Sony Alpha 7 IV
Digital Camera World|December 2021
Not just another affordable all-rounder, but a powerhouse
Rod Lawton

1 With this front dial, the two on the top and a rear dial too, there’s no shortage of dials!

2 The viewfinder offers 100% coverage and 3.69m dots, slightly up on the A7 III.

3 The new 33MP Exmor R sensor is responsible for much of the A7 IV’s speed and power.

Specifications

Sensor: 33MP full-frame Exmor R CMOS

Image processor: Bionz XR

AF points: 759-point hybrid phase/contrast-detect

ISO range: 100 to 51,200 (exp 204,80

£2,399/$2,499

0 stills, 102,400 video)

Max image size: 7,008 x 4,672

Metering modes: Multi-segment, Centre-Weighted, Spot (Standard/Large), Avg, Highlight

Video: 4K 30p full width, 4K 60p Super 35 crop

Viewfinder: 0.5 type Quad VGA OLED, 3.69m dots, 100% coverage

Memory cards: One CFexpress Type A/SD UHS-II, one SD UHS-II

LCD: 3-inch fully articulating touchscreen, 1.04m dots

Max burst: 10fps, up to 828 RAW+JPEG (with CFexpress Type A card)

Connectivity: Wi-Fi, Bluetooth

Size: 131 x 96 x 80mm

Weight: 658g (with card and battery)

Traditionally, the Alpha 7 has been the range’s ‘vanilla’ camera, with the ‘R’ models adding resolution and the ’S’ models adding sensitivity. But there’s nothing vanilla about the A7 IV. While it technically supersedes the A7 III, it’s an altogether more advanced camera that, we think, targets a higher-level audience.

The A7 III will continue for now; that model and the A7C will offer a ‘beginner’ option for the full-frame Sony camera system going forward. We have only spent a few hours with the A7 IV so far, but it is some way from an entry-level camera in its capabilities – and in its complexities.

Key features

Where do we start? How about the sensor? The A7 IV’s new 33MP sensor is hardly headline news by today’s mirrorless camera standards, but it’s a big step up from the 24.2MP of the A7 III and the A7C, and it puts a bit of distance between the A7 IV and powerhouse APS-C cameras like the Fujifilm X-T4.

Then there are the enhanced video features. Again, the A7 IV does not challenge the big hitters in the mirrorless video camera market, but it’s a big step forward from the A7 III. Its 10-bit 4:2:2 capture makes the Sony S-Log3 mode much more useful for colour grading later; and while capturing 4K 60p video does mean switching to Super35 crop mode, the A7 III couldn’t do 4K 60p at all. (Come to that, 4K 30p comes with a 1.2x crop factor on that the A7 III, and only 25/24p 4K is full-width).

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