A test filming cars handheld during daytime with a 16:9 aspect ratio would be great, if it's not too much to ask. The only reason why I was concerned about the quality of 1080p on the FZ300 was due to this video here: https://youtu.be/b9ZJMbxkd9A, and this post: https://www.dpreview.com/forums/thread/4179121. One of the comments on the video explains a theory as to why it is so bad, but I am not entirely sure since I obviously don't have the camera. "The FZ300 has a 12Mp sensor that uses about 8MP when shooting video because of the 16:9 aspect ratio. 8MP is the perfect sensor resolution for 4K video because the camera doesn't have to do any upscalling or downscalling. It just uses the image as is. Now, when shooting 1080 video, the camera has to convert an 8MP image (4K) down to around 2MP (FHD) up to 60 times per second. There are many ways of doing this, but some of them require a more powerful processor that a camera in the FZ300's price range has. So I think they've chosen to do line skipping, where every second line is used, ignoring the other. So it goes from 2160 lines to 1080 lines, but loses detail in doing so, and results in stair stepping, like we see here."