Haydon wrote:
Canon notoriously was weak in ultra-wide lenses up until the last couple of years but they have done well (for the most part) in producing better lenses. That statement applies more towards full frame lenses but on a budget, I understand the 10-18 is a great value if you own a CROP camera. My only complaint of the 10-18 would be the plastic bayonet mounting instead of metal.
If you think about it, when was the last time you wore out a plastic bayonet mount? IMO, we worry about this far too much.