What is "focus", and how does it work on my digital camera?

What is "focus", and how does it work on my digital camera?

Mark Comon (Vice President, Paul's Photo, Torrance, CA) gives expert video advice on: Why would I use the "image stabilizer" feature?; How do various image stabilizers differ?; What shutter speed range do I need for my digital camera? and more...

On your digital camera the focus is the distance, or how far the subject is from the camera. The camera focuses by looking through a window in the camera, and it sees an out-of-focus image and an in-focus image, and electronically lines those up by twisting the lens to find the right distance. The focus works so that we get clear pictures at any distance. Whether it's near or far, the camera will adjust for that for you.