PowerShot G5 Digital Camera: Cannon power shot will not turn on and lens were n...

get online and go to:

http://www.mica.edu/Documents/TSS/AV%20Manuals/still_canon_g5.pdf

You will get a manual in PDF format you can read with adobe reader. if you have trouble I have the manual I can send you in an email.

It may have been damaged. Was it exposed to a lot of heat?

Its not easy to dismantle this kind of gadget, a broken gear inside or some mechanical parts of the lens assembly caused lens not to open or a motor controller itself, so better to find a cannon service center ear you.

it shows lens error restart camera

Sending it to an authorized cannon repair facility. the lens must be replaced.

My Canon Power Shot SX100 IS says lens error. restart camera. Help

Lens errors are fairly common for all digital cameras. Usually it's sand (be careful at the beach) 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

powers on but no picture through the viewfinder

Try Rebooting the camera. Take out the existing batteries and insert some new ones. Then, turn it on and the lens should go back inside!

Hope this helps.

The following blog outlines some repair options for a lens error:

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