The Sony a9 combines several powerful features together in one body to make a flagship multimedia system. It features 4K full frame video, exhibits significantly reduced rolling shutter effects (choose between mechanical shutter or rolling shutter modes), and supports un-cropped 1080p slow motion up to 120 FPS. Uncompressed HDMI out enables the use of optional external recorders for clean 4K recording with 4:2:2 sampling while internal 4K recording is possible in frame rates up to 30 FPS (at 30 FPS, drops down to Super 35mm). Enhanced Zebra function allows for easy monitoring of exposure values with video signal level targets that can be set from 0-109 while a built-in time code feature assists in more precise editing later.

Packed inside the weather sealed, magnesium-alloy a9 body is 5-axis SteadyShot INSIDE image stabilization that corrects for both pitch and yaw adjustments. The 693 AF points cover around 93% of the image area, dense enough for extremely fast and accurate focusing of moving subjects. For manual focusing, a peaking function will highlight your sharpest areas or you can also use the built-in focus magnifier. Thanks to the stacked Exmor RS CMOS sensor system, data processing speed is 20x faster than previous Sony full frame mirrorless cameras. All of these features make the a9 an ideal camera for videography.

Photographers enjoy up to 20 FPS shooting speeds and maximum shutter speeds of up to 1/32,000th of a second. Dual SD cards slots allow for shooting raw + JPEG easily or be assigned as "overflow". For clear viewing, a quad-VGA OLED Tru-Finder EVF features an impressive 3.686m-dot resolution and 120 FPS refresh rate for clear, bright, and smooth eye-level viewing that's 2x greater than the EVF in previous Sony full frame mirrorless cameras. The physical controls are intuitive and appealing to those who like the feel of more traditional cameras (and includes a joystick for direct AF point selection). Additionally, the battery life has been improved and sports 2.2x the capacity of the NP-FW50 used in prior Sony full frame mirrorless systems (approximately 480 images per charge).

The Sony a9 is ideal for just about any project, both video or still. It is best suited to low-light work, hybrid shooting for events like weddings and conferences (especially helped by the camera's silent shutter), and for multimedia projects.