Hm, no, not a "good" cam, but a nice cam for the low price now. Because 4k is upscaled from either 2.7k or 1080p and looks strange, and 2.7k also looks strange even though the OV4689 sensor can make 4 megapixels. Both 4k and 2.7k video has a MJPEG codec (but not h264 AVC codec). The 1080p 60fps...