Camera parts and functions explained

You do not need to memorise every button on your camera. Start with the controls you will use repeatedly, then learn the less common ones when a lesson gives you a reason to use them.

Shutter button

The shutter button takes the photograph. On most dedicated cameras, pressing it halfway starts focusing and metering, while pressing it fully takes the picture. Some cameras can be configured differently, so treat that as the usual behaviour rather than a universal rule.

Lens and lens mount

The lens gathers and focuses light. On interchangeable-lens cameras, the lens mount joins the lens to the body. Never force a lens into place. Match the mounting marks and follow the instructions for your camera system.

Screen and viewfinder

The rear screen can be used for menus, reviewing photographs and often composing the picture. A viewfinder lets you compose with the camera at your eye. Mirrorless viewfinders are electronic; DSLR optical viewfinders use the camera mirror system.

Mode and command dials

A mode dial may select Auto, P, A or Av, S or Tv, M and other modes. Command dials usually change settings such as aperture or shutter speed. The exact arrangement varies greatly between cameras.

Battery, card and connection doors

Learn which door contains the battery and which contains the memory card before you are trying to change either in a hurry. USB, HDMI, microphone and remote sockets are useful only when you need them, so there is no reason to memorise every port now.

The useful goal

You are ready to continue when you can switch the camera on, take a photograph, review it, find the menu, identify the battery and card doors and recognise the main controls without forcing anything.

Try it for yourself

The practical puts this lesson into use. You do not need to complete it perfectly. The point is to notice what your camera does and understand why.