Sony Alpha a6400 Mirrorless Camera

Advanced APS-C camera with 24.2 MP Exmor® CMOS sensor, the World’s fastest autofocus (AF) speed1at 0.02 sec., advanced Real-time Eye-AF and Real-time object Tracking AF with Wide 425-phase/425-contrast detection AF points over 84% of sensor, up to 11fps continuous shooting with continuous autofocus and auto-exposure,4K HDR video, 180-degree tiltable touchscreen LCDand Wi-Fi® for easy file transfer and remote control.

24.2MP and incredible image quality
The a6400’s APS-C image sensor with approximately 24.2 effective megapixels uses copper wiring and a highly effective circuit process, resulting in efficient light collection that achieves a wide sensitivity range (Expandable ISO 100 – 102400) and excellent low noise performance even at high ISO. The design significantly increases readout speed, enabling functionality including 11fps continuous shooting, 4K recording with full pixel readout without pixel binning and Full HD 120fps high-speed shooting. A front-end LSI supports the image processing of the new-generation BIONZ X image processing engine. Advances in image processing algorithms have further improved the superb image clarity, texture reproduction and image quality.

World’s fastest autofocus with 4D FOCUS™
"The α6400’s unrivaled 4D FOCUS™ system boasts the world’s fastest autofocus (AF) acquisition time that can lock focus on even the fastest moving subject in as little as 0.02 seconds. It also boasts an incredible 425 phase detection and 425 contrast detection AF points that are densely positioned over 84% of the image area, effectively tracking subjects as they move across the frame. Moreover, the α6400 takes full advantage of its enhanced fast hybrid AF for movies in both HD and 4K. With the optimized new-generation subject motion prediction algorithm from the α9. Both AF detection accuracy and tracking performance have been boosted.

Advanced Real-time Eye-AF
Advanced “Real-time Eye AF” employs artificial intelligence to detect and process eye data in real time, resulting in improved accuracy, speed and tracking performance of Eye AF. With a half press of the shutter button, the camera can automatically detect the eyes of the subject and activate Eye AF in all autofocus modes and when in either AF-C or AF-A mode, eye capture is continuously maintained. Additionally, the preferred eye (left or right) of your subject can be selected as the focus point. Choices include Auto/Right Eye/Left Eye, and a Switch Right/Left Eye function is assignable to a custom function as well.

Real-time Tracking AF
Real-time Tracking” utilizes a special object recognition algorithm that processes color, subject distance (depth), brightness (pattern) as spatial information, plus AI information including face and eye location, ensuring that all subjects can be captured with extreme accuracy and precision. This can be activated by a simple half press of the shutter button, or can be assigned to a custom function as well.

Up to 11fps at 24.2MP with AE/AF tracking
The α6400 has been designed to allow for high resolution, continuous shooting at high frame rates. It features a front-end LSI that works with the image sensor, BIONZ X image processing engine and a newly designed shutter mechanism with ‘braking feature’ to enable continuous shooting at impressive speeds up to 11fps with continuous autofocus and auto-exposure tracking at full 24.2MP resolution while utilizing the mechanical shutter, and up to 8 fps3 with full AF/AE tracking while silent shooting. The α6400 can also shoot continuously for up to 116 JPEG and 46 compressed RAW frames, thanks to a large buffer. These shots can be viewed immediately after shooting, even when in high-speed continuous shooting mode.

4K movie2 w/ 2.4x oversampling4, full pixel readout, no pixel binning
The α6400 offers internal 4K (QFHD: 3840 x 2160) recording in Super 35mm format with full pixel readout and no pixel binning at 2.4x oversampling (6K equivalent) for the ultimate 4K footage with exceptional detail and depth. Additional professional video features include; HDR (HLG), S-Gamut3/S-Log3and 3, plus Gamma Display Assist, the ability to record Full HD at 120 fps for up to 5x slow motion HD video, both a mic jack and XLR compatibility via the MI shoe, enhanced Zebra functionality, focus peaking, picture profile settings, as well as Time Code / User Bit, clean HDMI output and much more.

