I read great things about this lens and bought it with a 400D body this week.
I plan on buying either the Tamron 17-50 2.8 or the Sigma 18-50 2.8...
If you own one of these and the 50mm 1.8/1.4, does the zoom perform as well @ 50mm as the prime?

i just used it shooting some basketball with my friends and i was very surprised on the focal length. i had to stand wayy back to get everything in the frame!


