I have just purchase a 500D and exploring around. Previously was using a couple of PnS and a Lumix Prosumer.
I have some questions out here relating to lens. The kit lens is 18-200mm F3.5-5.6. I was wondering what kinda difference does it have from 24-70mm F2? WHen the spec is F2 does it means that the aperture is fixed at f2?