Fast Hybrid AF allows smooth focusing for movies
Effective use of the focal plane phase-detection system makes focusing during movie shooting fast and stable. The upgraded Fast Hybrid AF technology keeps your subject in constant smooth focus no matter the scene. This advanced AF plus touch focus functionality on the 180-degree titlable LCD make it an ideal camera choice for many vloggers and video creators that are regularly creating and uploading content online. Touching the subject that you wish to focus on the screen initiates accurate and smooth continuous focus tracking, while analyzing color, brightness pattern, distance (depth) and face information. AF drive speed and AF Tracking Sensitivity are also adjustable to support creative moviemaking.

180-degree fully tiltable LCD touch screen for self-recording
The fully tiltable (180-degree), 3” (3.0-type) LCD flip screen with 921k-dots of high-resolution allows for simple and effective selfie-style shooting for both still image and video capture. Utilizing this capability, vloggers will be able to check and monitor composition throughout their entire creative process. The LCD screen is also equipped with touch functionality, with options for Touch Pad, Touch Focus, Touch Shutter and new Touch Tracking which quickly activates “Real-time Tracking” through the touch screen.

A wide variety of touch screen operations
The LCD offers a wide variety of touch operations enabling intuitive shooting and fast focus operation. The Touch Focus function allows the desired focus point to be specified instantaneously by touching the subject on the monitor. Touch Shutter function instantaneously focuses on the subject touched on the monitor and releases the shutter, so that the desired subject can be captured with one touch. The touchpad function allows smooth focus position adjustment while using the viewfinder. Sliding a finger across the monitor moves the focus area position and can be moved smoothly while looking through the viewfinder. Touch Tracking function, works by touching the subject that you wish to focus on the screen and then half-pressing the shutter button activates Real-time Tracking. When shooting movies, touching the subject initiates tracking that maintains focus on the subject.

Interval recording for time-lapse videos
Time-lapse movies document changes with the passing of time. The a6400 features built-in interval recording, for time-lapse movie creation, that can be set anywhere between 1 and 60 seconds, with a total number up of shots from 1 to 9999. AE tracking sensitivity can be adjusted to “High”, “Mid” or “Low” during interval shooting, allowing for reduced changes in exposure over the shooting interval. The still images shot can then be edited into a time-lapse movie on a computer with the Viewer software from the Imaging Edge software suite. A convenient variable-speed preview function is also provided to get an image, on the camera, of how the finished movie will look. Combining with silent shooting means that you need not worry about durability of the mechanical shutter. When interval shooting is carried out over a long period, the camera can use an optional mobile battery or the multi-battery adaptor kit NPA-MQZ1K to supply power (not provided), so shooting outdoors and/or for extended periods is worry-free.

HDR video with LG (Hybrid Log-Gamma)
HLG (Hybrid Log-Gamma) picture profile that supports an instant HDR workflow. Recorded movies played back on an HDR (HLG) compatible TV, without the need for color grading, will appear true-to-life, with no blocked shadows or blown highlights. The BT.2020 color space is supported, providing a wider color gamut. Four gamma settings are provided (HLG, HLG1, HLG2, HLG3). The HLG setting conforms to ITU-R BT.2100, while The HLG1, HLG2, and HLG3 gamma settings provide wider dynamic range. The balance of dynamic range and noise produced by each setting is different, allowing selection to best match the scene being recorded.

S-Log shooting support
The S-Log3 and S-Log2 Gamma curves feature wide dynamic range (up to 1300%) to minimize whiteout and blackout, and permit wider movie expression by performing color grading in post-production. The S-Log3 gamma setting further realizes a 14-stop latitude. The S-Gamut, S-Gamut3, and S-Gamut3.Cine color spaces are handled. A wide variety of professional end-uses such as cinema and broadcast are supported.

