My interests tend towards high-altitude balloons, but I find that there's more than enough overlap in the technology here to keep me coming back (in case you haven't noticed, there's some darn cool stuff that happens here). So far, I haven't had a reason to actually post to the blog, but this might be relevant enough to justify consuming your time: a camera that is designed to output composite video while recording 1080p high-def. Check out the video above (if you can, watch in 1080p), then read on....
A week prior to this flight, Sparkfun announced the camera that we used to capture this video, the HackHD (Manufacturer Page) (Sparkfun Product Page). You can find all kinds of information that we captured on our review of the camera, but what I thought might get the attention of this community was that it also offers a live NTSC video output during recording.
(Image from www.sparkfun.com)
Pins 5 and 6 of the module are ground and video out respectively (Pin 1 is near the uSD slot), and, sure enough, they output live video while the camera is recording (the lens flare in the video is my camera flash; note that the rest of the video is still pretty clear):
Bottom line is that this camera is smaller and lighter than a gopro, will run for a very long time on the 6000 mAh pack from Sparkfun, has awesome dynamic range, and is extremely easy to set up... it's going to be a permanent fixture on our balloon flights going forward, and it might be of interest to you as well.