According to the latest report from Sony Alpha Rumors who told a reliable source, that Sony is planning to release an A7S II successor with a built-in fan. The anticipated shooter will be capable of shooting 4K video at up to 120fps. As a comparability, the A7S II can file UHD 4K video at 30p, whereas the Panasonic Lumix S1H can capture 6K/24p and 4K/60p video in 10-bit 4:2:0. Earlier, there were rumors that Sony was working on an 8K video codec for the A7S III but a source confirms that the camera will not record 8K video.
Sony Alpha Rumors also told that the A7S III “has a cooling vent on the back”. However, the A7S III will not be the primary video-focused camera to feature a cooling vent as Panasonic has pressed Sony to the punch by adding a fan near the sensor to maintain working temperatures down. On the other hand, Lumix S1H has vents on both sides of the camera body that allows cool air to enter at one side and hot air to exit the other side.
Moreover, there is no official confirmation about the launch of A7S III from the electronics giant. Earlier, Sony announced the A7S cameras during the annual International Broadcasting Convention Show held in Amsterdam but yet there is no information on when we can expect a refresh to the aging A7S III.