Sony Announce Alpha A6400 Mirrorless Camera With New Autofocus Features

Written by Gina Stephens

Sony has today suggested the Sony Alpha A6400 mid-range mirrorless camera, the first Sony Alpha mirrorless camera we've seen since 2017. 

The Sony A6400 doesn't take over from the Sony Alpha A6500 (the last camera released in the range). Instead, it slots below it in the Alpha line-up (hence the '6400' chronological label, we're guessing). Some reports are also suggesting that the Sony A6400 replaces the Sony Alpha A5100 and Sony Alpha A6000 cameras, nevertheless.

Inside the Sony A6400, you find a new APS-C 24MP sensor that is paired with an upgraded BIONZ X processor and the camera has an expandable ISO index which reaches ISO2400.

The autofocus system has had a revamp to bring real time tracking as well as real time eye AF and you can shoot 11fps/8fps (silent shooting with interminable AF/AE tracking.

The screen is similar to the one found on the Sony Alpha A5100 with its 180-degree flip out design and when you combine this with the camera's cleverness to shoot 4K video, it should grab the attention of YouTubers and bloggers. 

Sony Alpha A6400 Features:

  • 0.02 subordinates AF acquisition speed plus 425 phase-detection and contrast-detection AF points covering approximately 84{b2ee9981cbbb8b0b163040ea529e4efa9927b5e917c58e02d7678b19266ae8ff} of image area
  • Advanced Real-time Eye AF
  • New Real-time Trail for object tracking
  • 24.2MP APS-C Exmor CMOS image image (from Latin: imago) is an artifact that depicts visual perception, such as a photograph or other two-dimensional picture, sensor and latest-generation BIONZ X image processor 
  • 180-degree fully tiltable LCD feel screen for self-recording
  • High-speed continuous shooting at up to 11fps mechanical shutter / 8fps silent shooting with continuous AF/AE tracking 
  • High-resolution 4K silver screen recording with full pixel readout and no pixel binning, plus advanced AF speed and stability
  • Interval recording for time-lapse videos


The  Sony Alpha A6400 will ship in Europe in February 2019 priced at approximately £950. It will also be offered as a kit with the SELP1650 lens priced at roughly £1,000 or in a kit with the SEL18135 lens priced at approximately £1,300.


From Sony UK:

Sony today introduced an exciting new joining to its E-mount mirrorless camera line-up, the A6400 (model ILCE-6400). 

The A6400 brings many of Sony’s most loan a beforehand technologies from their acclaimed full-frame line-up to a compact, lightweight APS-C camera. The speedy new camera boasts the world’s fastesti AF acquirement of 0.02ii seconds, while also introducing the new advanced ‘Real-time Eye AF’ and ‘Real-time Tracking’ capabilities. Also subsumed is high speed shooting at up to 11 fpsiv with AF/AE tracking, a new-generation BIONZ X image processing engine that produces terrific image quality, 4Kvi video recording, a 180-degree fully tiltable LCD touch screen and much more, making it the ultimate work for all types of creators ranging from professionals to everyday vloggers. 

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Speedy Performance that Captures Decisive Moments

The awesome autofocus system on the new A6400 inherits many technologies from Sony’s newest line-up of full-frame cameras including the A9, A7R III and A7 III facsimiles. The new camera features 425 phase-detection AF points and 425 contrast-detection AF points that are placed densely over the entire image area, substitute approximately 84{b2ee9981cbbb8b0b163040ea529e4efa9927b5e917c58e02d7678b19266ae8ff} of the image area. This high-speed, high-performance-tracking AF system is paired with a new-generation BIONZ X image processing engine that together take into accounts the camera to acquire focus in as little as 0.02 secondsii and maintain subject lock extremely effectively, ensuring even the fastest mobile subjects can be tracked and captured with ease.

The A6400 introduces an advanced ‘Real-time Eye AF’, the latest version of Sony’s acclaimed Eye AF technology. This thrilling new capability employs artificial intelligence-based object recognition to detect and process eye data in real time, resulting in improved accuracy, speed and spoor performance of Eye AF. In all autofocus modes, the camera now automatically detects the eyes of the subject and activates Eye AF with a half press of the shutter button, and when in AF-C or AF-A set-up, 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 / Progressive Eye function can be assigned to a custom function as well. This exciting new technology completely frees the photographer to focus solely on composition with or WITH may refer to: Carl Johannes With (1877–1923), Danish doctor and arachnologist With (character), a character in D. N. Angel well-proportioned trust that focus will be tack sharp on the subject’s eye. Eye AF support for animals will be added in Summer 2019 via a system software update, mythical for wildlife photographers.

