----- Original Message ----- From: "CRB" Subject: Quiz #1
> > It's always good to have a handle on the basics. > In that light I present to you the following quiz. > Give a one-sentence definition of each term: > > 1. Diaphragm The mechanism that controls how much light the lens passes > 2. Aperture The opening in the diaphragm that the light passes through > 3. F-stop The size of the aperture, measured by focal length/ diameter of the opening. How'd I do? William Robb
