Sony A7R III vs Sony A9 – Comparison


Here is a quick comparison for the Sony A7R III vs Sony A9 mirrorless cameras with full-frame image sensors.

Sony continue to update the a7 series with advanced features and according to community needs. The new Sony A7R III mirrorless camera can shoot full frame 42MP RAW photos at a blazing speed of 10 frames per second with full AF and AE capabilities.

The price of Sony Alpha a9 is $1,300 more than the A7rIII. The A9 costs $4500 while the A7R III has a price tag of $3,198.

If you’re looking to upgrade to a mirrorless camera with full frame sensor, the Sony A7R III vs Sony A9 comparison covers all the important specifications of each camera.

Differences between the Sony A7R III vs Sony A9

So what may be the main differences when consider their specs list? Let’s have a brief look at the main features of Sony A9 vs Sony A7R III vs Sony A9. Some differences like sensor, image size, shooting speed, lcd size etc.. detailed as bold on the table.

Feature Sony A7R III Sony A9
Effective Pixels (megapixels) 42.3 megapixels 24 megapixels
Sensor Type / Size CMOS, 36 x 24 mm CMOS, 36 x 24 mm
Sensor Pixel Size ~4.5 microns ~5.93 microns
Image Size 7952 x 5304 6000 x 4000
Image Processor BIONZ X BIONZ X
Image Stabilization 5-Axis sensor shift – 5.5 stops 5-Axis sensor shift
Viewfinder Type EVF / LCD EVF / LCD
Viewfinder Magnification EVF: 1.3 cm (0.5 type) 3,686K-dot Quad VGA color OLED, 100% coverage, 0.78x magnification EVF: 1.3 cm (0.5 type) 3,686K-dot Quad VGA color OLED, 100% coverage, 0.78x magnification
Built-in Flash No No
Storage Media Two SD/SDHC/SDXC slots (UHS-II support on one) Slot1:SD UHS-II; 2:MS/SD UHS-I
Continuous Shooting Speed 10fps 20 fps with AF/AE
Buffer Size (RAW) 76 241 images
Buffer Size (JPEG) 76 362 images
Max Shutter Speed 1/8000 to 30 sec 30 – 1/32000
Base ISO ISO 100 ISO 100
Native ISO Sensitivity 100-32,000 ISO 100-51,200
Boosted ISO Sensitivity ISO 50 – 102400 ISO 50 – 204800
Autofocus System Fast Hybrid AF with 399 focal plane phase detect points and 25 contrast detect AF points Fast Hybrid AF: Wide (693 points (phase-detection AF), 25 points (contrast-detection AF)
Video Output XAVC S / AVCHD 2.0 / MP4 XAVC S / AVCHD 2.0 / MP4
Video Maximum Resolution 4K (3840 x 2160) at 30p 4K (3840 x 2160) at 30p
LCD Size 3″ Rear Articulated TFT-LCD 3.0″ Rear Articulating LCD
LCD Resolution 1,228,800 dots 1,440,000 dots (360,000 px)
LCD Touchscreen Yes Yes
Built-in GPS No No
Wi-Fi / NFC Wifi, NFC, Bluetooth Wifi, NFC, Bluetooth
Battery NP-FW100 NP-FZ100
Battery Life 650 shots 650 shots, 105 minutes video footage
USB Version 3.1 3.0
Weight 657 g 673 g
Dimensions 127 x 96 x 74 mm 127 x 96 x 63 mm
Price $3,198 $4500


  • Henry Silver Lam

    A7R3 use NP-FZ100 too