Key Features
Unparalleled AF performance is the key to beautiful shots
Fast and accurate autofocus lets you capture fleeting moments in stunning detail, thanks to a combination of innovative technologies. A total of 425 phase-detection AF points work in conjunction with contrast-detection AF to achieve a remarkable 0.02 sec. speed, while High-density AF Tracking Technology follows even erratically moving subjects.
More accurate autofocus in dim lighting
Highly accurate autofocus is now possible even in dark settings, thanks to advances in the AF algorithm. With this model, the lower limit on the AF detection brightness range has been reduced to EV-2 when in AF-S mode.
AF in Focus Magnifier for finer focus adjustment
When extra-accurate autofocus is called for, such as when you're taking macro shots, you can display a magnified view of the general area you want to focus on, then finely adjust the exact point of focus in the viewfinder or on the LCD screen.
Easier manual focus with an improved peaking function
The camera's peaking function colour-highlights the most sharply focused section of the entire image area when you're using manual focus. Now blue has been added to the display's other peaking colours (red, yellow and white) to improve the visibility of the focus peak areas when you're doing the delicate focusing required for macro or portrait shooting.
Real-time Tracking holds the focus on tracked subjects
When you're tracking a fast-moving subject, the camera's improved automatic subject motion tracker uses a newly developed subject recognition algorithm that draws on colour, pattern (brightness), subject distance (depth) and face/eye information to recognise, and hold onto, your subject.
Enhanced Real-time Eye AF supports portrait shooting
Real-time Eye AF detects and autofocuses on the eyes of your subjects when you half-press the shutter. Either the left eye, the right eye, or auto can be specified, and when AF-C is set it maintains a stable focus even when part of the face is hidden, the face is backlit or the subject is facing downwards.
Sophisticated features for easier movie-making
The a6400 facilitates the workflow of professional videographers with a wide range of functions, including clean HDMI output, time code / user bits (TC/UB), rec. control, marker display/setting, zebra function, Slow & Quick Motion, simultaneous proxy movie recording, extraction and separate storage of a still from a movie, Gamma Display Assist function, and in-monitor display of current ISO value when shooting with ISO Auto, among others.
Support for professional-quality mic and audio input
External microphones can be attached via the microphone jack, and there is also an option for line input via XLR connectors using the camera's separately available XLR adaptor kit, which enables connection with various high-end microphones for professional-level audio.
Interval shooting for the creation of time-lapse movies
Continuous shooting with a set interval between 1 and 60 seconds is now available within the camera, and the resulting still images can be edited into a time-lapse movie on a PC using the Viewer application from the Imaging EdgeTM desktop applications. A simple variable-speed preview function allows you to see an image, on the camera, of how the finished movie will look.
180º-tiltable LCD screen with versatile touch functions
The high-resolution 921k-dot LCD has a 3.0-type screen and tilts upward a full 180º for easy framing of self-portraits and vlogs. The LCD's intuitive touch operations include Touch Pad (smoothly move the focus point), Touch Focus (set the focus point), Touch Shutter (release the shutter), and Touch Tracking (activate Real-Time AF).
Smooth display on the OLED viewfinder
The high-contrast, high-resolution XGA OLED Tru-FinderTM provides high visibility, fine details even in dark areas, accurate colours and smooth displays at either 60fps or 120fps, with the framerate selectable for smoother viewing. Standard and High quality settings are available for both the viewfinder and the LCD monitor.
One-touch remote, One-touch sharing, Location Information Link
The One-touch remote feature turns your mobile device into a viewfinder and remote control, while One-touch sharing allows photos and videos to be transferred to your device for social media sharing. The camera can also acquire location data via Bluetooth. (These mobile device features are available via Sony's Imaging Edge Mobile app.)
Sturdy, durable construction for robust operation
The camera's low-vibration shutter mechanism is designed and tested to withstand around 200,000 shutter cycles, and the body, top cover and front cover use a light but highly rigid magnesium alloy. Major buttons and dials are sealed, and casing components have an interlocked double-layer structure to resist dust and moisture.
Imaging Edge Remote, Viewer, and Edit
Elevate your photography with Imaging Edge desktop applications. Use "Remote" to control and monitor shooting live on your PC screen; "Viewer" to quickly preview, rate, and select photos from large image libraries; and "Edit" to develop RAW data into high-quality photos for delivery. Get the best from Sony RAW files, and manage your productions more efficiently.
Works with iMovie and Final Cut Pro X
This product is compatible with Final Cut Pro X and iMovie.
