[ferg822]

Ok I am really new to SLR's, in fact I don't even have a camera yet, but I am looking into purchasing one in late spring/early summer. I was looking at the Olympus EVOLT E-510 and was wondering on some things. What do the abbreviations on lenses mean. For example it said "Lens Features: 14-42mm f/3.5 - f/5.6 ED zoom lens; 40-150mm f/4 - f/5.6 ED zoom lens; compatible with 4/3 mount lenses. This is pretty bread but what does all of this mean? Next what does this mean? "Aperture Range: f/22 to f/3.5 - f/5.6 (with included 14-42mm lens); f/22 to f/4 - f/5.6 (with included 40-150mm lens" What is aperture and what is the f/22 ect? Thanks You!!!