LX100 better low light than GH4

Well, a couple more videos just confirmed it:

I haven't seen any sharpness comparison between the LX100 vs the 12-35mm lens. Personally, when come to underwater, low light performance is more important than sharpness. This is because you always go deep and loose light, and when come to moving picture (video), no one really freeze the frame and pixel peep. What do you think?

I guess it depends on the conditions you dive in. If I compare my Sony RX100 Mark II to my Panasonic GX7 I know that at wide end there are two steps advantage for the Sony because of the faster lens at the same ISO

However the image quality is not better in the same dark conditions even if the GX7 uses higher ISO

The challenge in my opinion is more with dome ports that require you to shoot apertures of f/8 and smaller as that is really dark and you start having a base ISO of 800 even close to the surface

If you operate with a flat port or under lighting then this becomes irrelevant

What is clear is that for video the 12.7 Mp sensor cropped with multiaspect can compete with a cropped standard 16 Mp 4/3 sensor as obviously in both cases you use only part of the sensor but in the LX100 case the pixels are bigger

Also because of the less crop with the LX100 the lens resolution is more preserved than with the GH4

When you will house the LX100 behind a dome however you will have the same challenges of soft corners than on the GH4 and the better ISO performance will come up

I wouldn't worry about sharpness the gh4 does to much in camera sharpening anyway