Camera Technology Sony A7 III Features

Camera Technology Sony A7 III Features

Welcome to The Beta Tech. Today I will tell you and discuss the basic features and design of the Camera Technology Sony A7 III Features in detail.

Overview To Camera Technology Sony A7 III Features

The Alpha A7 III sits on the bottom rung of Sony’s full-frame mirrorless camera range and is designed to appeal to both keen enthusiast photographers and professionals. 

Overview To Camera Technology Sony A7 III Features

In the past, the A7 series of cameras have always felt like poor relations to the A7R and A7S series. While the latter two ranges have tended to capture the limelight with their high pixel counts and advanced video capabilities, the A7 cameras have always been regarded as the basic models, sporting a solid but unremarkable set of features.

That looks like it could all change with this third-generation A7 camera. Borrowing many features from the top-of-the-range Alpha A9, as well as the Alpha A7R III, the Alpha A7 III looks anything but basic.

Features Of Camera Technology Sony A7 III Features

  • All-new 24.2MP back-illuminated sensor
  • 5-axis image stabilization offers 5-stop compensation
  • 4K video capture using the full width of the sensor


  • Sensor: 24.2MP full-frame back-illuminated CMOS
  • Lens mount: Sony FE
  • Screen: 3.0-inch tilt-angle touchscreen, 921,000 dots
  • Burst shooting: 10fps
  • Autofocus: 693-point AF
  • Video: 4K
  • Connectivity: Wi-Fi, NFC, and Bluetooth
  • Battery life: 710 shots
  • Weight: 650g

Sony hasn’t been tempted to increase the resolution of the Alpha A7 III, so it stays at 24.2MP, like the Alpha A7 II. However, the sensor is completely new and features a back-illuminated design which, combined with the latest BIONZ X image processor, sees the sensitivity range greatly improved over the older model – with an extended ISO ceiling of 204,800 (the same as the Alpha A9), it’s three stops better than the A7 II’s 25,600 limit. Sony also reckons it’s managed to achieve a dynamic range of 15 stops with 14-bit raw files. RECOMMENDED VIDEOS FOR YOU…

While the electronic viewfinder (EVF) doesn’t get a bump in resolution to match the A7R III’s 3.8 million dots, the 2.3 million-dot EVF on the Alpha A7 III gets a slightly higher magnification factor than the older model, up from 0.71x to 0.78x. 



As we’ve seen with other recently announced Sony cameras, the rear 3.0-inch tilt-angle display is now touch-sensitive, enabling you to set the focus point and browse through images quickly, although it doesn’t allow for quick navigation of the camera’s menu.  The 5-axis in-body image stabilization system in the Alpha A7 III has also been tweaked, and now provides five stops of stabilization, improving slightly on its predecessor’s 4.5 stops.

It’s no surprise to see 4K video capture on the Alpha A7 III. Recording in 24p, the full width of the sensor is used, with full pixel readout and without pixel binning. This sees around 6K of data collected (2.4x the amount of data required) before the footage is then oversampled to produce what Sony says will be 4K footage with exceptional detail and depth. If you want to shoot at 30p, there’s a 1.2x crop option that uses roughly 5K of the sensor.

Camera Resolution

As we’ve seen with the Alpha A7R III, the Alpha A7 III offers a new HLG (Hybrid Log-Gamma) profile that supports an Instant HDR workflow. And allowing HDR (HLG)-compatible TVs to playback 4K HDR footage. As well as this, both S-Log2 and S-Log3 are available for increased color grading. While if you want to shoot Full HD footage you can do so at up to 120fps.

The Alpha A7 III sports two SD card slots, but, again like the Alpha A7R III, only one of these supports faster UHS-II cards. There’s also Wi-Fi and NFC connectivity to enable you to transfer images. But no Bluetooth (which can provide a low-powered. And the constant connection between the camera and smart device to make image transfer that bit more seamless).

Build And Handling Of Camera Technology Sony A7 III Features

  • Design identical to the Alpha A7R III
  • Features a multi-selector joystick and AF-On button
  • Dust- and weather-sealed

The Alpha A7 III has the same body as the Alpha A7R III, which means the new camera gains the same refinements to the control layout as its higher-resolution stablemate.

So while there’s no dedicated drive mode dial or focus mode selector. As we’ve seen on the Alpha A9, the Alpha A7 III does benefit from the addition of a multi-selector joystick.  All the Alpha A7 III’s major buttons and dials are sealed from the elements to protect against dust and moisture

The rear scroll wheel is raised away from the body a bit more than on the Alpha A7 II. And it’s less likely that you’ll inadvertently change a setting thanks to there being slightly more resistance in its movement.

Another welcome touch taken from the A7R III is that the eye sensor is now deactivated when the rear screen is pulled away from the body. This means it’s possible to shoot waist-level images without the feed cutting out and rather unhelpfully swapping to the EVF.

Build And Handling Of Camera Technology Sony A7 III Features

Autofocus Of Camera Technology Sony A7 III Features

  • Same 693-point AF system as the Alpha A9
  • 93% coverage
  • Focuses down to -3EV 

It’s not often that you see a manufacturer take the AF system from its flagship camera. And put it in a camera less than half the price. But that’s exactly what Sony has done with the Alpha A7 III. The Alpha A7 III gets the same, brilliant, 693-point phase-detect AF system as the Alpha A9. 

This is a huge step up from the rather clunky 117-point system in the Alpha A7 II, with the new system offering an impressive 93% coverage across the frame, with an additional 425 contrast-detect points to aid focus; for good measure, it can also focus in light levels as low as -3EV.

The Alpha A7 III sports a wide variety of AF modes, enabling you to make things as simple. Or as advanced as you need depending on the shooting situation.

The Alpha A7 III also gets Sony’s latest Eye AF focusing mode. This is a great feature for portrait and social photographers. As with this activated the system will continuously track and focus on your subject’s eye. Even if they look down or away from the camera momentarily.

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