It's February. The weather is miserable, the evenings are dark, and the mornings are grotty. Sounds like an ideal opportunity to escape somewhere else, and so we are. A 4 night city break in Prague awaits. But now I have a quandary. Last time we went I only had 1 lens on my old Fuji S1. The kit Nikon 28-105mm f/3.5-5.6. Not the fastest, widest or longest lens in history but a good enough all-rounder. I got some nice shots with it, even though I was primarily shooting in P mode and storing the images as JPEG. Its tendency to choose f/9 at ISO 320 on the 3 megapixel crop sensor means that the depth of field is very deep indeed. This time my kit bag and general technique has changed somewhat. I have a Canon EOS500D in it along with 3 lenses and a speedlight. I have taken to shooting RAW and processing in Aperture. I try to shoot in Av or M most of the time as I find that, for most things I shoot, depth of field is more important than precisely controlled shutter speed. And of cou...