I have a 350D with 18-55, 28-105 and 70-200 (as listed below) have taken some nice shots with the kit lens but want something faster for indoors with nicer colours also to use as a main / walkabout lens. [SIZE=2]It would ideally be at least 18mm short and 50mm long. Thing is I really dont want to buy a compromise now and look to upgrade in a year or two .
My short list is
1st choice - £275 Tamron 17-50 f2.8 because its fast and seems quite sharp but how noisy is the AF?
2nd choice - £225 Sigma 17-70 bcause better zoom but slower and possibly not as sharp as Tamron?
3rd choice - £399 Canon 17-85 IS because excellent zoom range and IS, but is probably too slow for indoor shots.
[SIZE=2]EF 17-55 IS @£659 is too expensive . 17-40 too short. and 24-105 and 50 f1.4 not wide enough.
[SIZE=2]Or is anything due out soon, that I could add to the shortlist?