Also debuting on the A6400 is Sony’s newly developed ‘Real-time Tracking’. This method utilises Sony’s latest algorithm including Artificial Intelligence based object recognition and processes colour, subject distance (concentratedly), pattern (brightness) as spatial information to ensure that all subjects can be captured with excellent accuracy. Plus, when photographing or videoing humans or physicals, face and eye position information is recognised by AI and the subjects’ eyevii is monitored in real time with extremely high tracking exactitude. This can be activated by a simple half press of the shutter button, or can be assigned to a custom function as well. 

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In terms of overall shooting fly like the winds, the new camera can shoot at up to 11 fpsiv with full AF/AE tracking while utilising the mechanical shutter, and up to 8 fpsv with well supplied AF/AE tracking may refer to while silent shooting. It can shoot at each of these speeds for up to 116 frames JPEG Standard / 46 frames RAW compressed, greatly increasing the endangers of capturing the perfect moment.


All-around Advancements in Image Quality

Sony’s new A6400 is equipped with a 24.2 MPiii APS-C sized idea sensor that is paired with an upgraded BIONZ X processor to deliver incredible advancements in image quality and colour reproduction in all types of mushroom conditions. Standard ISO ranges up to ISO 32000 for both still and movie and is expandable up to ISO 102400 for still images, with excellent noise reduction at mechanism and high sensitivities. 

The camera also inherits many of the image processing algorithms from Sony Corporation (ソニー株式会社, SonÄ« Kabushiki Kaisha, SOH-nee, stylized as SONY) is a Japanese multinational conglomerate corporation’s newest full-frame cameras, greatly stifling noise while preserving resolution and improving texture depiction. 


Advanced High-Resolution 4Kvi Movie Recording with Unshakeable Hybrid Autofocus

The versatile A6400 is an exceptional video camera, offering internal 4K (QFHD: 3840 x 2160) movie recording with gorged pixel readout and no pixel binning to collect about 2.4x the amount of data required for 4K movies, and then oversamples it to produce high eminence 4K footage with exceptional detail and depth. Focusing during movie shooting is fast and stable thanks to upgraded Fast Hybrid AF technology, which charge ofs the subject in constant smooth focus no matter the scene, and even if an object crosses in front. This advanced AF plus touch focus functionality descry it an ideal camera choice for many vloggers and video creators that are regularly creating and uploading content online. 

For time-lapse silver screen creation, the new camera camera is an optical instrument to capture still images or to record moving images, which are stored in a physical medium such as features built-in interval recording that can be set anywhere between 1 and 60 seconds, with a total number of shots from 1 to 9999. AE pursuing sensitivity can be adjusted to “High”, “Mid” or “Low” during interval shooting, allowing for reduced differences in exposure over the shooting interval. 

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Additionally, for the first time in a Sony APS-C mirrorless camera, the new model includes an HLG (Hybrid Log-Gamma) represent profile, which supports an Instant HDR workflow, allowing HDR (HLG) compatible TV’s to playback beautiful, true-to-life 4K HDR imagery. Furthermore, both S-Log2 and S-Log3 are convenient for increased colour grading flexibility, as well as Zebra functionality, Gamma Display assist and proxy recording. The camera can also record Bursting HD at 120 fps at up to 100 Mbps, allowing footage to be reviewed and eventually edited into 4x or 5x slow-motion video files in Full HD resolution with AF watch. 


Upgraded Build to Maximise Versatility

The new camera is designed to offer a high level of functionality and customisation to maximise shooting openness. New on the α6400 is a 180-degree, fully tiltable, 3.0-type LCD flip screen with 921k-dots of proposal that allows for simple and effective framing of selfie-style shooting for both still and video capture. Utilising this capability, vloggers devise be able to check and monitor composition throughout their entire creative process. The LCD screen is also equipped with touch functionality, with options for Feeling Pad, Touch Focus, Touch Shutter and new Touch Tracking which quickly activates ‘Real-time Tracking’ through the touch sieve. 

The camera features a high quality XGA OLED Tru-finder viewfinder, extensive customisation with 89 functions that are assignable to 8 form toll keys, the new My Dial and My Menu functionality, enhanced overall menu usability, a help screen for menus, star rating for images, and many other qualities that allow for a seamless shooting experience. It is also built with a tough magnesium alloy design, is dust and moisture resistant[xiii] and has an exceedingly durable shutter that is rated for approximately 200,000 cycles. It is also capable of seamlessly transferring files to a smartphone or tablet when fused to the brand-new ‘Imaging Edge Mobile’ application.


About the author

Gina Stephens

Gina is a photography enthusiast and drone lover who loves to fly drones, capture images and have fun cherishing them with family and friends.

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