I'm just in the process of getting a second meteor camera (Watec 902A) to use with an f1.4 4mm lens I have. During the research into the best value for money set up to go for, I've been baffled by the vast array of '902' models that Watec have produced. I understand the differences between the modern Supreme and Ultimate models and the H2 and H3 variants. However the huge number of previous '902' models has left me rather in the dark (pun intended). I've found a bit information on the Watec website, but even this isn't very clear. Has anyone put together a comparison of the attributes of the different 902 models (chip size, chip set, sensitivity, gain, S/N ratio, controls, auto iris control etc.)?