Canon 18-200 is fast in AF compared to tamron. IS is pretty good but tammy's aspherical handling is very good as well. Price wise, tammy is definately more affordable.
I'll be sticking with my 18-200 as my travel lens though it is not as sharp as primes but a good enough lens to fulfill my travel needs. Probably the other lens I'll get for travel will be an UWA bah.
wat the price now for 18-200 ah? :think:
perhaps shld sell off my 18-250 and get it..:sweat: