Mode dial

On dSLR and mirrorless cameras, mode dials usually offer access to manual settings.

Some interchangeable lenses themselves offer control over things such as aperture, reducing the need for mode support in the camera body.

The simpler dial in the top illustration has: Most dSLRs and mirrorless cameras have a few manual settings and a small sample of automatic modes.

In the same light conditions a smaller aperture would be used for a landscape, and recognition of faces would not be enabled for focussing.

On cameras not aimed at amateur photographers, automatic scene modes may however be absent entirely.