The latest post on the Proto Blog is about the Raspberry Pi Camera Module Hardware:
Raspberry Pi Camera Module - Part 1: Hardware
This article focuses solely on the module hardware and what kind of video or images the camera sensor can produce. We’ll look at the standard module as well as the new NoIR Module just released by the Raspberry Pi Foundation. There is a way to use external lenses with these modules, and we attempt to explain how to do this safely for those looking to push the envelope. Lastly we review some case and mounting options for the RPi and Camera Module to help you decide which case is right for your next project.