Sony A7 IV vs A7R III Differences

Sony A7 IV

Sony Alpha A7R III

Release Date21 October 202125 October 2017
Body Type SLR Style MirrorlessSLR Style Mirrorless
Sensor typeBSI CMOS Full FrameExmor R
Sensor size 35.8 x 23.8 mm35.9 x 24 mm
Sensor resolution7008 x 46727952 x 5304
Sensor pixels3342
ProcessorBionz XRBionz X
ISO100 to 51200
Expanded to 50-204800
Expands to 50-102400
Image stabilization5 axis 5.5 stops5 axis 5.5 stops
Focal length multiplier1x1x
Focus typeFast Hybrid AFFast Hybrid AF
Focus points759425
Manual focusYes
Viewfinder typeElectronic OledElectronic Quad VGA OLED
Viewfinder resolution3.68 million dots3,686,400 dots
Screen typeFully Articulated touch LCD Articulated Tilting LCD
Screen Size3.0″3.0″
Screen resolution1,040K1,440,000 dots
Shutter speedMin 30 sec
Max 1/8000
Min 30 sec
Max 1/8000
External flashYes
Flash sync speed1/2501/250
Image format JPEG, RAW, HEIF
Exposure compensation+/- 5 at 1/3 EV, 1/2 EV steps+/- 5 at 1/3 EV, 1/2 EV, 2/3 EV, 1EV, 2EV steps
Bit Rate14 bit
Video formatHAVC S, HAVC HSMPEG-4, H.264, HAVC S, AVCHD
Video compressionMPEG-4 AVC/H.264, MPEG-H HEVC/H.265
Video resolution4K 60p, 4K 30p, 24p, FHD-120p, 60p, 30p, 24p, 4:2:2, 10 bit internal recording4K30/25/24p
Full HD 120/100/60/50/30/25/24p
Log ProfileS Log3 15+ stops Latitude
Audio formatLPCM 2ch 16 bit 48 kHz
Dynamic range15 stops
Storage typeSD UHS I/II CF express Type ASDHC/SDXC UHS-II
ConnectivityUSB 3.2 Gen 2 Type CUSB 3.1 Gen1 5GBit sec
Battery typeNP-FZ100
Battery life610 shots650 shoots
Dimensions131.3 x 96.4 x 79.8 mm127 x 96 x 74mm

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