The GoPro Hero 4 Black is a small camera with a big potential and Johnathan Paul of Premiumbeat posted his review of it. What's interesting is that Johnathan looks at this camera from the perspective of documentary filmmaking. First of all he wanted to push the limits of the camera and he was happy to find out that the controls of the camera are very intuitive and that you can also rely on the GoPro App that makes it easy to control your camera remotely (on iOS, Android and Windows Phone devices). The app gives you access to all settings and options and you can even watch the recorded footage. As for the Hero 4 Black he got extremely impressed by the camera - and he thinks it can be a good addition to his RED Scarlet and run next to it. He also sees a lot of potential for filmmakers when using cranes or with high moving shots with the DJI Phantom. Additionally he embedded a video review of the GoPro Hero 4 by MW Technology:
And here's some more from Johnathan:
"Now the image quality for 1080 and 1440 looked great for such a small form factor, but it was identical to what I had seen GoPro’s produce before, particularly in the 2012 documentary film Leviathan. So, I jumped into 2.7K and began filming in wide and medium mode. Medium mode got rid of the wide angle lens look and made the image look a bit more in conjunction with DSLRs we were using for the shoot. The only HFR I used on the shoot was 50fps in 2.7K, which impressed me quite a bit especially after just filming some 48fps 3k footage back in October for another film.
While I ended up using 2.7K for the most part I did use 4K for some travel sequences. I was warned ahead of time by another filmmaker to not run 4K for a long period of time. I started by filming at 4K for just over 7 minutes but quickly found out what he was talking about – the camera was incredibly hot to the touch (which could likely damage it). From then on I would film between 2 to 3 minute bursts, which is not ideal for documentaries, but worked to keep the camera temp from becoming an issue."