Sony Alpha 7R IV Compared to the Sony Alpha 7R III

SpecificationsSony Alpha 7R IVSony Alpha 7R III
  Sony Alpha 7R III
Year Introduced20192017
Megapixels61.042.4
Total Pixels62.543.6
Sensor Size35.7 × 23.8mm35.9 x 24.0mm
Pixel Dimensions9504 x 63367952 x 5304
Pixel Size3.76µm4.51µm
Diffraction-Limited Aperturef/6.1f/7.3
Sensor StabilizationYY
Lens MountSony E-mountSony E-mount
FOVCF1.0x1.0x
Image ProcessorBIONZ XBIONZ X
 
Autofocus  
TypeFast Hybrid AF (phase-detection AF/contrast-detection AF)Fast Hybrid AF (phase-detection AF/contrast-detection AF)
Points35 mm full frame: 567 points (phase-detection AF), APS-C mode with full-frame lens: 325 points (phase-detection AF), with APS-C lens: 247 points (phase-detection AF)/425 points (contrast-detection AF)35 mm full frame: 399 points (phase-detection AF), APS-C mode with full frame lens: 323 points (phase-detection AF), with APS-C lens: 255 points (phase-detection AF) / 425 points (contrast-detection AF)
Working RangeEV-3 to EV 20 (ISO 100 equivalent with F2.0 lens attached)EV-3 – EV 20 (ISO 100 equivalent with F2.0 lens attached)
ModesAF-A (Automatic AF), AF-S (Single-shot AF), AF-C (Continuous AF), DMF (Direct Manual Focus), Manual FocusAF-A (Automatic AF), AF-S (Single-shot AF), AF-C ( Continuous AF), DMF (Direct Manual Focus), Manual Focus
Point SelectionWide (567 points (phase-detection AF), 425 points (contrast-detection AF))/Zone/Center/Flexible Spot (S/M/L)/Expanded Flexible Spot/Tracking (Wide/Zone/Center/Flexible Spot (S/M/L)/Expanded Flexible Spot)Wide (399 points (phase-detection AF), 425 points (contrast-detection AF)) / Zone / Center / Flexible Spot (S/M/L) /Expanded Flexible Spot/ Lock-on AF (Wide / Zone / Center / Flexible Spot (S/M/L)/Expanded Flexible Spot)
MicroadjustmentYesYes
 
Exposure Control  
Metering Modes1200-zone evaluative metering1200-zone evaluative metering
Metering RangeEV -3 – EV 20 (at ISO100 equivalent with F2.0 lens attached)EV -3 – EV 20 (at ISO100 equivalent with F2.0 lens attached)
Exposure Comp+/- 5.0 EV (1/3 EV, 1/2 EV steps selectable) (with exposure compensation dial: +/- 3EV (1/3 EV steps))+/- 5.0EV(1/3 EV, 1/2 EV steps selectable), (with exposure compensation dial: +/- 3EV (1/3 EV steps))
AEBBracket: Cont., Bracket: Single, 3/5/9 frames selectable. With 3 or 5 frames, in 1/3, 1/2, 2/3, 1.0, 2.0, or 3.0 EV increments, with 9 frames, in 1/3, 1/2, 2/3, or 1.0 EV increments.Bracket: Cont., Bracket: Single, 3/5/9 frames selectable. With 3 or 5 frames, in 1/3, 1/2, 2/3, 1.0, 2.0, or 3.0 EV increments, with 9 frames, in 1/3, 1/2, 2/3, or 1.0 EV increments.
ISO SensitivityStill images: ISO 100–32000 (ISO numbers up from ISO 50 to ISO 102400 can be set as expanded ISO range.), AUTO (ISO 100–12800, selectable lower limit and upper limit), Movies: ISO 100-32000 equivalent, AUTO (ISO 100-12800, selectable lower limit and upper limit)Still images: ISO 100-32000 (Expandable to ISO 50 to 102400), AUTO (ISO 100-12800, selectable lower limit and upper limit), Movies: ISO 100-32000 equivalent, AUTO (ISO 100-12800, selectable lower limit and upper limit)
Shutter SpeedStill images: 1/8000 to 30 s, Bulb, Movies: 1/8000 to 1/4 (1/3 steps), up to 1/60 in AUTO mode (up to 1/30 in Auto slow shutter mode)30 - 1/8000 sec, Bulb
WB SettingsAuto / Daylight / Shade / Cloudy / Incandescent / Fluorescent (Warm White / Cool White / Day White / Daylight) / Flash / Underwater / Color Temperature (2500 to 9900K) & color filter (G7 to M7 (57-step), A7 to B7 (29-step)) / CustomAuto / Daylight / Shade / Cloudy / Incandescent / FluorescentWarm White / Cool White / Day White / Daylight/ Flash /Underwater/ Color Temperature2500 to 9900K& color filterG7 to M7(57-step), A7 to B7(29-step)/ Custom
Custom WBYesYes, 3 settings can be registered
 
