Sony Alpha a9

Announced Apr 19, 2017 •
24 megapixels | 3 screen | Full frame sensor
Product description
Announced Apr 19, 2017

The Sony Alpha a9 is the company's flagship full-frame mirrorless camera. It features a 24MP stacked CMOS sensor which permits 20 fps burst shooting without the 'blackout' found on traditional DSLRs courtesy of its electronic shutter. Its autofocus system has been improved, with a total of 693 phase-detect points covering 93% of the image area and Eye AF that's 30% better compared to the a7R II. The camera has an ISO range of 50-204,800 when fully expanded and 14-bit uncompressed Raws can be saved. It can also record oversampled UHD 4K video.

The magnesium alloy body is weather-sealed, has onboard 5-axis image stabilization, and offers two dials plus a joystick for selecting an AF point. The large EVF has 3.7 million dots and the tilting 3" LCD is touch-enabled. The a9 sports two SD card slots (both support UHS-II media) plus an Ethernet jack allowing users to transfer files over FTP.

Product timeline
Review, Jun 14, 2017
Quick specs
Body type SLR-style mirrorless
Max resolution 6000 x 4000
Effective pixels 24 megapixels
Sensor size Full frame (35.6 x 23.8 mm)
Sensor type BSI-CMOS
ISO Auto, ISO 100-51200 (expands to 50-204800)
Lens mount Sony E
Focal length mult. 1×
Articulated LCD Tilting
Screen size 3
Screen dots 1,440,000
Max shutter speed 1/8000 sec
Format MPEG-4, AVCHD, H.264
Storage types Dual SD/SDHC/SDXC slots (One of which UHS-II compatible)
USB USB 2.0 (480 Mbit/sec)
Weight (inc. batteries) 673 g (1.48 lb / 23.74 oz)
Dimensions 127 x 96 x 63 mm (5 x 3.78 x 2.48)
GPS None

See full specifications

Our review

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. It may not be a go-to camera for landscape and studio photographers, but its compact dimensions, silent operation, abundant speed and blackout-free shooting make it not only a step forward for mirrorless, but a compelling proposition for professionals who can't afford to miss a moment.

Good for: Sports, peak action, wedding, event and child photography, photojournalism

Not so good for: Landscape and studio photographers for whom resolution and dynamic range are important considerations

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Scoring
Build quality
Ergonomics & handling
Features
Metering & focus accuracy
Image quality (raw)
Image quality (jpeg)
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Movie / video mode
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Value
Sony a9 Presidents Cup gallery
27 images • Posted on Nov 2, 2017 • View gallery
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Sony a9 real world samples gallery
100 images • Posted on Apr 27, 2017 • View gallery
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