Shutter Speed
A camera takes a photograph by exposing a digital sensor (or a piece of film) to light. The shutter is simply a barrier that keeps light out when you’re not taking a photo. Pressing the button at the top of the camera (it’s actually called the shutter release) opens the shutter, and when the shutter is open, an image is recorded. When the shutter closes, the camera stops recording.
The shutter speed, then, is just how long that barrier stays open to let light into the image. Shutter speed is how long an image is exposed to light — it can be milliseconds, or even minutes.
The shutter speed, then, is just how long that barrier stays open to let light into the image. Shutter speed is how long an image is exposed to light — it can be milliseconds, or even minutes.