37 slide presentation. Deals is the basics of photography: F-Stop, Shutter Speed, Film Speed and more. Shows good examples of what happens when you have different F-stops and shutter speeds. Explains how a digital camera works, Opitical/Digital Zoom. Finally it shows how to work the Canon A75 Power Shot - here you could insert any camera you would like to talk about. This presentaton is a very good start - you can always add more! Good for Middle School and HS photography class.