Here's a perfect example of "Why Didn't I Think of That???!". I talked about the Yongnuo remote LCD viewfinder a few times and ordered one myself. Article found here: http://cheesycam.com/remote-lcd-live-view-for-dslr-video-exciting/. I've used it for the Palo Alto adapter to do some Painters Pole Photography so that I can frame a shot and fire the camera's shutter. I've also tried to use it as an EVF - Electronic View Finder, but the pixel resolution wasn't suffice for focusing when magnified by a Loupe. So other than PPP photography, it's been on the shelf.
Recently GoPro released firmware to allow Live View video from the GoPro HD to an external monitoring. Since the GoPro doesn't have an LCD (yet), framing a shot is always hit and miss. I've had the Yongnuo + GoPro items on my shelf for months now and didn't think to use them together. Well Cheesycam reader Renato Longona writes in today with a video showing the two being used together. This Yongnuo is a lightweight, inexpensive, portable battery powered LCD monitor perfect for something like the GoPro which has no LCD. I really enjoyed using the built in Timelapse feature on the GoPro, and now i'll be able to accurately view what's going to be captured. Pure genius! [Thanks Renato]
The Yongnuo Live View Remote Portable Battery Powered LCD can be found here: Yongnuo Battery Powered Remote LCD Viewer