I currently have EF24-105 f4 but are dreaming for 17-40 (i can't afford 16-35). I like the 24-105, but i drool at the pictures taken with 17-40. Btw, i am using 5Dmk2.
Anyone has both of these lenses? Is the extra expense justify for the extra coverage at the wide end from 17 - 24? Is the 7cm at the wide end really make significant difference?
Appreciate any advise either way. Thanks.

, now have 400do;500f4is,600f4 


