Turning your camera on and off safely

This is deliberately a short lesson. Switching a camera on and off is simple, but a few habits help avoid interrupted file writing, unnecessary battery drain and confusion when the camera appears not to respond.

Find the actual power control

Dedicated cameras usually use a switch or lever marked ON/OFF, although the position varies by model. Phones use their normal wake and camera controls. Do not copy instructions for another camera if your controls are different.

Give the camera a moment

After switching on, wait until the display or viewfinder is ready before assuming something is wrong. A camera may take a little longer if it is waking from sleep, checking a card or completing an internal process.

Do not interrupt a file being written

After taking a photograph, some cameras show a card-access light while data is being written. Avoid removing the battery or memory card while that light is active. If the camera is processing a burst, RAW files or a long exposure, let it finish.

Sleep is not the same as off

Many cameras dim the screen or enter standby to save power. A half-press of the shutter will often wake them. If nothing happens, then check the power switch and battery before assuming the camera has failed.

Before putting it away

Switch the camera off before changing a battery or card unless your manual specifically says otherwise. Fit the lens cap if appropriate and make sure doors and covers are closed without forcing them.

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.