This is why I bought an iPhone. I went to Bearizona yesterday out in Williams Arizona 30 miles west of Flagstaff. Got to test out some of the 4K shooting and pictures on the iPhone 6s Plus. I later came home and spent about 2-3 hours piecing together the footage in iMovie on the phone, then saved as 4k > moved to PC and uploaded to youtube in 4k. Most of these clips were zoomed which definitely shows in digital cropping, also the moving clips where shot through a dusty car window, but overall I'm really happy with what the phone was capable of pulling off considering this was filmed and edited on a phone. As you'll be able to notice in the film, that the lighting exposure was very challenging and in fact found myself constantly adjusting to get the right details from the animals. Considering the environment with bright Arizona sun at 330pm-545pm and the contrast of the shadows from all the woodland I felt it did a decent job of being able to adjust. Anyway, just thought I'd share.