The Panasonic EVA1 camera has started to ship to pre-order owners and some footage has started to show on the web. The camera seems to be very good at low ISOs and up to ISO 5000 it defends itself well. After that banding and heavy noise starts to become a problem. One thing to keep in mind is that the 5.7k sensor is intended to supersample for 4k to deliver unbelievable detail levels while having a detrimental effect on super high ISO. The dual native ISO settings of 800 on the low end and 2500 ISO on the high end help the camera achieve dependable noise free and extremely clean footage in those modes.
The camera can also shoot up to 240fps full HD and or 2k super slow motion video and use it’s improved sensor specs to reduce rolling shutter. The camera should be able to deliver excellent high frame rates in good light but it seems the slow-motion option offers lower quality in codec and also in noise control. We have no clue what is causing this but it is apparent from the samples that detail and quality take a hard hit in these modes.