The Sony a7R IV ($3,499.99, body only) is the follow-up to the popular a7R III. It takes the same concept—a full-frame mirrorless camera built for high-resolution capture—to the next level. Where the previous two entries in the series shared the same 42.4MP sensor, the a7R IV shoots at 60.2MP, a significant increase in resolution. It maintains its predecessors' 10fps burst rate, improves autofocus capabilities, and offers sundry updates all around, especially in ergonomics. After some time using it, we can confidently say it's the best high-resolution, full-frame camera on the market, and our Editors' Choice. A Tried-and-True Design The a7R IV doesn't stray too far from the template Sony has set for other recent models in the series, including the a7R III that came before it. It is sized in line with others in its class, measuring 3.8 by 5.1 by 3.1 inches (HWD) and 1.5 pounds. There is a $400 add-on vertical battery grip available if you prefer a bigger camera. The handgrip ha...

The full-frame mirrorless Sony a7R IV outshines its high-resolution competition with an outstanding autofocus system and a superlative image sensor, delivering class-leading performance.

60.2MP full-frame imaging; 10fps Raw capture; Real-Time Tracking autofocus; 5-axis image stabilization; Big, crisp EVF; Tilting touch LCD; Dual UHS-II slots

Lower-pixel cameras are better for video; Phase detection doesn't extend to edge of frame; Big file sizes

The A7R IV proves that Sony is still very much on a roll with its Alpha line. While a handful of niggles from previous models remain, the class-leading pixel count, revamped Pixel Shift Multi Shooting mode and autofocusing improvements in particular show the company continuing to innovate, and push...

Great handling with improved ergonomics; Very fast and intelligent AF system; Bright; sharp and high-contrast viewfinder; Excellent 4K video quality; Pixel Shift Multi Shot capable of superb detail; Well-behaved metering system

Some AWB and focus issues; Rolling shutter noticeable in videos; Mode dial more awkward to access than before; Touchscreen could be better; No in-camera raw processing; No motion correction in Pixel Shift mode

Resolution-wise, the α7R IV sits at the top of Sony’s ‘full frame’ camera range, replacing the 42.2-megapixel α7R III , which continues to be available. Stills photographers looking for the extra resolution will doubtless welcome the upgrade.

Paired with a G Master lens you are assured of great results. Low light performance is excellent. The colours when using 24-70 GM are wonderful . The crop sensor 26mp works particularly well and comes in very useful.Most shots taken are perfect first time, a result that not many other cameras can...

Durable; Great Features; Great Picture Quality; The autofocus is first class; most shots perfect

In all, the video looks great, and with the addition of no record limit time with dual card slots, its ready for just about anything. Our favorite feature is Pixel-Shift Multi Shooting; having the detail that a 240MP image offers is just fantastic.

When Sony officially unveiled the 61MP A7R IV full frame mirrorless camera in New York City last month, I made a joke on Twitter that didn't go over very well. I tweeted, facetiously, that the A7R IV was the best DSLR that Sony had ever produced.

Scorecard

- Some image noise issues when shooting at higher ISOs; - Antiquated and confusing menu system; - Rear LCD doesn't side-swivel; just tilts

Not everyone needs 61MP, but you'll still want the A7R IV for its speed, autofocus, and durability.

61MP full-frame sensor; 240MP pixel-shift mode; 10 fps continuous shooting; 4K video in full-width and crop modes; Real-Time autofocus

Benefits of 61MP may be limited; Sony menus remain problematic

In the past, combining billboard-friendly resolution with large sensors has produced still life cameras that were about as portable (and versatile) as a bowling ball. But a new breed of mirrorless mavericks are now crossing studio performance with all-rounder skills – and they're being led by the...

The Sony A7r Mark IV is a full-frame mirrorless camera with 61 Megapixels, 10fps shooting, 4k video up to 30p, built-in stabilisation and a Pixel Shift Composite mode that generates images with up to 240 Megapixels.

Sony's 61MP bombshell should really shake things up...

World record resolution; Better handling than the Mark III; Eye-tracking AF; 10fps shooting

No 60/50p video