Become a Member

Get access to more than 30 brands, premium video, exclusive content, events, mapping, and more.

Already have an account? Sign In

Become a Member

Get access to more than 30 brands, premium video, exclusive content, events, mapping, and more.

Already have an account? Sign In

Brands

Cameras

Shoot Photos Like a Pro: Exposure

Learn the basics of shutter speed, aperture, and ISO.

Shoot Like a Pro: Cameras | Photo Editing Software | Exposure | Wildlife | Night | Action | Summits | Portraits | When to Shoot What | Landscapes – Water & Snow | Landscapes – Wide Angle, Zoom, & Macro | Composition | Photo Survival Guide | Shoot Like a Pro: Editing Digital Photos

Aperture, shutter speed, and ISO work together to determine the amount of light that reaches your camera’s sensor; you must adjust one when you change another. Shutter speed controls the length of time the shutter is open; f/stop controls how wide the aperture opens; ISO is a measure of the camera’s sensitivity to light.

None

When you buy something using the retail links in our stories, we may earn a small commission. We do not accept money for editorial gear reviews. Read more about our policy.