Re: Canon 40D or XSi (450D)
I agree with Man that one lens kit does not fit all photographers. It depends on what you like to shoot, as well as your particular style. Some people like to shoot landscapes with a wide angle lens, while others use a telephoto, for example.Zooms will give you more flexibility, and the newer high quality zooms are very close in quality to a good prime lens.
Right now my kit is comprised mostly of quality zoom lenses -- Canon EF-S 17-55mm f/2.8 IS, EF-S 10-22mm, EF 70-200L f/4 IS -- and one prime (the el cheapo EF 50mm f/1.8, which I never use since getting the 17-55mm). This covers me for just about all my general purpose shooting needs, and the three zoom lenses make for a very good, flexible travel kit.
The next step is covering my less frequent special needs. The 85mm f/1.8 would be used for indoor low light and some messing around at junior hockey games we attend. Then, before our next Yellowstone trip, I need something longer than the 280mm I get with the 70-200mm + 1.4x teleconverter. Since it will be at least another year before I need anything longer, I'm waiting on that lens, but the choices are the Canon 100-400mmL, Canon 400mmL f/5.6, Sigma 150-500mm HSM OS, or Sigma 120-400mm HSM OS. Luckily I do not need to make a decision for quite awhile.
Jim, if you go with primes, I would suggest starting with just the kit lens (it's cheap but decent), and then get an idea of the focal lengths you need most. Personally, 50mm as my widest lens would not be nearly wide enough for me, especially on a crop sensor. However, if you are shooting mostly people, it may be wide enough for you.







