Sony ILCE-6400M User Manual
ILCE-6400M/B
α6400 Mirrorless APS-C Interchangeable-Lens
Camera with 18-135mm lens
Advanced APS-C camera with 24.2 MP Exmor® CMOS
sensor, the World’s fastest autofocus (AF) speed1 at 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
shooting3 with continuous autofocus and auto-exposure,
4K HDR video2, 180-degree tiltable touchscreen LCD
and Wi-Fi® for easy le transfer and remote control.
Key Features
24.2MP and incredible image quality
The a6400’s APS-C image sensor with approximately 24.2 eective megapixels uses copper wiring
and a highly eective circuit process, resulting in ecient light collection that achieves a wide
sensitivity range (Expandable ISO 100 – 102400) and excellent low noise performance even at
high ISO. The design signicantly increases readout speed, enabling functionality including 11fps
continuous shooting3, 4K recording2 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 autofocus1 with 4D FOCUS™
The α6400’s unrivaled 4D FOCUS™ system boasts the world’s fastest autofocus (AF) acquisition
time1 that can lock focus on even the fastest moving subject in as little as 0.02 seconds1. It also
boasts an incredible 425 phase detection and 425 contrast detection AF points that are densely
positioned over 84% of the image area, eectively 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 4K2. 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 articial 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 (le or right) of your subject can be
selected as the focus point. Choices include Auto/Right Eye/Le Eye, and a Switch Right/Le 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 11fps3 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 11fps3 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 frames4, thanks to a large buer. These shots can be viewed immediately aer
shooting, even when in high-speed continuous shooting mode.
4K movie2 w/ 2.4x oversampling4, full pixel readout, no pixel binning
The α6400 oers internal 4K (QFHD: 3840 x 2160) recording2 in Super 35mm format with full pixel
readout and no pixel binning at 2.4x oversampling4 (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 video7, both a mic jack and XLR compatibility via the MI shoe, enhanced
Zebra functionality, focus peaking, picture prole settings, as well as Time Code / User Bit, clean
HDMI output and much more.
Fast Hybrid AF allows smooth focusing for movies
Eective 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 ip screen with 921k-dots of high-resolution
allows for simple and eective sele-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 oers a wide variety of touch operations enabling intuitive shooting and fast
focus operation. The Touch Focus function allows the desired focus point to be specied
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 viewnder. Sliding a nger across the monitor moves the focus area
position and can be moved smoothly while looking through the viewnder. Touch Tracking
function, works by touching the subject that you wish to focus on the screen and then halfpressing 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 soware from the Imaging Edge soware suite5. A convenient variablespeed preview function is also provided to get an image, on the camera, of how the nished
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) 6 picture prole that supports an instant HDR workow. Recorded
movies played back on an HDR (HLG) 6 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 dierent, allowing selection to best match the scene being recorded.
S-Log shooting support
7
The S-Log3 and S-Log2 Gamma7 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 enduses such as cinema and broadcast are supported.
Zebra function
Checking exposure is oen dicult especially when shooting movies in the S-Log setting7, 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 video4
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 Assist
8
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-Log2 and
S-Log3 into ITU709 (800%) gamma for monitoring8 on the LCD screen or viewnder.
Ultra-fast OLED w/ EVF benets and optical viewnder immediacy
The 2.36 million-dot XGA OLED Tru-Finder electronic viewnder 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 oers photographers a
shooting experience with the immediacy of an optical viewnder, while still oering all of the
benets of an electronic viewnder including a live preview of exposure, white balance and
several other camera settings. The viewnder frame rate can be selected at either “Standard” or
“High” to match the subject.
Slow and quick motion
9
Slow and quick motion9 oers 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 eld, 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 releases10 which ensure long-lasting shooting performance that takes into
consideration the high-speed continuous shooting capabilities up to 11fps3 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 reects their usage patterns.
Wi-Fi®/NFC™/QR code for easy le transfer and remote control
11
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 platforms11. 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 ner, natural detail
A menu setting allows viewnder 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 eective megapixel
sensor to provide extra ne viewnder and monitor displays, with ner 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 o 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 oers location data acquisition via a Bluetooth connection to a compatible mobile
device with Imaging Edge Mobile App installed11. Aer 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.
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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 exibility needed for a variety of situations,
such as where face priority needs to be applied in AF only, for example.
AF in Focus Magnier
When shooting stills, it is possible to use autofocus while the selected image area is magnied in
the viewnder or monitor. You can even magnify the view aer autofocus has been achieved for
ner focus conrmation 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
aer shooting before they can be posted on social media.
Proxy recording
4K movies and lower-resolution proxy movies can be recorded simultaneously. Proxy movie les
are smaller than the corresponding 4K les, and are therefore ideal for quick previewing or preediting that can reduce the time required for nal 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 video3 and 2-megapixels from
Full HD video in camera during playback and stored as separate les on the media card.
Peaking function makes manual focus even easier
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