Panasonic GH5 Mark II Sensor is tested by DxOmark
Panasonic GH5 Mark II Sensor is tested by DxOmark and when compared to GH5 Mark I sensor, there is a slight inprovement in Dynamic Range and more significant improvement in Low-light ISO score, see the comparison table below.
Model
Overall
Color Depth
Dynamic Range
Low-light ISO
Panasonic GH5 II
79
23.7 bits
13.1 Evs
1136 ISO
Panasonic GH5
77
23.9 bits
13.0 Evs
807 ISO
Panasonic GH5 II Key Specs Announcement Date: 2021-07-30 20MP - Four Thirds CMOS Sensor No Anti-aliasing (AA) filter ISO 200 - 25600 ( expands to 100) Micro Four Thirds Mount Sensor-shift Image Stabilization( Up to 6.5-stops) 3.00" Fully Articulated Screen 3680k dot Electronic viewfinder 12.0fps continuous shooting 6K - 4992 x 3744 video resolution 240fps High-Speed Video Built-in Wireless 727g. 139 x 98 x 87 mm Weather-sealed Body Also known as Lumix DC-GH5M2 Replaced Panasonic Lumix DMC-GH5 Compare Read the Review Check Price at: Amazon , B&H Photo
Find the comparison of these two cameras here .