Sony A6400 vs A7iii

Sony A6400 Vs A7III – Check Which One Is Best & Why?

Sony A6400 & A7III share many similarities, but there are also important differences, such as image quality, performance, features, design, and connectivity. If you want the best one between them, I Would recommend the Sony A7III rather than the Sony A6400. 

Why Do I Recommend The Sony A7III

  • The Sony A7III features a full-frame sensor, which provides superior low-light performance, dynamic range, and shallow depth of field. On the other hand, the Sony A6400 has an APS-C sensor.
  • Sony A7III’s 693 phase-detection points cover a larger area, providing better tracking for fast-moving subjects compared to Sony A6400’s 425 phase-detection points.
  • It has a broader ISO range (100-51200, expandable to 50-204800) which provides superior performance in low-light conditions compared to the A6400 (100-32000).
  • The Sony A7 III records 4K without cropping, ensuring high-quality footage, while the A6400 has a 1.5x crop in 4K mode.
  • It features 5-axis in-body image stabilization for handheld shooting, while the A6400 lacks stabilization, relying on lens-based systems.
  • The Sony A7 III offers 710 shots in a single charge for extended shooting sessions but the Sony A6400 can take upto 410 shots.

Maybe the Sony A6400 price can make you comfortable because it’s a little bit cheaper than the Sony A7III. But you have to compromise all the above-mentioned features. Now the Decision is Yours. I hope it was helpful to choose the right one.

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Side By Side Comparison

FeatureSony A7IIISony A6400
Sensor TypeFull-frame CMOS sensorAPS-C CMOS sensor
Sensor Size35.6 x 23.8 mm23.5 x 15.6 mm
ISO Range (Native)100–51,200100–32,000
Image ProcessorBIONZ X with front-end LSIBIONZ X
Autofocus Points693 phase-detection425 phase-detection
Autofocus Coverage93% of frameApprox. 84% of frame
Continuous ShootingUp to 10 fpsUp to 11 fps
Viewfinder Type2.36M-dot OLED EVF2.36M-dot OLED EVF
Battery Life710 shots (LCD), 610 (viewfinder)410 shots (LCD), 360 (viewfinder)
Video Recording4K at 30p (full-pixel readout)4K at 30p (1.5x crop)
In-Body Stabilization5-axis in-body stabilizationNone
Card SlotsDual SD card slotsSingle SD card slot
Build MaterialMagnesium alloyMagnesium alloy + plastic
Weight650 g (body only)403 g (body only)
Weather SealingComprehensive sealing against dust/moistureLess extensive weather sealing
Custom Buttons4 customizable buttonsLimited customizable buttons
Top DialExposure compensation dialNo dedicated exposure compensation dial
Headphone JackYesNo
PriceCheck A7III PriceCheck A6400 Price

What Common Both Can Do?

  • Megapixels and Image Quality: Both cameras feature 24.2 MP sensors, ensuring excellent image resolution suitable for most photography needs, from portraits to landscapes.
  • Image Processor: The BIONZ X image processor in both cameras enables fast image processing and noise reduction, ensuring sharp and high-quality images even in challenging lighting conditions.
  • ISO Sensitivity: Both models offer wide ISO ranges, making them capable of excellent low-light performance and delivering detailed images in various lighting environments.
  • Video Resolution: Both cameras record 4K video at up to 30 frames per second, making them suitable for high-quality video recording for filmmakers and content creators.
  • Autofocus Technology: With Real-Time Eye AF and Real-Time Tracking, both cameras excel in maintaining sharp focus on subjects, even in motion or unpredictable scenarios.
  • Electronic Viewfinder (EVF): The 2.36M-dot OLED electronic viewfinder in both models provides a bright and detailed preview of images, aiding in precise composition and focus.
  • LCD Screen Size: Both cameras are equipped with 3-inch LCD screens, offering a clear and functional interface for reviewing shots and navigating settings.
  • Connectivity: Wi-Fi, Bluetooth, and NFC are integrated into both cameras, enabling seamless wireless transfer of photos and videos to devices, as well as remote control via apps.
  • Lens Compatibility: Both support Sony’s E-mount lens system, providing access to a wide range of lenses for diverse photography styles and needs.
  • Weather Sealing: Both cameras feature weather sealing, ensuring durability and resistance to dust and moisture in challenging outdoor conditions.
  • Build Material: Both use magnesium alloy for their bodies, offering a lightweight yet durable construction for long-term use.
  • Continuous Shooting: Both cameras support high-speed burst modes, making them ideal for action photography, sports, and wildlife.
  • External Flash Compatibility: Both models allow the use of external flashes, expanding creative possibilities for lighting in photography.

