I have an older 18-55mm IS lens from my Rebel XSi that I am repurposing to be used on my 60D. I don't think I am getting the best results from this older lens from both older IS technology and optics.
I was thinking of purchasing a Canon EF-S 15-85mm f/3.5-5.6 USM IS or Canon EF-S 17-85mm F/4-5.6 USM IS. Will I be happy with the results, or until I get into the L lenses is there much difference?
Additionally, I was thinking of getting a 35mm or 50mm prime lens. The 50mm is priced low and I am very nervous of the plastic base. I read failures where the mount broke and removal caused damage to the body.