Message in screen reads "lens

If any amount of moisture has entered the camera this will not be a user fix, it will require service.

Go to this website and try the solutions:

http://camerarepair.blogspot.com/2007/12/fixing-lens-error-on-digital-camera.html

Hi,

The Lens Error is displayed on the LCD screen when the Lens Mechanism is stuck or when affected by any malfunction. If turning the power on and off again does not resolve the error message, try doing a power reset and Initialize option.
Performing a manual power reset
Turn off the camera.
Remove the battery pack.
Press and hold the power button for 30 seconds.
Allow the camera to remain without power for 60 seconds.
Reinsert the battery pack.
Turn on the camera.
You can reset the Camera back to factory default by performing the following steps:
Press the power button.
Press and hold the MENU button for more than 5 seconds. Default Settings will get displayed.
Use the arrow buttons to select OK and press the FUNC./SET button. This will reset all the settings back to factory deafult.
This should resolve the issue. If the issue persists, service may be required.

Thanks for contacting FixYa

Hi,

Checkout this tip about digital camera error messages


Lens Errorfix for Digital Camera

heatman101

Hi,

Checkout this tip about digital camera error messages


Lens Errorfix for Digital Camera

heatman101

Unfortunately, many cameras that fall prey to lens error problems can only be corrected by professional repair. But, here are some last resort troubleshooting steps that you can try that may correct it. They only seem to work for less than 40% of the lens errors, but if the camera is out of warranty (or repair cost approaches that of the camera), they're worth that try.

This message ' lens error - restart camera ' is usually shown under the following condition.
An error was detected when the lens was in motion and the power has been automatically turned off.This error can occur while you hold the lens when it is in motion or you operate it in a location with excessive dust or sand in the air.Try turning the power back on, and resume shooting or playback.If this message continues to display it shows a problem with the lens and you have to open and repair it which I would not prefer as it can affect the fine mechanics inside the camera.You can contact the Canon Customer Support Help Desk from the following link. ( http://www.usa.canon.com/cusa/consumer?pageKeyCode=requestRepair ).Your valuable feedback would be appreciated if satisfied with my solution.Thank you.

If you get that message the lens is stuck.
You should take the camera to a repair center.
They should repair it under warranty.
I have seen this problem a few times already. 

I have a 3 year old Canon PowerShot SX100 IS. While testing an external battery power supply I built, the external power connector pulled out while the lens barrel was extending just after I turned on the camera. Power to the camera was lost before the lens barrel fully extended and wouldn't reset when I repowered the camera. The dreaded error message "Lens error, restart camera" appeared and the camera shut down. I restarted the camera over and over and over again but the lens wouldn't reset. I was extremely lucky to find the information here and read various fixes. I didn't want to take the camera apart so I tried various fixes others have successfully used. I first tried smacking the bottom of the camera hard with the palm of my hand just after pushing the on/off button but that didn't work. The one which worked was smacking the camera on the side immediately after I pushed the on/off button. I smacked it quite hard twice with the palm of my hand then, suddenly, the lens barrel began to move and the lens reset itself back to its starting position. Thanks to everyone who has posted here!

Lens errors are fairly common. Usually it's sand or grit interfering with the lens extension mechanism. Or the camera's been dropped with the lens extended. Or the camera has been powered on, but the lens had been blocked preventing its extension. Or the battery ran down with the lens extended ...

Here's some things that you can do to try to correct it. They only seem to work for less than 50% of the lens errors, but if the camera is out of warranty, they're worth a try:

http://camerarepair.blogspot.com/2007/12/fixing-lens-error-on-digital-camera.html