Tried a google search and kept coming up with a 12 minute video by Griffin... just curious if there is a chart that compares... I don't need the 4k (well I'd love it but I can live without it). If 4k is the major difference then I can save money and go with the GH3 but I just want to make sure there is not something else that I would be missing on the GH3 vs the GH4.