Fast-Paced Full-Frame Mirrorless
Bringing the speed Sony mirrorless shooters have been waiting for, the a9 Mirrorless Camera takes impressive multimedia capabilities and ups the processing capabilities for ultra-fast continuous shooting.
Full-Frame Stacked Sensor and BIONZ X Processing
24.2MP Full-Frame Exmor RS CMOS Sensor
Poised for speed, the a9 features a first-for-full-frame 24.2MP Exmor RS stacked CMOS that affords impressively quick readout speeds to benefit up to 20 fps continuous shooting and UHD 4K video recording. The sensor's back-illuminated design also affords high sensitivity to an extended ISO 204,800 with reduced noise for clean image quality in a variety of lighting conditions. Additionally, uncompressed raw files can be recorded in 14-bit for greater color fidelity and post-production flexibility.
BIONZ X Image Processor and Electronic Shutter
Working in conjunction with the stacked CMOS sensor is an apt BIONZ X image processor that ensures quick processing speeds to keep up with fast-paced shooting applications:
- Continuous shooting up to 20 fps is supported for up to 362 consecutive JPEGs, or 241 raw frames
- Top electronic shutter speed of 1/32,000 for working in bright lighting conditions
- Quick AF/AE metering system that functions at 60 times per second to continuously evaluate the scene in order to lock onto and track moving subjects
- Totally blackout-free monitoring is possible with the electronic viewfinder for more accurate compositions of moving subjects
Autofocus and Image Stabilization
693-Point Phase-Detection AF
Covering 93% of the image area, a phase-detection autofocus system incorporates 693 points along with 25 contrast-detection areas for quick and precise focusing in a variety of lighting conditions with sensitivity down to -3 EV. The density of focusing points from this hybrid AF system also enables High-density Tracking AF Technology, which is adept at tracking moving subjects in a variety of lighting conditions.
- Lock-on AF maintains focus on moving subjects through the use of a configurable frame that is set over the desired moving subject
- Expand Flexible Spot employs neighboring focus points to retain focus on moving subjects even if the originally selected point loses focus
- Eye AF can be used to base focus on recognized subjects' eyes for portraits and is available in both AF-S and AF-C modes
- Focus Magnifier function can be used for critical focus when homing in on minute subject details
5-Axis SteadyShot INSIDE Image Stabilization
Packed into the robust-but-compact body is a 5-stop effective 5-axis SteadyShot INSIDE image stabilization system that compensates for five different types of camera shake encountered during handheld shooting of stills and video. This allows users to confidently use any lens, even adapted lenses, for critical imaging without encountering blur from camera shake.
For long focal lengths, the system will correct for pitch and yaw adjustments. Macro and high-magnification imagery, on the other hand, will benefit from the inclusion of horizontal and vertical shift compensation. All shooting styles will get usage out of the roll compensation. All 5 axes of stabilization will function at all times, even when used with third-party lenses and adapters or lenses with built-in optical stabilization.
For long focal lengths, the system will correct for pitch and yaw adjustments. Macro and high-magnification imagery, on the other hand, will benefit from the inclusion of horizontal and vertical shift compensation. All shooting styles will get usage out of the roll compensation. All 5 axes of stabilization will function at all times, even when used with third-party lenses and adapters or lenses with built-in optical stabilization.
UHD 4K Video Recording in XAVC S Format
Internal recording of UHD 4K video is possible in multiple frame rates up to 30 fps and uses 2.4x oversampling, which renders greater detail, and full pixel readout is possible, too, for higher quality imagery with reduced moiré and aliasing. Full HD 1080p recording is also supported in frame rates up to 120 fps, and both 4K and FHD resolutions utilize the 100 Mb/s XAVC S format contained within an MP4 wrapper with 4:2:0 sampling.
The high-speed, 120 fps recording also enables 4x and 5x slow-motion movie recording with the frame rate set to either 30p or 24p. In addition to high-resolution internal recording, uncompressed HDMI output also enables the use of an optional external recorder for clean 4K recording with 4:2:2 sampling.
Body Design
- Quad-VGA OLED Tru-Finder features a 3.68m-dot resolution and a 0.78x magnification for bright and clear viewing. The EVF also sports a ZEISS T* anti-reflective coating to reduce reflections and a high 120 fps refresh rate can be used to reduce lag for a smoother viewing experience. Additionally, a fluorine coating has been applied to the outermost viewfinder element to benefit cleaning.
- Rear 3.0" 1.44m-dot tilting touchscreen LCD is available for live view shooting and menu navigation. The touchscreen enables Touch Focus for intuitive adjustment of your focus point, and the tilting design benefits working from both high and low angles.
- Magnesium-alloy body design is both lightweight and durable, and also weather-sealed for use in trying environmental conditions.
- Dual SD card slots provide a more flexible means for storing files. The lower card slot supports UHS-II type cards, and the slots can be configured to do an in-camera backup, segregated raw/JPEG recording, or overflow saving.
- Stacked drive mode and focus mode dials, a dedicated AF-ON button, and a rear multi-selector all afford greater efficiency when switching focus modes, points, or exposure settings.
Connectivity
- Integrated LAN terminal enables making wired FTP transfers for notably fast transfer speeds. Also, the first three characters of the file name can be customized for easier organization during post-production.
- Built-in Wi-Fi enables the a9 to instantly share imagery to mobile devices for direct sharing online to social networking, via email, and to cloud storage sites. NFC (Near Field Communication) is also supported, which allows for one-touch connection between the camera and compatible mobile devices; no complex set-up is required. Once connected, the linked mobile device can also display a live view image on its screen and remotely control the camera's shutter.
- Bluetooth connectivity allows for location data acquisition.
- Integrated PC sync terminal for wired flash sync with strobe packs or wireless radio remotes.