Common Features

FeatureSony A7IIISony A6400
Megapixels24.2 MP24.2 MP
Image ProcessorBIONZ XBIONZ X
ISO SensitivityWide rangeWide range
Video Resolution4K UHD at up to 30p4K UHD at up to 30p
Autofocus TechnologyReal-Time Eye AF and TrackingReal-Time Eye AF and Tracking
Electronic Viewfinder2.36M-dot OLED EVF2.36M-dot OLED EVF
LCD Screen Size3 inches3 inches
ConnectivityWi-Fi, Bluetooth, and NFCWi-Fi, Bluetooth, and NFC
Lens CompatibilityE-mount lenses supportedE-mount lenses supported
Weather SealingYesYes
Build MaterialMagnesium alloyMagnesium alloy
Continuous ShootingHigh-speed burst modes availableHigh-speed burst modes available
FlashExternal flash compatibilityExternal flash compatibility
Price Check A7III Price Check A6400 Price

FAQ

Q1: Are the Sony A7 III and A6400 suitable for professional use?
A1: Both cameras can be used for professional purposes, but the Sony A7 III is better suited for professionals due to its full-frame sensor, in-body image stabilization, dual card slots, and superior build quality. The A6400 is more targeted toward advanced enthusiasts and vloggers with its compact size and flip-up screen.

Q2: Do both cameras support 4K video recording?
A2: Yes, both the Sony A7 III and A6400 support 4K video recording at up to 30p. However, the A7 III records 4K with full-pixel readout and no crop, whereas the A6400 has a 1.5x crop in 4K mode.

Q3: Is there a significant difference in autofocus performance between the two cameras?
A3: Both cameras feature Real-Time Eye AF and Real-Time Tracking. The A7 III offers a larger 693 phase-detection point system, covering more of the frame, while the A6400 uses 425 phase-detection points, which are still highly capable but not as extensive.

Q4: Which camera is more portable and travel-friendly?
A4: The Sony A6400 is more portable and travel-friendly due to its lighter weight (403 g compared to 650 g for the A7 III) and compact APS-C design. It is ideal for those prioritizing portability without sacrificing quality.

Q5: Do both cameras offer in-body stabilization?
A5: No, only the Sony A7 III includes 5-axis in-body image stabilization, which provides smoother handheld shooting. The A6400 lacks this feature and relies on lens-based stabilization.

Q6: Can I use the same lenses on both cameras?
A6: Yes, both cameras support Sony’s E-mount lenses. However, because the A6400 has an APS-C sensor, it applies a 1.5x crop factor to full-frame lenses, effectively increasing their focal length.

Q7: Which camera has better battery life?
A7: The Sony A7 III has superior battery life, capable of 710 shots (LCD) or 610 shots (viewfinder). The A6400 offers 410 shots (LCD) or 360 shots (viewfinder), which is adequate but less impressive.

Q8: Are both cameras weather-sealed?
A8: Yes, both the A7 III and A6400 feature weather sealing. However, the A7 III has more comprehensive sealing, making it more reliable in harsh outdoor conditions.

Q09: Do both cameras offer customizable buttons?
A09: Both cameras have customizable buttons, but the A7 III provides more options, including 4 dedicated custom buttons, catering to advanced users who require more flexible control setups.

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