hi, would like to know what is the difference buying 18-200mm lenses vs having 2 lenses at 18-55mm and 55-200mm? i'm a newbie, only downside i can think of, is having to change lenses which can sometimes be a hassle.
also, what does IS USM lens, II USM lens or L IS USM lens etc mean? found definition of USM here http://photonotes.org/cgi-bin/entry.pl?id=USM but not sure what the IS or II etc mean?
i found a online deal for EOS 400D + 18-55mm + 55-200mm kit at around $1,465 and EOS 400D + 18-55mm kit at around $1,279. have checked canon sub-forum here seems like the deal with the 18-55 and 55-200 is a fairly good deal comparing with sg prices? worthwhile to get the 2 lenses or just settle for the 18-55 first?
and is the d40 really not worth buying? was considering buying the d40 or 400d but from reading online, seems like 400d is "better".