If you're considering a fast prime, I'd definitely throw the Sigma 30 1.4 into consideration. It's magnificent. The 50 feels way too tele on an APS-C but the 30 is great. It is substantially more than the 50 1.8 though, so that's a bummer. It's also substantially larger and heavier, which is about the only reason I'm very fond of my 50 1.8- it's so small I can literally put it in my pocket. It's (the 30) very sharp even wide open and autofocus is surprisingly fast and accurate given the 1.4.
I love the Sigma 10-20 as well, but have always heard great things about the Canon version.
Depending upon the sort of vacationer you are, you may consider an ultrazoom like one of the many 18-200's. I've only ever used the Nikon one, and it does have inherent flaws, but if I have no clue what I'll be shooting, it's nice to keep things light with only a body/lens setup. I have lenses that do nearly every part of that range far better than it, but I don't always want to take all that with me. |
