The a7R III doesn't offer increased resolution when compared with its predecessor, but that doesn't mean it's not a serious upgrade. It takes a sensor that's already proven to deliver excellent performance and ekes a bit more dyanmic range out of it, while other upgrades are more palpable.

Proven 42MP full-frame sensor; Improved processor and autofocus system; 10fps image capture with tracking; Silent shooting option; Tilting touch LCD; Dual card slots; Larger battery than a7R II

Only one card slot supports UHS-II speeds; No built-in flash; Can't start video until image buffer is cleared; Dense menu system

There are a variety of new things under the Sony A7R III's hood, including the ability to shoot 10 frames per second (fps) continuous bursts of images at full resolution, 4K video recording across the width of its full-frame sensor, longer battery life, and a host of other features.

Scorecard; + Impressive resolution results; + Extremely fast overall; + 10 fps burst shooting helps capture action; + Improved battery life

- Slightly less dynamic range than previous model; - Only basic weather sealing; - Limited touch capability on rear screen

The A7R III is so good, so powerful and so versatile. Its troubling body-lens size mismatch, and 530/650-shot battery life, which is good for mirrorless but poor next to a pro DSLR, means it just loses half a star from an otherwise perfect score.

Superb resolution; 10fps continuous shooting; 4K video options

Body/lens size mismatch; Pro lenses are expensive; Battery life still not at DSLR level

The Sony Alpha A7r Mark III is a highly versatile full-frame camera that can record detailed 42 Megapixel photos, film high quality 4k video, and handle itself respectably for sports with decent autofocus and 10fps bursts.

With big improvements to battery life and performance, Sony's A7R Mark III is a worthy successor.

42.4MP full-frame sensor; 10 FPS burst shooting; Vastly improved battery life; Improved image stabilization; Improved AF performance

No "anti-distortion shutter" rating; Burst mode limits compressed RAWs to 12-bit

After finishing the Sony a9 review, I stated "As I go back to my Sony a7R II to continue work on the Sony lens reviews , I'm left feeling in want." I was still happy with the s7R II's resolution and dynamic range, but I definitely wanted some of the a9's new and improved features.

When you save up for over a year for a camera, and then drop over 10k on switching systems, you'd think your camera would be packaged better than a GM 24-70, a Batis 85mm 1.8, some filters, a battery grip, and an Alpha a7rIII bouncing around in a box that is partially open from not enough packing...

I found the Sony A7Riii the best mirrorless full frame camera on the market today. I did extensive research on the Nikon and Canon offerings in this class and they both fell short of the Sony. The 42mb sensor is amazing - if you need that kind of resolution.

Compact and light body while feeling sturdy and substantial in the hands

Convoluted menu system; no intervalometer; lenses are more expenses than Sony's competitors

In terms of all-round competence, the Sony A7R III goes head-to-head with the Nikon D850 as the best full-frame camera money can buy. Indeed, the Pocket-lint team, alongside a panel of judges and the public voted it the best camera of 2018 in the Pocket-lint Gadget Awards.

Sharp images with plenty of detail and exceptional dynamic range; Much improved new battery with 650-single-shot-life; Lovely electronic viewfinder; Very respectable high-speed performance; Customisable 'My Menu' for direct access to most used controls

Still takes a while to work your way around the camera; LCD touchscreen lacks some functionality; Some buttons/dials are not the easiest to control; Still uncomfortable to hold with larger lenses

The Sony Alpha 7R III is Sony's latest high-resolution, full-frame mirrorless camera. It offers impressive all-round specifications, with a 42.4MP sensor, 10fps continuous shooting, a hybrid AF system that employs 399 phase-detection points covering approximately 68% of the frame, and 4K video...

Phenomenal image quality in almost any situation; Extremely fast and responsive; Compact; lightweight design with well-placed controls; Superb electronic viewfinder; In-body image stabilisation gives sharper images with any lens

AF area is invisible when moved using the joystick; Rear screen only tilts up or down; Handgrip too close to the lens for shooting with gloves