Similar to another poster I have the 24-105 on a 40D. I really like it though I admit that I sometimes miss the stop of aperture but for those situations I usually pull the trusty primes.


Main reason I chose the 24-105 was the wider range of focal length for the cost of 1 stop. Compared to the 24-70 or 17-55 it reduces the number of times I would have to change for my 70-200 which on the fly is very useful. This is particularly the case if I go travelling and want to take only one lens