The company also announced a new zoom lens and plans for a telephoto optic for the Alpha 9

Sony has unveiled a new flagship high-resolution camera – the Sony Alpha 7R III.

The mirrorless model is the latest update to the Alpha 7R range with a 42.4MP back-illuminated full-frame sensor.

This new camera is introduced in competition with the recent, well-received Nikon D850, which has a similar specification but slightly lower price.

The Sony Alpha 7R III, Credit: Sony

Options for videographers have improved with the new model, which offers 4K recording (3840 × 2160 pixels).

The main announcement is that when shooting in Super 35mm format, the camera uses full pixel readout without pixel binning to collect 5K of information. This oversampling means it can produce the highest possible quality 4K footage.

A new HLG (Hybrid Log-Gamma) setting also allows instant HDR playback on compatible TVs, with no post-processing required.

Sony have released some sample footage for the camera, which can be seen below.

Wi-Fi is built for connection to a smartphone or tablet. There’s also high-speed USB-C port for connection to a computer, which allows a tethered operation via Sony’s new free Imaging Edge software.

The body design takes key features from the highly-regarded Alpha 9, such as the SD twin card slots (one of which is UHS-II compatible).

The Sony Alpha 7R III is due to go on sale in November 2017, priced at approximately £3,200.

The FE 24-105mm F4G OSS, Credit: Sony

Sony have also unveiled a new lens called the FE 24-105mm F4G OSS, which is a weather-sealed standard zoom that it claims to be the lightest in its class at 663g.

Just like the Alpha 7R III, the FE 24-205mm F4G OSS is due in November 2017. It is priced at approximately £1,200.

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In their third announcement the brand revealed that it’s working on a 400mm f/2.8 telephoto prime designed to match the high-speed Alpha 9 full-frame mirrorless camera. This is due in Summer 2018.

For all of the latest reviews and major announcements, check out our sister site Amateur Photographer.