Zebra function
Checking exposure is often difficult especially when shooting movies in the S-Log setting, but the Zebra function is provided to simplify the task. The Zebra display brightness level standard is IRE 0 – 109%, and the target range can be set freely between +10% and -10% of a selected value in 1% increments. This helps users to easily adjust exposure whether shooting still images, 4K video and when using S-Log2 and S-Log3, by specifying the target value and range of the exposure level for Zebra display in accordance with their intentions. Furthermore, users can set a minimum brightness level.

Gamma Display Assist8
Gamma Display Assist8 is a function that allows users to monitor images or check focus while enlarging images of natural contrast when recording in the S-Log setting. It converts S-Log and S-Log into ITU709 (800%) gamma for monitoring on the LCD screen or viewfinder.

Ultra-fast OLED w/ EVF benefits and optical viewfinder immediacy
The 2.36 million-dot XGA OLED Tru-Finder electronic viewfinder has the ability to deliver continuous live shooting at up to 8 fps with AF/AE tracking - making it easy to track fast moving subjects - thanks to overall improvements in the EVF algorithm. This offers photographers a shooting experience with the immediacy of an optical viewfinder, while still offering all of the benefits of an electronic viewfinder including a live preview of exposure, white balance and several other camera settings. The viewfinder frame rate can be selected at either “Standard” or “High” to match the subject.

Slow and quick motion9
Slow and quick motion offers an almost endless variety of creative ways to express the passage of time. Video shooting frame rate are selectable in 8 steps from 1fps to 120fps, and the recording frame rate is selectable from 24p/30p/60p. Capture Full HD up to 50 Mbps with up to 5-times slow motion and up to 60-times quick motion.

Rugged body and durable shutter mechanism
Designed for solid reliability and steady handling, the compact α6400 is built to withstand the rigors of shooting in the field, thanks to an internal structure of the strong and rigid magnesium alloy body. The highly durable and reliable shutter unit has been proven to endure approximately 200,000 shutter releases which ensure long-lasting shooting performance that takes into consideration the high-speed continuous shooting capabilities up to 11fps and the large number of photos shot by enthusiasts.

Make it your own with easy button and dial customization
Make operation more intuitive, quick and easy. You can assign any of 89 functions to any of 8 custom buttons. Independent function sets can be assigned for stills, movies, and playback. “My Dial” allows for frequently-used functions to be assigned to the control dial and control wheel. The My Menu function allows up to 30 frequently-used menu items to be registered. They can be re-ordered by frequency of use, and little-used items can be deleted, allowing the user to create a menu that reflects their usage patterns.

Wi-Fi®/NFC™/QR code for easy file transfer and remote control11
Easily connect with NFC or QR code (for non-NFC devices) to smartphones or tablets with the built-in Wi-Fi® and Sony’s Imaging Edge mobile application available for free on the Android™ and iOS platforms. Control your camera or transfer photos and video to your device for fast and easy sharing without the need of a computer.

16-bit processing and 14-bit RAW output
The a6400 employs 16-bit processing and 14-bit RAW output for natural gradations. The digital signal from the image sensor’s AD converter is processed in 16-bit form by the front-end LSI and BIONZ X processor before being output as 14-bit RAW data to the memory card. The result is smoother, more natural gradations that contribute to higher overall image quality. Compressed and uncompressed 14-bit RAW format are supported.

High-quality view mode for finer, natural detail
A menu setting allows viewfinder and monitor display quality to be set to “Standard” or “High.” The “High” mode takes maximum advantage of the data read from the 24.2 effective megapixel sensor to provide extra fine viewfinder and monitor displays, with finer detail and a more natural overall view that can be a huge advantage when focus is critical. The Standard setting provides longer battery life.

Monitor OFF selectable via DISP button
A new “Monitor OFF” selection has been added for the DISP button while shooting. When “Monitor OFF” is selected the monitor will be off except during image playback and when using the menus. This can be useful when shooting the night sky or in other situations where a bright monitor might be a distraction.

