Having full control over aperture, shutter speed, and ISO allows you to create shots in-camera that would otherwise require extensive post-processing or composi

Having full control over aperture, shutter speed, and ISO allows you to create shots in-camera that would otherwise require extensive post-processing or compositing. Sometimes you want some motion blur in the scene while maintaing shallow depth of field, e.g. when shooting a stationary subject against a busy city background.