I agree with David,, If I took a basic class, I had better learn some of the basics, To me, Apeture and Shutter speeds are about as basic as it gets. If they didn't teach what the numbers meant,, ASK!, I teach a Basic Digital Camera class for a local community college and that is one of the things that I cover. There are also a lot of online tutorials that will give you the information you want to know. Google is great. DAve