GPS location data via Bluetooth
The α6400 offers location data acquisition via a Bluetooth connection to a compatible mobile device with Imaging Edge Mobile App installed. After the camera has been paired to the Imaging Edge Mobile installed on a compatible mobile phone or tablet device, it can acquire location data from the mobile device and record that data with still images. The acquired location data can also be used to correct the camera’s date/time and location settings.

Silent Shooting
Silent Shooting features an electronic shutter that is noiseless so you can shoot high-resolution images in situations that require complete silence. Continuous autofocus and auto exposure is available when using silent shooting.

AF accuracy in dark scenes
Advanced AF algorithm contribute to high AF precision in AF-S mode down to light levels as low as EV-2 (ISO 100 equivalent, F2.0 lens), a step darker than the α6300. Shooting using highly precise AF is possible even in dark scenes.

More detailed face detection settings
The face detection feature has been updated with individual AF Face Detection Priority [ON/OFF], Face Detect Frame Display [ON/OFF] and Multi AE Face Detect Priority [ON/OFF] settings that were not available on the α6300. This provides the flexibility needed for a variety of situations, such as where face priority needs to be applied in AF only, for example.

AF in Focus Magnifier
When shooting stills, it is possible to use autofocus while the selected image area is magnified in the viewfinder or monitor. You can even magnify the view after autofocus has been achieved for finer focus confirmation or refocusing. Since this function can be used to focus on an area smaller than the Flexible Spot, it is ideal for macro photography and other situations where focus must be precise.

Additional 1:1 image aspect ratio
In addition to 3:2 and 16:9 aspect (width: height) ratios, the 1:1 aspect ratio used by Instagram etc. can also be selected. This eliminates the need for cumbersome hand-trimming of images after shooting before they can be posted on social media.

Proxy recording
4K movies and lower-resolution proxy movies can be recorded simultaneously. Proxy movie files are smaller than the corresponding 4K files, and are therefore ideal for quick previewing or pre-editing that can reduce the time required for final 4K editing.

Photo Capture (image extraction from movies)
Users can select, extract and save still images of decisive moments from movie footage (frame grabs). High-quality 8-megapixels stills can be extracted from 4K video and 2-megapixels from Full HD video in camera during playback and stored as separate files on the media card.

Peaking function makes manual focus even easier
The excellent performance of the advanced BIONZ X image processor has improved the detection accuracy of the peaking function that color-highlights the most sharply focused area during manual focus and direct manual focus shooting. It’s now easier than ever to identify the focus peak areas during the delicate focusing required in macro or portrait shooting. Blue has been added to the peaking colors (red, yellow, white). The expanded range of colors from which an easily-visible peaking color can be selected, depending on the subject and environment, improves the visibility when using the peaking display.

AF tracking sensitivity adjustment
When shooting movies, the sensitivity with which autofocus will follow subjects that move outside the focus area can be adjusted. Sensitivity should be set [High] for subjects at varying distances which require repeated refocusing, whereas the [Standard] setting can prevent the focus from jumping to new objects and maintain stable focus on a subject that is briefly obscured by other objects.

ISO value display while movie shooting
When shooting movies in ISO Auto mode, the current ISO value can be constantly displayed. If concerned about noise levels in a dark location, for example, the user can monitor the current ISO value.

Additional initial focus magnification setting
When shooting movies, it is now possible to set the initial focus magnification. In addition to the current 1x > 4x, a new 4x only setting has been added. Through the setting of frequently-used magnifications, the number of focus magnification operations can be minimized.

