Sony Alpha a9 Mirrorless Digital Camera (Body Only)

Model #ILCE-9/B

Sony Warranty - USA Version
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Diopter Adjustment -4 to +3 m
Display Screen 3" Rear Touchscreen Tilting LCD (1,440,000)
Screen Coverage 100%
Viewfinder Pixel Count 3,686,400
Viewfinder Eye Point 23.00 mm
Viewfinder Coverage 100%
Viewfinder Magnification Approx. 0.78x
Viewfinder Type Electronic
Viewfinder Size 0.5"


Battery 1 x NP-FZ100 Rechargeable Lithium-Ion Battery Pack, 7.2 VDC, 2280 mAh
Operating/Storage Temperature Operating32 to 104°F (0 to 40°C)


Dimensions (WxHxD) 5.0 x 3.8 x 2.5" / 126.9 x 95.6 x 63.0 mm
Weight 1.48 lb / 673 g


Connectivity 1/8" Headphone, 1/8" Microphone, HDMI D (Micro), Micro-USB, X-Sync Socket
Wi-Fi Capable Yes
Self Timer 10 Seconds, 5 Seconds, 2 Seconds


Image Stabilization Sensor-Shift, 5-Way
Memory Card Type SDSDHCSDXCMemory Stick Duo
Dust Reduction System Yes
Bit Depth 14-Bit
File Formats Still Images: JPEG, RAWMovies: AVCHD Ver. 2.0, MP4, MPEG-4 AVC/H.264, XAVC SAudio: AAC LC, AC3, Dolby Digital 2ch, Linear PCM
Sensor Type / Size CMOS, 35.6 x 23.8 mm
Lens Mount Sony E-Mount
Camera Format Full-Frame
Pixels Actual: 28.3 MegapixelEffective: 24.2 Megapixel
Max Resolution 24 MP: 6000 x 4000
Aspect Ratio 3:2, 16:9

Focus Control

Autofocus Points Phase Detection: 693Contrast Detection: 25
Focus Mode Continuous-Servo AF (C), Direct Manual Focus (DMF), Manual Focus (M), Single-servo AF (S)
Focus Type Auto & Manual


Built-in Flash No
Max Sync Speed 1 / 250 Second
Flash Compensation -3 EV to +3 EV (in 1/3 or 1/2 EV steps)
Dedicated Flash System P-TTL
External Flash Connection Hot Shoe, PC Terminal

Exposure Control

Shutter Type: MechanicalSpeed: 30 - 1/8000 Second , Bulb ModeType: ElectronicSpeed: 30 - 1/32000 Second in Bulb Mode
ISO Sensitivity Auto, 100-51200 (Extended Mode: 50-204800)
Metering Method Center-Weighted Average Metering, Multi-Zone Metering, Spot Metering, Highlight Weighted
Exposure Modes Modes: Aperture Priority, Auto, Manual, Program, Shutter PriorityMetering Range: EV -3.0 - EV 20.0Compensation: -5 EV to +5 EV (in 1/3 or 1/2 EV Steps)
White Balance Modes Auto, Cloudy, Color Temperature, Custom, Daylight, Flash, Fluorescent (Cool White), Fluorescent (Day White), Fluorescent (Daylight), Fluorescent (Warm White), Incandescent, Shade, Underwater
Continuous Shooting Up to 20 fps at 24.2 MP for up to 362 frames in JPEG formatUp to 20 fps at 24.2 MP for up to 241 frames in raw formatUp to 10 fps at 24.2 MPUp to 5 fps at 24.2 MPUp to 2.5 fps at 24.2 MP

AV Recording

Video Recording Yes, NTSC/PAL
Video Format 3840 x 2160p at 24, 25, 30 fps (100 Mbps XAVC S via H.264)3840 x 2160p at 24, 25, 30 fps (60 Mbps XAVC S via H.264)1920 x 1080p at 100, 120 fps (100 Mbps XAVC S via H.264)1920 x 1080p at 100, 120 fps (60 Mbps XAVC S via H.264)1920 x 1080p at 24, 25, 30, 50, 60 fps (50 Mbps XAVC S via H.264)1920 x 1080p at 50, 60 fps (28 Mbps AVCHD via H.264)1920 x 1080i at 50, 60 fps (24 Mbps AVCHD via H.264)1920 x 1080i at 50, 60 fps (17 Mbps AVCHD via H.264)1920 x 1080p at 24, 25 fps (24 Mbps AVCHD via H.264)1920 x 1080p at 24, 25 fps (17 Mbps AVCHD via H.264)1920 x 1080p at 50, 60 fps (28 Mbps MP4 via H.264)1920 x 1080p at 25, 30 fps (16 Mbps MP4 via H.264)1280 x 720p at 25, 30 fps (6 Mbps MP4 via H.264)
Aspect Ratio 16:9
Video Clip Length Not specified by manufacturer
Audio Recording Built-In Mic: With Video (Stereo)Optional External Mic: With Video)
Expert Reviews
Camera labs.32824899
2 May 2017

Sony's Alpha A9 is a new flagship mirrorless camera with a 24 Megapixel full-frame stacked CMOS sensor and fully electronic shutter featuring 20fps shooting, silent vibration-free operation, anti-distortion shutter, 1/32000 shutter, 4k video, dual SD slots, bigger battery, touchscreen and AF...