Custom functions for greater operability
The camera's eight keys and controls can be custom-assigned to any of 89 shooting and replay functions, and frequently used functions can also be assigned to the control dial and control wheel with My Dial. My Menu allows flexible assignment of 30 menu items, and the custom settings screen helps keep track of everything. Help displays are available on the menu screen via a single button.
User-interface improvements for efficient settings control
A new feature displays frequently used ISO ranges on the ISO setting screen, and another displays frequently used focus-area types on the AF area-setting screen. And when using Flexible Spot mode you can now cycle the AF area up, down, right and left - useful when shooting sporting scenes where the subject moves frequently within the AF area.
Greater control over white-balance settings
If set in advance, auto white balance can now be locked or unlocked at any time, for more consistent colour tones when there are multiple light sources. Custom setting of white balance has been simplified, and you can now select an AWB priority setting when shooting with incandescent lighting - either warmer Atmosphere Priority, or White Priority for purer whites.
More versatile flash functions
When shooting with compatible wireless flash units, rear-curtain sync and slow sync can now be selected, increasing your creative options for lighting.
Easier ratings and protection from deletion
Still images can be given a rating or protected from deletion, and both functions can be accessed via pre-assigned custom keys.
Advances in remote camera control
When doing remote shooting using the Remote app from the Imaging Edge desktop applications, you can now use the overlay display to make precise adjustments to focus and composition while checking the live view on your PC screen.
High speed continuous shooting with AF/AE tracking
Capture all the action with continuous shooting at up to 11fps (with after view), or 8fps (with silent shutter) and 8fps (for live view). Display lag has been minimised, and up to 116 JPEG (Standard) images can be shot, with group display available. Camera operability and access to various features while writing data have also been greatly improved.
An innovative image-processing system
The camera's APS-C size, 24.2-megapixel ExmorTM CMOS sensor provides a wide sensitivity range and excellent low-noise performance. In conjunction with the new-generation BIONZ XTM image processing engine, it delivers beautiful, high-resolution images with superb image clarity and texture reproduction.
Extraordinary image quality, low noise and a wider ISO range
Maximum standard ISO sensitivity has been increased to ISO 32000 (expanded to ISO 102400 for stills), while improved imaging algorithms, detail reproduction technology and area-division noise reduction result in more realistic textures, better detail in shadow regions, and more lifelike colours, including human skin tones and natural plant colours.
Newly added 1:1 aspect ratio for easier social-media shots
In addition to 3:2 and 16:9 aspect (width-to-height) ratios, the 1:1 aspect ratio used by social media platforms is now offered as an option. This eliminates the need for cumbersome hand-trimming of images after shooting in preparation for posting on social media.
14-bit RAW output with rich tonal gradation
When you're shooting in RAW format, the 14-bit digital signals that are converted from analog in the image sensor are passed to the front-end LSI and BIONZ X, where they undergo 16-bit processing before converting back to 14-bit RAW image output. This leads to smoother, more natural tonal gradation in these images.[1] Image Sensor [2] The latest high-speed front-end LSI [3] 16-bit Image processing
4K movie recording in high-bit-rate XAVC S format
Super 35mm format, 4K movie recording with full pixel readout and no pixel binning allows oversampling with approx. 2.4x as much information as is required for 4K (QFHD: 3840 x 2160), adding up to the equivalent of 6K and giving these images more realistic depth. High-bit-rate (max. 100Mbps) XAVC S format, a consumer-friendly version of a format for professional use, plus HLG support result in better-looking movies.
Steady, precise AF tracking for better movies
Fast Hybrid AF brings high speed, accuracy and tracking performance to meet the stringent autofocus demands of 4K movies. AF tracking sensitivity can be adjusted for either stable focus or responsive refocusing, depending on the nature of the scene, and Touch Tracking lets you initiate tracking of a moving subject simply by touching the LCD screen.
S-Gamut/S-Log shooting
S-Log shooting gives you flexibility to make more expressive movies by performing colour grading in post-production. The S-Log3 and S-Log2 gamma curves feature a wide dynamic range (up to 1300%) that can help minimise blown highlights and blocked shadows. The S-Log3 gamma setting also provides an impressive 14-stop latitude.
Slow and Quick motion, and high-speed 120fps recording
Slow motion (up to 5x) and quick motion (up to 60x) can be recorded in camera in high-quality Full HD, and no PC-based post-processing is required to view your slow-motion and quick-motion footage. Additionally, high bit-rate recordings of up to 100Mbps in Full HD can be used to create high-image-quality slow-motion movies in post-production.
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