I decided to build a functional camera. No, you cannot take pictures with it, that would be impossible in blockland, but the flash, and preview screen actually work.
Anything in front of the lens will be on the preview screen, at the same exact time it happens. This is all default and uses no complex events. It also comes with a working on/off button, and a flash button.
DownloadIf you know how it works, please do not post it. I want new users to enjoy this and see if they can figure out how it works. ;D