Sony a7 III Brief Review



  • Other Features : Anti-flicker, dual SD slots
  • Weight : 1 lb. 7 ounces
  • Battery : Li-ion battery rated at 610-710 shots
  • Weather Sealing : Yes
  • Screen : 2.95 inch tilting touch LCD, electronic viewfinder
  • GPS : No
  • Wi-Fi : Wi-Fi, Bluetooth and NFC
  • Flash : Hot shoe slot, Flash sync 1/250
  • Video : 4K (3840x2160 at 30 fps
  • RAW : Yes, 14-bit
  • Image Stabilization : 5-axis sensor shift
  • Autofocus System : Hybrid phase-detection and contrast detection
  • Autofocus Points : 693 phase detection, 425 contrast detection
  • Burst Speed : up to 10 fps
  • Shutter Speed : 30s - 1/8000, Bulb
  • ISO : 100-51200 (50-204800 expanded)
  • Processor : Bionz X
  • Sensor : 24.2 megapixel full frame CMOS sensor
  • Release Date: 2018-04-10
  • Final Grade: 94 4.7 Star Rating: Recommended

The Sony a7 III redefines entry-level full frame
With an enhanced sensor and fast performance, Sony's most affordable full-frame mirrorless camera has a lot going for it.
By Hillary Grigonis, Last updated on: 5/2/2018

The Sony a7 III is the company's cheapest full-frame mirrorless camera -- but that doesn't mean the camera is lacking features. Packing a newly developed sensor and fast speeds, even the entry to the third generation in the A7 series is impressive.

While the 24.2-megapixel full-frame sensor has virtually the same megapixel count as the earlier a7 II, Sony has redesigned the sensor with a backlit design. Sony says this change allows the camera to capture a wider dynamic range and more accurate color than the predecessor, along with allowing for a wider ISO range.

Upgrading to the BIONZ X processor allows the camera to process data nearly twice as fast, doubling the older sibling's burst speed to 10 fps (8 fps if you want live view). That fast performance is paired with a hybrid autofocus system that's the same as in the super-speedy Sony a9, with 693 phase detection points and 425 contrast detection. Eye detection autofocus also improved on this model. Sony also built-in a five-axis stabilization system and 4K video at 30 fps.

All those features are wrapped up in a sealed magnesium alloy. Dual SD card slots are included. Both an electronic viewfinder and a tilting touchscreen can help compose the shots. Sony also managed to build in a much longer battery life, negating some of the negatives from the earliest models in the series.

Body-only, the Sony a7 III retails for $2,000, a $1,200 price drop from the higher-resolution a7R III, making the camera a good entry point into the Sony series. If you don't need the 40+ megapixel resolution of the a7R III or the 20 fps speed of the a9, the Sony a7 III looks like a good buy.

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Sony Reviews

Sony has been at the forefront of the market for consumer electronics for the past 30 years by offering innovative imaging products in response to changes in the market. Sony has made cameras that are ideal for casual users, hobbyists, and professional photographers through their dedication to implementing the most current technology with a sleek and minimal style, resulting in an end result of the highest quality.

Sony was the first to put a full-frame sensor inside of a mirrorless camera, the A7 and A7R, and a little later, the A7S. While the first-of-its-kind cameras aren't without flaws, Sony executed their ideas fairly well and made some pretty solid cameras to start the new line.

Speaking of first-of-its kind, Sony also designed a “camera-without-a-camera,” the QX10 and QX100. These cameras have a sensor and lens, but no operating system—instead, consumers use their smartphone via wi-fi or NFC to operate the camera. While the cameras certainly have flaws (mainly in the slow response due to operating through wi-fi), we still have to applaud Sony for the way they've responded to the rise in smartphone photography (plus the cameras have actually sold remarkably well).

Sony has also been highly successful with the RX compact camera line that began with the RX100, a compact camera with a 1” sensor, excellent image quality and full manual modes. The camera has since seen some solid updates, and remains a good option. Sony also added the RX10, a camera with a 1” sensor but instead of focusing on compact size, adds a much bigger zoom.

While their focus is on more advanced models, it’s usually a pretty safe bet to pick up a Sony compact, even a budget priced one, and still get a lot of bang for your buck. We're also big fans of Sony's designs, making their cameras easy to use and adjust, like the HX400 that has an automatic sensor on the electronic viewfinder as well as a control ring around the lens.

We here at Digital Camera HQ offer unbiased, informative reviews and recommendations to guide you to the right camera. We're not an actual store; we're just here to help you find the perfect camera at the best price possible by using our camera grades. Let us know if you have any problems or questions, we're happy to help.