[Brightcolours]

The review say the 10-18 is not great past f10 though and there are some situations when you just need to be stopping down more. I guess I need to review my FL and see how often I am using 17mm and wished I had wider. I think I need to go and use both lenses.

Vickylou, at smaller apertures it is difraction of light that limits the resolution. It is not the lens, just physics. All lenses will perform more or less the same there, at f10.