Sony a9 : Tests and Reviews
Sony a9 Review
Sony a9 sensor review: Game changer?
The Sony a9 is the Japanese manufacturer’s latest flagship mirrorless offering, boasting a raft of high-performance features for action photographers. The 24.2Mp stacked CMOS sensor offers up to 20x faster sensor readout times, with an electronic shutter capable of impressively quick 1/32,000-second shutter speed, and blackout-free continuous shooting. The electronic shutter and mirrorless design facilitates super-fast 20fps continuous shooting, with AF/AE tracking as well as silent camera operation. The 693-point phase detection autofocus system also boasts coverage across the entire frame, enabling easier framing and improved tracking, as well as low light autofocus
Sony a9 side by side comparisons
Sony a9 versus predecessor
Sony a9 versus Canon model
Sony a9 versus Nikon model
Sony a9 versus rival model with similar score
Try our side-by-side camera comparison tool
Further readings for the Sony a9
To provide photographers with a broader perspective about mobiles, lenses and cameras, here are links to articles, reviews, and analyses of photographic equipment produced by DxOMark, renown websites, magazines or blogs.
 |
As the only lens reaching 400mm currently in the lineup, the Sony FE 100-400mm F4.5-5.6 GM OSS is an important addition for Sony full-frame E-mount cameras such as the action-oriented A9 and some A7 variants. It will also appeal to owners of such cropped-sensor APS-C models as the A6000, on which it offers nearly the equivalent field of view of a 200-600mm lens. |
 |
The Sony a9 is the Japanese manufacturer’s latest flagship mirrorless offering, boasting a raft of high-performance features for action photographers. The 24.2Mp stacked CMOS sensor offers up to 20x faster sensor readout times, with an electronic shutter capable of impressively quick 1/32,000-second shutter speed, and blackout-free continuous shooting. |
 |
The Sony FE 100mm F2.8 STF GM OSS is a short-telephoto prime for Sony full-frame mirrorless E-mount cameras such as the high-end a9 and the earlier A7 models. Besides being a G-Master model with high-grade optics and build, it has number of interesting features that make it stand out as a highly specialized lens for portraiture. First is the inclusion of optical image stabilization, which can be used to complement the camera’s sensor-shift stabilization (where applicable); and second is the use of an apodization filter or APD element as part of the optical construction. |
 |
The Sony FE 85mm F1.8 is a high-speed standard prime for Sony full-frame E-mount cameras such as the A9 and A7 cameras, but will also fit smaller “cropped” sensor APS-C models such as the A5000, on which it offers an equivalent field of view of a 130mm focal length. |