The Panasonic GH5 is a hybrid designed for both stills and video — the new Panasonic GH5s is still a sort of hybrid, but geared more towards video and low light.
The GH5s actually steps down the megapixels nearly in half over the GH5, which isn’t getting replaced by the GH5s. With 10.2 megapixels rather than 20 crammed onto the same size sensor, those pixels are much larger, which helps them gather low light. That move is designed to allow for better low light shots with less noise — and the GH5s doesn’t need extended ISO to hit 51,200.
While the still photos have a lower resolution than the GH5, the video actually has a higher resolution. While the GH5 brought 4K at 60 fps with no time limits, the GH5s brings Cinema 4K, which actually hits 4,000 pixels instead of the 3,800 required to be categorized as 4K. That maximum resolution is available at 60 fps in 8-bit, with lower frame rates available for 10-bit recording. The GH5s also has a handful of other video-focused features, including an HDMI port and anamorphic video.
The lower resolution may make the GH5s more ideal for video, but for stills, the camera is capable of 60 fps bursts at eight megapixels using the 4K photo mode or 7 fps with continuous autofocus in full resolution. Focusing is also good down to -5 EV for shooting in low light, Panasonic says. Unlike the GH5, however, in-body image stabilization is not included. A new aspect ratio feature, which doesn’t change the focal length of the lens, is also included for both photo and video.
On the outside, the GH5s doesn’t stray too much from the GH5. The camera is weather-sealed and uses dual SD card slots and both an LCD screen and electronic viewfinder.
Panasonic’s premium video features do not come cheap, however, with a $2,500 list price for the body only. The GH5s will be available beginning on Feb. 5, 2018.