
Aspect Ratio: 3:2 3:2
Color Filter Type: RGBG RGBG
Anti Aliasing Filter: None Fixed
Self-Cleaning: Yes Yes
Sensor shift image stabilization: Yes No
On-Sensor Phase Detect: Yes Yes
DxO Sensor Score: 99  
DxO Color Depth Score (bits): 26.0  
DxO Dynamic Range Score (evs): 14.8  
DxO Maximum Effective ISO Score (iso): 3,344  
Image Capture
Image Resolution: 9504 x 6336 (60.2 MP, 3:2),
6240 x 4160 (26.0 MP, 3:2),
4752 x 3168 (15.1 MP, 3:2),
8448 x 6336 (53.5 MP, 4:3),
5552 x 4160 (23.1 MP, 4:3),
4224 x 3168 (13.4 MP, 4:3),
9504 x 5344 (50.8 MP, 16:9),
6240 x 3512 (21.9 MP, 16:9),
4752 x 2672 (12.7 MP, 16:9),
6336 x 6336 (40.1 MP, 1:1),
4160 x 4160 (17.3 MP, 1:1),
3168 x 3168 (10.0 MP, 1:1)
5472 x 3648 (20.0 MP, 3:2),
4368 x 2912 (12.7 MP, 3:2),
3648 x 2432 (8.9 MP, 3:2),
2736 x 1824 (5.0 MP, 3:2)
Image File Format: JPEG (Exif 2.31), RAW (14-bit ARW 2.3), RAW+JPEG JPEG, HEIF (10-bit), RAW, C-RAW, 14-bit CR3; RAW+JPEG, RAW+HEIF
Continuous-mode frames/second: 10.0 20.0
Video Capture
Can take movies: Yes Yes
Movie Resolution: 3840x2160 (30p/​25p/​24p)
1920x1080 (120p/​100p/​60p/​60i/​50p/​50i/​30p/​25p/​24p)
5472x2286 (60p/​50p/​30p/​25p/​24p/​23.98p)
3840x2160 (60p/​50p/​30p/​25p/​24p/​23.98p)
4096x2160 (60p/​50p/​30p/​25p/​24p/​23.98p)
1920x1080 (120p/​100p/​60p/​50p/​30p/​25p/​24p/​23.98p)
Movie File Format: XAVC S / AVCHD 2.0 / MP4; Audio: LPCM / Dolby Digital (AC-3) / MPEG-4 AAC-LC, stereo MP4 (Video: MPEG4 AVC/H.264 or MPEG4 H.265/HEVC; Audio: AAC or Linear PCM), RAW (CRM)
Composite Video Out: No No
NTSC/PAL Switchable Video: n/a n/a
Video Usable as Viewfinder: n/a n/a
HD Video Out: Yes Yes
HD Video Connection: HDMI HDMI
Lens & Optics
Lens Mount: Sony E Canon EF
Lens: n/a n/a
Focal Length (35mm equivalent):    
Focal Length (actual):    
Zoom Ratio:    
Aperture Range:    
Integrated ND Filter: 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: Up to 4x; up to 2x Clear Image Digital Zoom  
Auto Focus
Auto Focus: Yes Yes
Auto Focus Type: Fast Hybrid 4D AF: 567 points (PDAF), APS-C mode with full-frame lens: 325 points (PDAF), with APS-C lens: 247 points (PDAF) / 425 points (contrast-detection AF); Wide (567 points (PDAF), 425 points (CDAF))/Zone/Center/Flexible Spot (S/M/L)/Expanded Flexible Spot/Tracking (Wide/Zone/Center/Flexible Spot (S/M/L)/Expanded Flexible Spot); Touch AF OVF: Phase-detect AF via 191 AF points with 155 cross-type points and 1 dual cross-type; Live View uses Dual Pixel CMOS AF
Auto Focus Assist Light? Yes No
Manual Focus: Yes Yes
Viewfinder
Viewfinder: EVF / LCD Optical / LCD
Viewfinder Type: EVF: 1.3 cm (0.5 type) 5.76M-dot UXGA color OLED, 100% coverage, 0.78x magnification, -4.0 to +3.0m-1 diopter, Approx. 23mm eyepoint from the eyepiece lens, 18.5mm from the eyepiece frame at -1m-1, eye sensor SLR type; eye-level pentaprism, 100% coverage, 0.76x magnification, 20mm eyepoint, -3.0 to +1.0 diopter; fixed focusing screen
Focus Peaking: Yes No
