One of the biggest differences between the A7 III and its predecessor is a brand new 24.2-megapixel Exmor R CMOS sensor with back-illuminated technology (BSI). A back-illuminated sensor allows the A7 III to collect more light than before and Sony claims it’s capable of 15 stops of dynamic range at low sensitivities. Sony adds that the new sensor should help improve colour reproduction of skin tones and landscape images, and it’s capable of an extremely high ISO of 204,800.
The A7 III inherits the same autofocus system that can be found on the A9, so it features 693 phase detection points that cover 93 per cent of the sensor area, along with Sony’s own 4D focus system that tracks subjects and predicts their movements.
On the back is a 2.3 million dot OLED viewfinder, a USB Type-C port and an AF joystick which is weather resistant. You also get 11 customisable buttons and a customisable “My Menu” function that lets you create a menu page with the most regularly used settings.
The new Sony A7 III will be available from March for £2,000 body only, or £2,200 with an SEL2870 kit lens.