So I am going to Israel next month and right now only have the 50mm 1.4 for my Canon Rebel XT. I figure a trip like this is as good as reason as any to buy a new lens and was wondering what everyone here recommended for a trip like this? The three lenses I have been looking at primarily were the EF 20-35mm f/3.5-4.5 EF 24-85mm f/3.5-4.5 EF 28-105mm f/3.5-4.5 II EF 17-40mm f/4L EF-S 10-22mm f/3.5-4.5 Sigma 17-35mm f/2.8-4 Sigma 24-70mm f/2.8 The 17-40 and the 10-22 would be difficult for me to buy from a financial standpoint, but I might be able to stretch it. Does anyone have an experience with these lenses and any particular strong feelings on them? Thanks for your help.