Lens Canon EF 17-40mm f/4L USM
Exposure 1/4 sec, f/16, ISO100
ress the shutter release button and your camera’s shutter opens and closes. How long that takes depends on what shutter speed you have set on your camera. The longer the shutter is open, the more light will enterelements in your images. A fast shutter speed (such as 1/1000 sec) can be used to freeze action such as quick wildlife, while a slower shutter speed (such as 1/4 sec) can be used to create motion blur like moving water in seascapes.
