Sony a6400 Review

Sony a6400 Review

The Alpha A6400 is Sony’s newest APS-C mirrorless camera, and it replaces the Alpha A6300 as the model that sits directly below the Alpha A6500 in the company’s lineup.

The top-of-the-line A6500 camera is over two years old; however, Sony has equipped the Alpha A6400 with some of its most recent technology, notably the advanced AF system. As a result, this camera may prove to be a more tempting proposition than the A6500, which has been on the market for a long.

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Last update was on: May 27, 2023 3:53 am

Sony a6400 Features

The Alpha A6400 possesses a 24.2 megapixel APS-C Exmor CMOS sensor, the same as the A6300 and the A6500. However, because it has a front-end LSI and the most recent version of the BIONZ X image processor, Sony claims its processing rates are 1.8 times quicker than those of the A6300.

These enhancements have also allowed Sony to stretch the new camera’s ISO ceiling to an expanded upper limit of 102,400, compared to the A6500’s 51,200 (the A6400’s native range is 100-32,000). Additionally, Sony claims that color reproduction has been dramatically improved due to these enhancements.

The absence of any in-body image stabilization, which the A6500 has thanks to its 5-axis system, is a notable omission from the A6400. Instead, users of the A6400 will need to rely on lens-based stabilization. While many of Sony’s APS-C-specific zoom lenses come equipped with the company’s Optical SteadyShot (OSS) technology, many of the company’s prime lenses do not.

The electronic viewfinder (EVF) on the Alpha A6400 is identical to the one on the Alpha A6300 and the Alpha A6500; it has 2.36 million dots and magnifies images by 0.7 times. In addition, the back of the camera features a display three inches in size with a resolution of 921 thousand dots.

The display on this screen is touch-enabled, unlike the one on the A6300, but it still has the same 16:9 aspect ratio, which can be a little annoying. This aspect ratio is excellent if you plan to shoot many videos. However, it causes the display to be significantly smaller when taking still images and adds black bars on either side of the picture.

The fact that the display can be angled upwards by 180 degrees is a feature that vloggers will find particularly useful because it makes it easier to frame oneself in the video.

Sony a6400 Build Quality.

Although Sony claims that the build quality of the Alpha A6400 has improved compared to that of the Alpha A6300, it is not apparent exactly how or where these improvements were made. In any case, the body of the Alpha A6400 is made of magnesium alloy and is sealed to prevent dust and moisture from getting inside. Additionally, Sony has improved the shutter, which now has a lifespan of 200,000 cycles, twice as long as the A6300’s shutter.

The body of the A6400 follows a form factor identical to that of other cameras in the A6000 series, including its decent-sized handgrip. In addition, the control layout of the A6400 is the same as that of the A6300. There are a good number of controls that are clearly labeled on the back of the camera, and there is also a control wheel that is free to move around, which makes it easy to navigate menus and examine images.

You cannot navigate the A6400’s comprehensive menu system, even though this has been updated compared to the A6300’s interface, with six color-coded sub-menus making it that much easier to navigate. In addition, Touchscreen functionality is limited to tap focus, tap shutter, and defining subjects for Tracking. This is the same as on all of Sony’s other cameras.

Sony a6400 Autofocus

To say that the focusing technology of the Sony Alpha A6400 is complex would be an understatement. Furthermore, Sony’s promise that the A6400 has the world’s quickest autofocus at just 0.02 seconds only tells a small portion of the tale.

The new camera’s hybrid autofocus system provides 84% frame coverage. In addition, it has 425 phase-detect points and 425 contrast-detect AF points, which increases from the Alpha A6300’s 25 contrast-detect AF points.

This is the first Sony camera to be equipped with Real-time EyeAF and Real-time Tracking technology, both of which were recently developed by Sony (both features are coming to the Alpha A9 via a significant firmware update in March the Alpha A7R III and A7 III in April).

Real-time Tracking uses Sony’s most recent predictive and recognition algorithms, such as AI-based object recognition and color, subject distance (depth), pattern (brightness), and spatial information, not to mention face and eye detection. In addition, real-time Tracking also uses spatial information.

Sony a6400 Performance

The Alpha A6400 has sophisticated autofocus technology, and it can shoot up to 11 frames per second while maintaining its AE and AF capabilities. The buffer performance of the A6400 has been enhanced compared to that of the A6300. The A6400 can now take 116 JPEG photographs, whereas the A6300 can only take 30. Additionally, the capacity for shooting raw has been raised from 21 to 46 shots (although interestingly, the A6500 has the upper hand here, capturing 200 JPEGs in a single burst at 11fps or 107 raw files). If you wish to shoot without making any noise, you may do it at eight frames per second.

When it comes to the metering, we discovered that the A6400 was, for the most part, a reliable performer, with just a slight tendency toward underexposure on occasion; however, this tendency is negligible, and it’s often by only around half or a third of a stop, so it can easily be remedied with a touch of exposure compensation, or in the raw processing that occurs after the image has been captured.

