I have noticed a new category of compact "sport camera" similar to the GoPro, with high resolution, such as 12 Mpixel. Some of these are sold under $50. One example:
http://www.ebay.com/itm/WiFi-4K-ULTRA-H ... 1878303985
This type of camera generally records video and stills to SD card, but many offer wifi streaming of some kind. Has anyone had any experience trying to record a wifi stream from this type of camera with a RPi (or any other computer)? The price seems much lower than I would expect for a real 12 Mpixel camera so I assume the performance must not match the specs, and no doubt any wifi stream would be at a lower resolution, but I'm curious.