http://www.nikonchat.com/nikkor-18-55-lens/

Is there a big difference between canon AF-S Nikkor 55-200mm 1:4-5.6 G ED AF-S Nikkor 18-ED 135mmG?
Do they do more or less the same thing? The 55-200 lens is brand new and I'm thinking of selling the old. But I'll keep both of them only if there is a big difference. If there is no difference what you recommend also sell it, when it would be better for me to use my umbrella? Sorry, I meant Nikon lenses. No Canon ..
Ah, Nikkor lenses are not made for Nikon, Canon. No Canon AF-S If you go to update, get the 18-200 mm lens. If you sell the 18-135 and just use the 55-200 mm wide-angle will have no shooting or normal capacity. My guess if you look through both see this. It seems you spend your money before you made us question … could have saved some money