1. There are three main ways to show movement in photography: with a stationary subject and moving camera, moving subject with stationary camera, or both subject and camera in motion.
2. Key factors that affect the amount of light entering the camera are the aperture size and shutter speed. A smaller aperture results in more of the scene being in focus from near to far.
3. Different types of cameras include DSLRs, rangefinder cameras, compact digitals, and view cameras, each with their own advantages and disadvantages for features, size, cost, and manual control.