Dp review.32823956
14 June 2017

The Sony a9 is more than just a refinement of the company's a7-series of full-frame mirrorless cameras; it's an evolution. With meaningful ergonomic and user interface improvements, the a9 is a polished and highly capable camera.

3 weeks ago

Sony's new camera matches Canon and Nikon's best pro DSLRs—for thousands less.

User Reviews
B h photo.32817553
4 June 2017

I'm a professional photographer who has used Canon my whole career. I had been eyeing Sony for awhile due to my intrigue on their technology, and the fact that a few of my friends and colleagues had started shooting with their products, and raved about them.

28 May 2017

The a9 has specs that have not been combined in one camera before: it's full-frame with 20fps, totally silent electronic shutter with minimal distortion (how much, that is still to be determined), 1/32000s, 3.7MP 120fps EVF, touchscreen, AF joystick, PDAF covering 93% of the sensor, 5-step IBIS,...

Dp review.33575663
15 June 2017

The A9 is the first full frame camera with tilting touch screen, just like my three-year old A5100. The A9 has decent phase-detection technology, too, with even more PDAF points than on my A5100 to get the brilliant video touch-to-spot-focus exclusively available only on Sony touch screen cameras...

B h photo.32817553
2 weeks ago

Form, function and engineering combine to make a truly remarkable camera. All hype aside, this is an outstanding piece of equipment. The focus acquisition speed is incredible, image quality is excellent, and the build quality and feel of the machine are exceptional.

B h photo.32817553
2 weeks ago

I was a Canon shooter and then moved to the Nikon system. Was always looking at the mirrorless systems but felt it wasnt ready for professional work. Then I saw the announcement of the a9 and it caught my attention and all the features I was looking for.

B h photo.32817553
3 weeks ago

As a Sony Artisan of Imagery I was able to test the camera a few weeks ago and was impressed byt the fast AF, shutter speed, image quality and dynamic range. Can't recommend it enough for fast shooters (sports, fashion etc).

B h photo.32817553
3 weeks ago

As an Artisan of Imagery I was able to test the a9 a few weeks ago and was blown away by the fast AF, shutter speed and huge buffer. Image quality is top notch, and dynamic range impressive.

B h photo.32817553
3 weeks ago

A long-time Nikon user, I jumped to Sony a few years back and use the A99 and the previous A7r camera. This one, by far, is the best camera I have owned and used. It's lighting fast, includes more options, is more intuitive to use, and feels great in my hands.

B h photo.32817553
4 weeks ago

I had the opportunity to use this camera at the Sony Alpha Collective Kando Trip 1.0 a few weeks ago in California. Just picking this camera up, I could feel the improvements over the previous Sony models. It just felt sturdy. The autofocus tracking is like a cheat code honestly.

B h photo.32817553
4 weeks ago

I sure wanted to love this camera... I've been on the Sony train since the NEX-5 in 2010. I've enjoyed the journey and in the process I've funded Sony's R&D. Each step has been great leading up to the a7rii which is so stellar.

Product Highlights
  • 24.2MP Full-Frame Stacked CMOS Sensor
  • BIONZ X Image Processor
  • Blackout-Free Quad VGA 3.7m-Dot OLED EVF
  • 3.0" 1.44m-Dot Tilting Touchscreen LCD
  • Internal UHD 4K Video & S-Log3 Gamma
  • S&Q Motion in Full HD from 1-120 fps
  • 20 fps Shooting with AF/AE Tracking
  • 693-Point Phase-Detection AF System
  • 5-Axis SteadyShot INSIDE Stabilization
  • Mag. Alloy Body, Dual SD Card Slots
Average Expert Score
Average User Score
In The Box
  • Sony Alpha a9 Mirrorless Digital Camera (Body Only)
  • NP-FZ100 Rechargeable Lithium-Ion Battery
  • AC-UUD12 AC Adapter
  • Power Cord
  • Cable Protector
  • Body Cap
  • Accessory Shoe Cap
  • Eyepiece Cup
  • Micro USB Cable
  • Shoulder Strap
  • Limited 1-Year Warranty
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