On the other hand, the auto-white balance mechanism of the A6400 does an excellent job of correctly reproducing colors in various scenarios. It even impresses in situations that are generally troublesome due to the presence of artificial sources.

Sony a6400 Image Quality

The APS-C Exmor CMOS sensor with 24.2 megapixels is utilized by the Alpha A6400, as the Alpha A6300 and Alpha A6500 also use it. However, the A6400 features the most recent iteration of Sony’s BIONZ X image engine, which the company thinks produces even higher image quality.

We put the A6400 through its paces with several lenses, including the Sony E 18-135mm f/3.5-5.6 OSS, the FE 24-70mm f/4 ZA OSS, and the FE 55mm f/1.8 ZA, and the results showed that the photos produced by each combination were evident and detailed.

The JPEGs taken immediately after being taken by the camera have a remarkable appearance; the contrast and clarity are both of a high caliber.

Sony a6400 Specs

Body typeRangefinder-style mirrorless
Body materialMagnesium alloy
Max resolution6000 x 4000
Image ratio w h1:1, 3:2, 16:9
Effective pixels24 megapixels
Sensor photo detectors25 megapixels
Sensor sizeAPS-C (23.5 x 15.6 mm)
Sensor typeCMOS
ProcessorBionz X
Color spacesRGB, Adobe RGB
Color filter arrayPrimary color filter
ISOAuto, 100-32000 (expands to 102800)
Boosted ISO (maximum)102800
White balance presets10
Custom white balanceYes
Image stabilizationNo
Uncompressed formatRAW
JPEG quality levelsExtra fine, fine, standard
File formatJPEG (Exif v2.31)Raw (Sony ARW)
Optics & Focus
AutofocusContrast Detect (sensor)Phase DetectMulti-areaCenterSelective single-pointTrackingSingleContinuousTouchFace DetectionLive View.
Autofocus assist lampYes
Manual focusYes
Number of focus points425
Lens mountSony E
Focal length multiplier1.5×
Articulated LCDTilting
Screen size3″
Screen dots921,600
Touch screenYes
Screen typeTFT LCD
Live ViewYes
Viewfinder typeElectronic
Viewfinder coverage100%
Viewfinder magnification1.07× (0.71× 35mm equiv.)
Viewfinder resolution2,359,296
Photography features
Minimum shutter speed30 sec
Maximum shutter speed1/4000 sec
Exposure modesProgramAperture priorityShutter priorityManual
Scene modesPortrait, Sports Action, Macro, Landscape, Sunset, Night Scene, handheld Twilight, Night Portrait, Anti-Motion Blur
Built-in flashYes
Flash Range6.00 m (at ISO 100)
External flashYes (via hot shoe)
Flash modesOff, auto, on, slow sync, rear sync, redeye reduction, wireless, hi-speed sync
Flash X sync speed1/160 sec
Drive modesSingle shootingContinuousSelf-timerBracketing (AE, WB, DRO)
Continuous drive11.0 fps
Metering modesMultiCenter-weightedHighlight-weightedAverageSpot
Exposure compensation±5 (at 1/3 EV, 1/2 EV steps)
AE Bracketing±5 (3, 5 frames at 1/3 EV, 1/2 EV, 2/3 EV, 1 EV, 2 EV steps)
WB BracketingYes
Videography features
FormatMPEG-4, H.264
Modes3840 x 2160 @ 30p / 100 Mbps, XAVC S, MP4, H.264, Linear PCM3840 x 2160 @ 30p / 60 Mbps, XAVC S, MP4, H.264, Linear PCM3840 x 2160 @ 24p / 100 Mbps, XAVC S, MP4, H.264, Linear PCM3840 x 2160 @ 24p / 60 Mbps, XAVC S, MP4, H.264, Linear PCM1920 x 1080 @ 120p / 100 Mbps, XAVC S, MP4, H.264, Linear PCM1920 x 1080 @ 120p / 60 Mbps, XAVC S, MP4, H.264, Linear PCM1920 x 1080 @ 60p / 50 Mbps, XAVC S, MP4, H.264, Linear PCM1920 x 1080 @ 60p / 25 Mbps, XAVC S, MP4, H.264, Linear PCM1920 x 1080 @ 60i / 24 Mbps, AVCHD, MTS, H.264, AAC1920 x 1080 @ 50i / 17 Mbps, AVCHD, MTS, H.264, AAC1920 x 1080 @ 30p / 25 Mbps, XAVC S, MP4, H.264, Linear PCM1920 x 1080 @ 30p / 16 Mbps, XAVC S, MP4, H.264, Linear PCM
Storage typesSD/SDHC/SDXC/Memory Stick DUO (UHS-I compliant)
USBUSB 2.0 (480 Mbit/sec)
USB chargingYes
HDMIYes (micro-HDMI)
Microphone portYes
Headphone portNo
Wireless notes802.11b/g/n + NFC + Bluetooth 4.1
Remote controlYes (via smartphone)
Environmentally sealedYes
BatteryBattery Pack
Battery descriptionNP-FW50
Battery Life (CIPA)410
Weight (inc. batteries)403 g (0.89 lb / 14.22 oz)
Dimensions120 x 67 x 60 mm (4.72 x 2.64 x 2.36″)
Other features
Orientation sensorYes
Timelapse recordingYes

Sony a6400 Verdict

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Sony Alpha a6400 Mirrorless Camera: Compact APS-C Interchangeable Lens Digital Camera with...

