DPReview Intro to photography: What is shutter speed?

This video is part of our Intro to Photography series, where we break down some of the fundamental concepts of the image-making process. You can find a written version below. What is shutter speed? Shutter speed, along with aperture value, is one of the fundamental properties of exposure: ie, how much light your camera gets exposed to. A faster shutter speed helps freeze action, whereas a slower one lets in more light but can result in blurred movement. How do I choose my shutter speed? There ar...