Viewfinder  
Type1.3 cm / 0.5" electronic, UXGA OLED Tru-Finder, 5.76 million dots1.3 cm (0.5-type) electronic viewfinder (color), Quad-VGA OLED
CoverageApprox. 100%Approx. 100%
MagnificationApprox. 0.78xApprox. 0.78x
EyepointApprox. 23mmApprox. 23mm
InformationGraphic Display, Display All Info, No Disp. Info, Digital Level Gauge, Histogram, For viewfinder, Monitor OffGraphic Display, Display All Info, No Display Info, Digital Level Gauge, Histogram
DOF PreviewYes (via Setting Effect)Yes (via Setting Effect)
Eyepiece Shutter
 
LCD  
TypeTouch Screen 2.95 inch (3.0-type) wide type TFT, 1,440,000 dots, adjustable up by approx. 107 degrees, down by approx. 41 degrees
Revision A: 2,359,296 dots
Tilt type 1.44m-Dot 2.95 inch (3.0-type) wide type TFT
Revision A: 2,359,296 dots
Coating
Brightness AdjManual (5 steps between -2 and +2), Sunny Weather modeManual (5 steps between -2 and +2), Sunny Weather mode
Display OptionsGraphic Display, Display All Info, No Display Info, Digital Level Gauge, HistogramGraphic Display, Display All Info., No Disp. Info., Digital Level Gauge, Histogram, For viewfinder, Monitor Off
 
Flash  
Built-in GNN/A (ISO 100, meters)N/A (ISO 100, meters)
Built-in CoverageN/AN/A
Built-in Recycle TimeN/AN/A
ModesFlash off, Autoflash, Fill-flash, Slow Sync., Rear Sync., Red-eye reduction (on/off selectable), Wireless, Hi-speed sync.Flash off, Autoflash, Fill-flash, Slow Sync., Rear Sync., Red-eye reduction (on/off selectable), Wireless, Hi-speed sync.
X-Sync1/250sec1/250sec
Exposure Compensation+/- 3.0 EV (switchable between 1/3 and 1/2 EV steps)+/- 3.0 EV (switchable between 1/3 and 1/2 EV steps)
Hot Shoe/PC TerminalYes/YesYes / Yes
External Flash CompSony α System FlashSony α System Flash
External Flash ControlVia camera setting/ flash setting menuVia camera setting/ flash setting menu
 
Shooting  
Shooting ModesAUTO (iAuto), Programmed AE (P), Aperture priority (A), Shutter-speed priority (S), Manual (M), Movie (Programmed AE (P) / Aperture priority (A) / Shutter-speed priority (S) / Manual (M) ), Slow & Quick Motion (Programmed AE (P) / Aperture priority (A) / Shutter-speed priority (S) / Manual (M) )AUTO (iAuto), Programmed AE (P), Aperture priority (A), Shutter-speed priority (S), Manual (M), Movie (Programmed AE (P) / Aperture priority (A) / Shutter-speed priority (S) / Manual (M) ), Slow & Quick Motion (Programmed AE (P) / Aperture priority (A) / Shutter-speed priority (S) / Manual (M) )
Picture StylesStandard, Vivid, Neutral, Clear, Deep, Light, Portrait, Landscape, Sunset, Night Scene, Autumn leaves, Black & White, Sepia, Style Box (1-6), (Contrast (-3 to +3 steps), Saturation (-3 to +3 steps), Sharpness (-3 to +3 steps))Standard, Vivid, Neutral, Clear, Deep, Light, Portrait, Landscape, Sunset, Night Scene, Autumn leaves, Black & White, Sepia,Style Box(1-6), (Contrast (-3 to +3 steps), Saturation (-3 to +3 steps), Sharpness (-3 to +3 steps))
Image ProcessingPeripheral Shading, Chromatic Aberration, DistortionPeripheral Shading, Chromatic Aberration, & Distortion Correction
Long exposure, High ISO & Multi Frame NR (Noise Reduction)
Drive ModesSingle Shooting, Continuous shooting (Hi+/Hi/Mid/Lo selectable), Self-timer, Self-timer (Cont.), Bracket: Single, Bracket: Cont., White Balance bracket, DRO bracketSingle Shooting, Continuous shooting (Hi+/Hi/Mid/Lo selectable), Self-timer, Self-timer (Cont.), Bracket: Single, Bracket: Cont., White Balance bracket, DRO bracket
Continuous ShootingHi+: max. 10 fps, Hi: max. 8 fps, Mid: max. 6fps, Lo: max. 3 fps3Max Approx. 10 fps (speed maintained 28 RAW / 76 JPEG)
Shutter Lag
Viewfinder Blackout
 