& Free shipping
Last update was on: May 27, 2023 3:53 am

One might be forgiven for believing the Sony Alpha A6400 is a minor update over the A6300. The most noteworthy enhancements are the flip-out screen and a few other tweaks to the camera’s design. However, it also retains several deficiencies in the A6300, the most notable of which is the lack of in-body image stabilization.

The number of phase-detect points may be the same, but the intelligent work that goes on behind the scenes moves things along. In addition, the A6400 has a compelling focusing technology, making this truly fascinating.

It is, without a doubt, one of the most advanced systems we have seen on any camera, and the fact that it is on a camera that costs less than one thousand dollars or one thousand pounds is even more astounding.

The focus has been significantly refined, making this camera far more user-friendly than its predecessors.

If this camera can help you increase your hit rate thanks to its advanced autofocus, that can be a good thing. Of course, we’d still like better touchscreen integration to help deliver a more streamlined shooting experience, but if this camera can help you increase your hit rate regardless of the subject you’re shooting, it’s a win-win.

Sony a6400 FAQs

Is an a6400 worth buying?

The Sony a6400 is a camera that should be considered for purchase due to the superior autofocus system, high picture quality, and small body size.

Is Sony a6400 a good beginner camera?

Because of its high price and high sophistication, the Sony a6400 may not be the best option for beginning photographers, despite its mandated features.

Is the Sony Alpha a6400 discontinued?

The Sony Alpha a6400 has not been officially put out of production as of March 2023.

Can I use Sony A6400 in the rain?

Even though the Sony a6400 does not have a weather-sealing feature, it can still be used safely in conditions such as moderate drizzle or mist.

Is Sony a6400 a DSLR or mirrorless?

The Sony a6400 is not a DSLR but a mirrorless camera type.

Is a 6400 suitable for portrait photography?

Because of its sophisticated precision and high-quality images, the Sony a6400 can be used for headshot photography.

Does the Sony a6400 have a touch screen?

The Sony a6400 has a touch screen that makes navigating the menus and selecting the focal point simple.

Does the Sony A6400 overheat?

During prolonged video recording, the Sony a6400 may experience problems with overheating, but it has significantly improved heat dissipation compared to earlier versions.

Is Sony a6400 good for product photography?

Because of its highly developed autofocus and high-quality images, the Sony a6400 can be an excellent option for taking pictures of products.

Is Sony A6400 good in low light?

Because of its high ISO range and picture stabilization technology, the Sony a6400 does perform admirably even when the available light is low.

How long does the Sony A6400 battery last?

The amount of pictures that can be taken on a single charge with the Sony a6400 is listed at around 360, but this number can change depending on how the camera is used.

Does Sony a6400 have eye focus?

The Sony a6400 does come equipped with sophisticated ocular autofocus.

Does an a6400 have a flip screen?

The screen on the Sony a6400 can be flipped up, making it ideal for taking selfies and for recording.

Does the Sony a6400 have a silent shutter?

The Sony a6400 does come equipped with a silent capture setting.

Does Sony a6400 have clear image zoom?

Yes, the Sony a6400 is equipped with clear image zoom, which enables digital zooming while preserving the clarity of the picture.

Can you use a 6400 while charging?

Yes, you can continue using the Sony a6400 even while it is charging with a power supply that is appropriate for it.

Is Sony a6400 suitable for landscape?

Because of its high resolution and sophisticated precision, the Sony a6400 can be an excellent option for taking photographs of landscapes.

Why is my Sony a6400 blurry?

Various things, such as camera shake, circumstances with poor light, or incorrect focus settings can cause the blurriness that the Sony a6400 can produce.

Why is my Sony a 6400 grainy?

Setting the Sony a6400 to a high ISO or shooting in low light can lead to graininess in the captured images.

Is Sony a6400 suitable for travel?

Because of its small size and numerous sophisticated features, the Sony a6400 can be an excellent option for taking photographs while traveling.



Joseph is a talented photographer and videographer based in the USA, with a thriving career as a freelance creative. Over the past several years, he has had the privilege of working with renowned brands, capturing captivating images and videos. His portfolio encompasses a diverse range of subjects, specializing in fashion, portrait, and lifestyle content creation. From editorial shoots to engaging social media videos, Joseph's versatile skills ensure exceptional visual storytelling in every project. Beyond his professional endeavors, he nurtures a personal passion for travel and nature photography, channeling his deep appreciation for the environment into a commitment to sustainability and environmental causes.

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