Sony Alpha a7s Mark III announced

Tuesday 28 July 2020, 16:32 by Elja Trum | 3,208 views | 1 comment

This article was translated from Dutch with the help of AI. Read the original.

Sony has just announced the Sony Alpha a7s Mark III during a live event. This full-frame mirrorless camera is aimed entirely at videographers. You can record 4K video at 120 frames per second with the camera.

Watch the announcement below:

The necessary details had already been leaked, of course, and Sony fans have had to wait a long time for this camera. For years, people expected this camera to be announced.

Sony Alpha a7s Mark III specifications

- Full-frame 12-megapixel BSI-CMOS sensor
- 4K video at 120 frames per second
- 16-bit RAW video (at 60p)
- ISO sensitivity: 80 - 102,400 ISO (expandable to 40 - 409,600 ISO)
- 15 stops of dynamic range
- 759 autofocus points (phase detection on the sensor)
- In-body image stabilisation
- Tilting and swivelling display
- Electronic viewfinder (9.44 million dots)
- HDMI port (full-size)
- 2x memory card slots (supports both SD(XC) and CFexpress cards)

In appearance, the camera looks very similar to the Sony a7R Mark IV. The most noticeable difference is probably the display, which can now be rotated all the way around to the side of the camera. This means you can also see what is being recorded when you are standing in front of the camera yourself. This is the first Sony with such a mechanism.



The screen now also offers more options in terms of touch sensitivity, and the menu has been improved in terms of ease of use as well (according to Sony). Something that was certainly needed.

The sensor is read out twice as fast in the new camera as in its predecessor. This should significantly reduce the 'rolling shutter' effect.

The Sony supports the new CFexpress Type A cards. This is the first consumer camera that can use these cards. This CFexpress standard is needed for continuous shooting of RAW photos and 4K 120p video recordings.

The great thing about the standard is that you can still use SD(XC) cards in the memory card slots. You will then have to record video at a slightly lower speed.


I expect that few photographers will choose this camera, but it is absolutely a great device for videographers. Personally, I find the improvements over the Mark II a little disappointing, although quite a few years have passed between the models.

Price and availability

The new Alpha 7S III full-frame camera will be available in the Benelux from September for a price of 4,200 euros.

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