The main ways to prevent compact-camera lens errors are to avoid impact and make sure the lens can extend freely.

Helpful precautions:

• Don’t drop the camera, and remember that bumps inside a backpack can still damage it even if the outside looks fine.
• Make sure the camera can’t power on while packed away. If it turns on in a bag or case with the lens blocked, repeated strain can damage the motor or lens mechanism.
• Remove the battery before putting the camera in a tight case or bag so it can’t switch on accidentally.
• Use a protective case, ideally one that protects the camera but still allows safe use.
• If you often shoot in rough conditions, consider a rugged camera designed for better resistance to impacts and environmental exposure.

Dust and debris can also interfere with lens covers and moving parts, so keeping the camera protected in dusty environments is important. In short: avoid shocks, prevent accidental power-on in confined spaces, and use better protection if you shoot outdoors or travel a lot.