4K movie transfer to smartphone
By using the newly introduced smartphone app Imaging Edge Mobile, high-bitrate movies including 4K can be transferred to smartphones (Probability of transfer / playback depends on the performance of the smartphone). Refer to the product information for Imaging Edge Mobile for details

Microphone jack and XLR adaptor kit compatible
The a6400 provides a microphone jack for an external microphone and a MI (Multi-interface) shoe which provides direct connectivity to a range of compatible MI-shoe microphones. The MI-shoe also provides line input via optional XLR adaptor kits (XLR-K2M/XLR-K1M) that allow the connection of many types of pro (XLR) microphones. A modest audio set-up with some noise reduction supports better sound quality suitable for serious movie shooting or self-shooting for vlog.

High bitrate Full HD high-speed recording at 120 fps2
High-quality slow-motion sequences can be created during post-production processing as high-speed Full HD recording at 120 fps2 is supported. A max. 100 Mbps high bit rate recording is possible with XAVC S2 format.

Enhanced menu usability
An illustration to indicate position of camera control keys and buttons are added to the custom settings screen. A glance confirms which button or switch one is attempting to assign to. Another improvement in menu usability is that function menu options can be viewed when setting the function menu, improving ease of operation.

Restricted display of AF area and ISO display limit
On the AF area setting screen, a new function has been added that displays only focus area types that the user uses frequently. Another new function on the ISO setting screen displays only frequently-used ISO ranges. These allow setting changes to be made efficiently while shooting. These display restrictions apply even when “Switch Focus Area” is assigned to a custom button.

Improved AWB control
Auto white balance can now be locked or unlocked at any time with the “AWB Lock function”. This is convenient when one wants to fix auto white balance in an environment with multiple (artificial and natural) light sources. Setting the white balance color temperature has been simplified as well as reducing the steps in setting of custom white balance. With “Priority Set in AWB”, when white balance is set to Auto and incandescent lamps or similar are the light source, the color tone priority can be set to Standard, Ambience, or White. Ambience priority produces a warm tone, while white priority produces accurate white reproduction.

Power supply via USB "The α6400 can be powered via USB connection to AC adaptor, a PC or mobile battery. This conserves the camera’s battery, allowing you extended use of the camera without worrying that the battery will run out. When the camera is turned off, the battery can be charged via the same connection.

Among interchangeable-lens digital cameras equipped with an APS-C image sensor as of January 2019, based on Sony research, measured using CIPA-compliant guidelines, and internal measurement method with an E 18-135mm F3.5-5.6 OSS lens mounted, Pre-AF off and viewfinder in use.

² SDHC/SDXC memory card of Class 10 or higher is required for movie recording in XAVC S format.UHS-I (U3) SDHC/SDXC card is required for 100Mbps recording. Movie recording is possible for approximately 29 minutes.

³ High-speed continuous shooting is available at up to approx. 11fps in “Hi+” continuous shooting mode and up to approx. 8fps in “Hi” continuous shooting mode. Maximum fps will depend on camera settings.

⁴ With "Hi" continuous shooting mode. Sony internal measurement.

⁵ The latest version of Imaging Edge “Viewer” and PlayMemories Home desktop applications are required

⁶ Connect this product to an HDR (HLG) compatible Sony TV via a USB cable when displaying HDR (HLG) movies.

⁷ S-Log2 and S-Log3 functions assume video processing after shooting.

⁸ The Gamma Display Assist function is not available for monitoring on external displays and television sets.

⁹ Sound cannot be recorded during S&Q. SDHC/SDXC memory card of Class 10 or higher is required. Full HD up to 50 Mbps; 60x quick motion/5x slow in NTSC and 50x quick motion/4x slow in PAL.

¹⁰ Based on Sony research .

¹¹ The latest version of Imaging Edge Mobile is required for the smartphone or tablet device. Mobile devices that can communicate with this camera via Bluetooth are the following (as at the release date of this camera): Android terminals (Android 5.0 or later, Bluetooth 4.0 or later), iPhone/iPad iPhone 4S or later / iPad（3rd generationor later). Please refer to detailed instructions at http://www.sony.net/pmm/btg/