Live View  
FrameRate
FocusingAF-A (Automatic AF), AF-S (Single-shot AF), AF-C (Continuous AF), DMF (Direct Manual Focus), Manual FocusAF-A (Automatic AF), AF-S (Single-shot AF), AF-C ( Continuous AF), DMF (Direct Manual Focus), Manual Focus
MeteringMulti-segment, Center-weighted, Spot, Spot Standard/Large, Entire Screen Avg., HighlightMulti-segment, Center-weighted, Spot, Spot Standard/Large, Entire Screen Avg., Highlight
Display OptionsGraphic Display, Display All Info., No Disp. Info., Digital Level Gauge, Histogram, For viewfinder, Monitor OffGraphic Display, Display All Info., No Disp. Info., Digital Level Gauge, Histogram, For viewfinder, Monitor Off
 
File Information  
Still ImageTypeJPEG (DCF Ver. 2.0, Exif Ver.2.31, MPF Baseline compliant), RAW (Sony ARW 2.3 format)JPEG (DCF Ver. 2.0, Exif Ver.2.31, MPF Baseline compliant), RAW (Sony ARW 2.3 format)
Image Size3:2 Ratio
35 mm full frame L: 9504 x 6336 (60 M), M: 6240 x 4160 (26 M), S: 4752 x 3168 (15M) APS-C L: 6240 x 4160 (26 M), M: 4752 x 3168 (15M), S: 3120 x 2080 (6.5 M)
4:3 Ratio
35 mm full frame L: 8448 x 6336 (54 M), M: 5552 x 4160 (23 M), S: 4224 x 3168 (13M) APS-C L: 5552 x 4160 (23 M), M: 4224 x 3168 (13 M), S: 2768 x 2080 (5.8 M)
16:9 Ratio
35 mm full frame L: 9504 x 5344 (51 M), M: 6240 x 3512 (22 M), S: 4752 x 2672 (13M) APS-C L: 6240 x 3512 (22 M), M: 4752 x 2672 (13 M), S: 3120 x 1752 (5.5 M)
1:1 Ratio
35 mm full frame L: 6336 x 6336 (40 M), M: 4160 x 4160 (17 M), S: 3168 x 3168 (10M) APS-C L: 4160 x 4160 (17 M), M: 3168 x 3168 (10M), S: 2080 x 2080 (4.3 M)
3:2 Ratio: L: 7,952 x 5,304 (42M), M: 5,168 x 3,448 (18M), S: 3,984 x 2,656 (11M), APS-C L: 5,168 x 3,448 (18M), M: 3,984 x 2,656 (11M), S: 2,592 x 1,728 (4.5M)
16:9 Ratio: L: 7,952 x 4,472 (36M), M: 5,168 x 2,912 (15M), S: 3,984 x 2,240 (8.9M), APS-C L: 5,168 x 2,912 (15M), M: 3,984 x 2,240 (8.9M), S: 2,592 x 1,456 (3.8M)
Movie TypeXAVC S: MPEG-4 AVC/H.264, AVCHD: MPEG-4 AVC/H.264XAVC S:MPEG-4 AVC/H.264, AVCHD: MPEG-4 AVC/H.264, MP4: MPEG-4 AVC/H.264
Movie SizeXAVC S 4K (NTSC): 3840 x 2160 (30p, 100 M), 3840 x 2160 (24p, 100 M), 3840 x 2160 (30p, 60 M), 3840 x 2160 (24p, 60 M), XAVC S HD: 1920 x 1080 (120p, 100M), 1920 x 1080 (120p, 60M), 1920 x 1080 (60p, 50M), 1920 x 1080 (30p, 50M), 1920 x 1080 (24p, 50M), 1920 x 1080 (60p, 25M), 1920 x 1080 (30p, 16M), AVCHD: 1920 x 1080 (60i, 24M, FX), 1920 x 1080 (60i, 17M, FH)
XAVC S 4K (PAL): 3840 x 2160 (25p, 100M), 3840 x 2160 (25p, 60M), XAVC S HD:1920 x 1080 (100p, 100M), 1920 x 1080 (100p, 60M), 1920 x 1080 (50p, 50M), 1920 x 1080 (25p, 50M), 1920 x 1080 (50p, 25M), 1920 x 1080 (25p, 16M), AVCHD: 1920 x 1080 (50i, 24 M, FX), 1920 x 1080 (50i, 17 M, FH)
NTSC: XAVC S 4K: 3840 x 2160 (30p/100 Mbps, 24p/100 Mbps, 30p/60 Mbps, 24p/60 Mbps), XAVC S HD: 1920 x 1080 (120p/100 Mbps, 120p/60 Mpbs, 60p/50 Mbps, 30p/50 Mbps, 24p/50 Mbps, 60p/25 Mbps, 30p/16 Mbps), AVCHD: 1920 x 1080 (60i, 24 M, FX & 60i, 17 M, FH)
Movie LengthMax duration approx. 29min
 
