Sony a9 vs Sony a7RII Comparison

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Want to find out the main differences between Sony a9 ($4,498) and Sony a7RII ($2,698)? Here is the detailed comparison of Sony a9 vs Sony a7RII.

Let’s have a brief look at the key features of Sony a9 and Sony a7RII full frame E mount mirrorless cameras before getting into our more detailed comparison.

Sony A9 Key Features:

  • 24.2MP Full-Frame Stacked CMOS Sensor
  • BIONZ X Image Processor & Front-End LSI
  • 693-Point AF System & 20 fps Shooting
  • Blackout-Free Quad-VGA 3.7m-Dot OLED EVF
  • Internal UHD 4K Video Recording
  • 5-Axis SteadyShot INSIDE Stabilization
  • 3.0″ 1.44m-Dot Tilting Touchscreen LCD
  • ISO 204,800, Silent Electronic Shutter
  • Built-In Wi-Fi/Bluetooth, Dual SD Slots
  • Integrated LAN and PC Sync Terminals

Sony A7RII Key Features:

  • 42MP Full-Frame Exmor R BSI CMOS Sensor
  • BIONZ X Image Processor
  • Internal UHD 4K Video & S-Log2 Gamma
  • 5-Axis SteadyShot INSIDE Stabilization
  • 399 Phase-Detect AF Points & 5 fps Burst
  • 0.5″ 2.36M-Dot XGA OLED Tru-Finder EVF
  • 3.0″ 1,228.8k-Dot Tilting LCD Monitor
  • ISO 102,400 and Silent Shutter Mode
  • Durable Reduced-Vibration Shutter Design
  • Built-In Wi-Fi Connectivity with NFC

CameraSize already added the new Sony a9 to their database and here is the size comparison of Sony a9 vs Sony a7RII:

 

  • Sony Alpha A9 and Sony A7R II are the same width (126.9 mm) and 0% (0.1 mm) shorter than Sony A7R II.
  • Sony Alpha A9 is 4% (2.7 mm) thicker than Sony A7R II.
  • Sony Alpha A9 [673 g] weights 8% (48 grams) more than Sony A7R II [625 g] (*inc. batteries and memory card).
  • Sony Alpha A9 dimensions: 126.9×95.6×63 mm (camera body only, excluding protrusion)
  • Sony A7R II dimensions: 126.9×95.7×60.3 mm (camera body only, excluding protrusion)

You can also see the Sony a9 vs Sony a7RII Side by Side Comparison.

Sony a9 vs Sony a7RII Specifications Comparison

Features Sony A9 Sony A7RII
Announced Apr 19, 2017 Jun 10, 2015
Effective pixels 24MP 42MP
Max resolution 6000 x 4000 7952 x 5304
Sensor Size Full frame (35.6 x 23.8 mm) Full frame (35.9 x 24 mm)
Sensor type BSI-CMOS BSI-CMOS
Sensor Pixel Size ~5.93 microns ~4.5 microns
Image Processor BIONZ X BIONZ X
Native ISO Sensitivity ISO 100-51,200 100-25,600
Boosted ISO Sensitivity ISO 50 – 204800 ISO 50 – 102400
Image Stabilization 5-Axis sensor shift 5-Axis sensor shift
Autofocus System Fast Hybrid AF: Wide (693 points (phase-detection AF), 25 points (contrast-detection AF) Fast Hybrid AF with 399 focal plane phase detect points and 25 contrast detect AF points
Number of focus points 693 399
Viewfinder Type EVF / LCD EVF / LCD
Viewfinder Magnification EVF: 1.3cm (0.5-inch) 2.4M-dot XGA color OLED, 100% coverage, 0.78x magnification EVF: 1.3cm (0.5-inch) 2.4M-dot XGA color OLED, 100% coverage, 0.78x magnification
Viewfinder resolution 3,686,400 2,359,296
LCD Size 3″ 3″
LCD Resolution 1,440,000 dots (360,000 px) 1,228,800 dots
LCD Touchscreen Yes No
Minimum shutter speed 30 sec 30 sec
Maximum shutter speed 1/8000 sec 1/8000 sec
Maximum shutter speed (electronic) 1/32000 sec –
Built-in Flash No No
Flash X sync speed 1/250 sec 1/250 sec
Continuous Shooting Speed 20 fps with AF/AE 5fps
External flash Yes (via hot shoe or flash sync port) Yes (via hot shoe)
Storage types Dual SD/SDHC/SDXC slots (UHS-II compatible) SD/SDHC/SDXC, Memory Stick Duo/Pro Duo/Pro-HG Duo
Buffer Size (RAW) 241 images 23
Buffer Size (JPEG) 362 images 23
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
Built-in GPS No No
Wi-Fi / NFC Wifi, NFC, Bluetooth Wifi, NFC, No Bluetooth
Battery NP-FZ100 NP-FW50
Battery Life 650 shots, 105 minutes video footage 290 shots
USB Version USB 2.0 (480 Mbit/sec) USB 2.0 (480 Mbit/sec)
Weight 673 g (1.48 lb / 23.74 oz) 625 g (1.38 lb / 22.05 oz)
Dimensions 5.0 x 3.8 x 2.5 in.(127 x 96 x 63 mm) 5.0 x 3.8 x 2.4 in.(127 x 96 x 60 mm)
Price $4,498 (as introduced) $2,698 (current)