Which apertures guarantee the background remains an out-of-focus tone.Which aperture gives you the greatest contrast and sharpness, and when to use it.In his trademark easy-to-understand style, author Bryan Peterson explains the relationship between aperture and shutter speed, including how to achieve successful exposures in seemingly difficult situations. Now updated with current technologies, more than one hundred new images, and an all-new chapter, this new edition will inspire you more than ever to free yourself from “auto” and create the pictures you truly want. With more than 350,000 copies sold, Understanding Exposure has demystified the complex concepts of exposure for countless photographers.