Hi there,

Am thinking of buying a general walkabout lens for my EOS 600d - Two main choices really, for me: the Canon EF-S 15-85mm or the L 24-105mm.
Optically which of these lenses is superior? Which delivers 'better images? and Which one is least likely to be replaced in the future? ( Is the 'L' lens worth the money for extra quality)? - Am not sure what the relative wide-angle difference between the two lenses would be in real terms.

Many thanks for your help!!