EVF Resolution: 5,760,000 dots (1,920,000 pixels) n/a
Viewfinder Magnification (35mm equivalent): 0.78x 0.76x
Viewfinder Magnification (nominal/claimed): 0.78x 0.76x
Display
Eye-level Viewfinder: Yes Yes
Rear Display: Yes Yes
Rear Display Size (inches): 3.0 3.2
Rear Display Resolution: 1,440,000 dots (360,000 px) 2,100,000 dots
Touchscreen: Yes Yes
Articulating Screen: Yes No
Tilt Swivel Screen: No No
Selfie Screen: No No
Max Playback Zoom:    
Top Deck Display: No Yes
Exposure
Maximum ISO (native): 32000 102400
Minimum ISO (native): 100 100
ISO Settings: AUTO (ISO 100-12800; selectable lower limit and upper limit), ISO 100 - 32000, expandable to ISO 50 - 102400 Auto (100-102400), 100-102400 (in 1/3-stop or whole stop increments), ISO can be expanded to L: 50, H1: 204800, H2: 409600, H3: 819200
Auto ISO Mode: Yes Yes
White Balance Settings: Auto, Daylight, Shade, Cloudy, Incandescent, Fluorescent (4 settings), Flash, Custom, Color Temp./ Filter (2500-9900K with 15-step Magenta/Green compensation), Underwater Auto (Ambience priority/White priority), Daylight, Shade, Cloudy, Tungsten Light, White Fluorescent Light, Flash, Custom, Color Temperature
Shutter Speed Range: 1/8000 - 30 sec 1/8000 - 30 sec
Bulb Mode: Yes Yes
Exposure Compensation: +/- 5.0EV in 0.3EV steps +/- 5.0EV in 0.3EV steps
Metering Modes: 1200-zone Evaluative Multi-segment, Center-weighted, Spot, Spot Standard/Large, Entire Screen Avg., Highlight 400K-pixel RGB+IR sensor: 384-zone Evaluative (linked to all AF points); Center-weighted; Partial (6.2% of viewfinder); Spot (1.5% of viewfinder) center or linkable to AF points; Multi-spot
Program Auto Exposure: Yes Yes
Aperture Priority: Yes Yes
Shutter Priority: Yes Yes
Full Manual Exposure: Yes Yes
Creative Exposure Modes: 3 Custom Settings; Slow & Quick Motion; HDR: Auto Exposure Difference, Exposure difference Level (1-6 EV at 1.0 EV step)  
Self Timer: 2, 5, 10; 3/5 shots after 2/5/10 seconds 10, 2 seconds
Time Lapse (intervalometer): Yes Yes
High Resolution Composite: 240.8 megapixels No
Flash
Built-in Flash: No No
Flash Modes: Flash off, Auto flash, Fill-flash, Slow Sync., Rear Sync., Hi-speed Sync, Wireless; Red-eye reduction: On/Off Depends on external flash
Flash Guide Number (ISO 100): n/a n/a
Flash Range Description: n/a n/a
Max Flash Sync: 1/250 1/250
Flash Exposure Compensation: +/- 3.0 EV in 0.3EV steps +/- 3.0 EV in 0.3EV steps
External Flash Connection: Enhanced Multi Interface Hot Shoe, Sync Terminal Hot Shoe, PC Sync Terminal
Built-In Wireless Flash Control: No No
Image Storage
Usable Memory Types: SD / SDHC / SDXC CFexpress
UHS Support: UHS-II  
Other Memory: Dual SD UHS-II slots  
Dual Card Slots: Yes Yes
RAW Capture Support: Yes Yes
Uncompressed Format: RAW (14-bit ARW 2.3), RAW+JPEG RAW, C-RAW, 14-bit CR3; RAW+JPEG, RAW+HEIF
Movie File Format: XAVC S / AVCHD 2.0 / MP4; Audio: LPCM / Dolby Digital (AC-3) / MPEG-4 AAC-LC, stereo MP4 (Video: MPEG4 AVC/H.264 or MPEG4 H.265/HEVC; Audio: AAC or Linear PCM), RAW (CRM)