Other Information  
Wireless FeaturesBuilt-in Wi-Fi, Bluetooth and NFCBuilt-in Wi-Fi, NFC & Bluetooth
GPS
Custom Functions
LCD Panel / IlluminationNo / NoNo / No
Water & Dust ResistanceYesYes
Sound MemoNoNo
 
Interface  
Computer InterfaceUSB Type-C SuperSpeed (USB 3.2 Gen 1)USB Type-C SuperSpeed (USB 3.1 Gen 1)
Revision A: SuperSpeed USB 5 Gbps (USB 3.2)
Other InterfaceHDMI micro connector (Type-D), BRAVIA Sync (Control for HDMI), PhotoTV HD, 4K movie output/4K still image PBHDMI micro connector (Type-D) out, External Microphone In / Line In (Stereo mini jack), Headphone socket (Stereo mini jack)
 
Memory  
Memory TypeSD/SDHC/SDXC (UHS-I/II)Memory Stick PRO Duo/PRO HG-Duo/Micro M2, SD/SDHC/SDXC
 
Batteries & Power  
BatteryRechargeable NP-FZ100Rechargeable NP-FZ100
Battery LifeApprox. 530 shots (Viewfinder)/approx. 670 shots (LCD monitor)Approx. 530 shots (Viewfinder) / approx. 650 shots (LCD monitor)
Power Supply Battery ChargersAC-UUD12 AC Adapter, BC-QZ1 Battery ChargerAC-UUD12 AC Adapter, BC-QZ1 Battery Charger
 
Physical Specs  
Body MaterialsMagnesium Alloy body coversMagnesium Alloy body covers
Shutter Durability Rating
Operating Environment32–104°F / 0–40°C32–104°F / 0–40°C
Dimensions Inches5.2 x 3.9 x 3.2" (128.9 x 96.4 x 77.5mm)5.0 x 3.88 x 3.0" (126.9 x 95.6 x 73.7mm)
CIPA Weight23.5 oz (665g)23.2 oz (657g)
 
Accessories  
Viewfinder
Wireless File TransmitterBuilt-inBuilt-in
Compatible LensesSony E-MountSony E-Mount
Battery Grip VG-C4EM  Buy ► VG-C3EM  Buy ►
RemoteSony Remote Control with Multi-terminal cable, Compatible infrared remoteSony Remote Control with Multi-terminal cable, Compatible infrared remote
Other
 
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