I own a Canon Powershot S2 camera. On the cameras lens, it specifies a zoom of 6.0-72.0mm. According to web sites this is a "36-432mm equivalent". I have been looking at the Nikkor 18-135mm lens and according to web sites, this is "equivalent to 27-202.5mm lens in the 35mm format". Comparing the two cameras, the Canon in fact had more zoom than the Nikkor lens. I guess I am really confused as to what these equivalents mean and why would the Canon have more zoom? Hopefully you guys and girls can explain all this to me.