Included Memory: No memory included No memory included
Included Memory Type:    
Connectivity
Built-In Wi-Fi: Yes Yes
NFC: Yes No
Bluetooth: Yes Yes
Built-In GPS: No Yes
Microphone Jack: Yes Yes
Headphone Jack: Yes Yes
External Connections: USB 2.0 High Speed,USB 3.0 Super Speed,Bluetooth,WiFi USB 3.0 Super Speed,Ethernet,Bluetooth,WiFi
PictBridge Compliant: No No
DPOF Compliant: Yes Yes
Remote Control: Yes Yes
Remote Control Type: Optional via RM-VPR1, USB, Wi-Fi or Bluetooth Wi-Fi/Bluetooth/IR; optional wired (N3 contact), WFT-E9
Connections (extended): USB-C (USB 3.1 Gen 1), Multi-Terminal Micro USB (with remote support), Type-D Micro HDMI, 3.5mm Microphone and Headphone jacks USB-C (USB 3.1 Gen2) , Mini HDMI (Type-C), N3 remote terminal, WFT terminal, 3.5mm external mic and headphone jacks, 1000BASE-T Ethernet RJ-45 jack
Performance Timing
Cycle time for JPEG shooting in single shot mode (seconds per frame, max resolution): <0.3  
Cycle time for RAW shooting in single shot mode (seconds per frame):    
Buffer size for RAW shooting in single shot mode (frames):    
Cycle time for RAW+JPEG shooting in single shot mode (seconds per shot): <0.3  
Camera penalizes early shutter press? No
JPEG shooting speed in burst mode (fps, max resolution): 10.0 20.0
Buffer size for JPEG shooting in burst mode (frames, max resolution): 70 Unlimited
RAW shooting speed in burst mode (fps): 7.2 20.0
Buffer size for RAW shooting in burst mode (frames): 32 Unlimited
RAW+JPEG shooting speed in burst mode (fps): 7.2 20.0
Buffer Size for RAW+JPEG shooting in burst mode (frames): 32 Unlimited
Shutter lag (full AF, wide/mid): 0.21 seconds  
Shutter lag (full AF, tele):    
Shutter lag (full AF, live view - DSLR):    
Shutter lag (prefocused, live view - DSLR):    
Shutter Lag (manual focus): 0.124 seconds  
Shutter lag (full AF, with flash):    
Shutter Lag (prefocused): 0.022 seconds  
Shutter Lag (notes):    
Startup Time: 1.3 seconds  
Play -> Record Time: 1.5 seconds  
Flash cycle time, full power:    
Power
Battery Life, Stills (CIPA Rating Monitor/Live View): 670 shots 610 shots
Battery Life, Still (CIPA Rating OVF/EVF): 530 shots 2850 shots
Battery Life, Video: 105 minutes  
Battery Form Factor: Proprietary Proprietary LP-E19
Usable Battery Types: NP-FZ100 Lithium-ion rechargeable Lithium-ion rechargeable
Batteries Included: 1 x Proprietary NP-FZ100 Lithium-ion rechargeable 1 x Proprietary LP-E19 Lithium-ion rechargeable
Battery Charger Included (dedicated charger or AC/USB adapter): Yes Yes
Dedicated Battery Charger Included: Yes Yes
Internal Charging Supported: Yes No
Software
Included Software: Capture One Express (for Sony) free download Digital Photo Professional, EOS Utility, ZoomBrowser EX / ImageBrowser, Photostitch, Picture Style Editor
OS Compatibility:    
Miscellaneous
Notes & Features: