How doi fix my canon powershot sd850 is camera it give me a error msg lens error restart camera

SOURCE: camera lens not retracting

the battery is damaged

SOURCE: lens error message Canon Powershot A550

Canon A550 and A560 have the same body and most of the internal parts, including lens assembly are the same. Canon won't sell individual parts within the lens assembly. There could be two possiblities. One is (unlikely) that the lens assembly components have been knocked off from their position. The other is that because of a knock, or dropping the camera, the gears in the gearbox of the lens assembly are broken. These gears are the same as the ones in A530/A540, and are available from ebay for $12.50 including shipping. Checkout my site for how to open up the camera and the lens assembly to replace these:

http://pkrobot.freehostia.com/MiscElectronics2.htm

For A550 and A560, if you take it to the professional repair shop, it might not be cost effective, since it might cost around $90. Canon does not sell gears, so they might have to replace the entire lens assembly. The new camera is available these days for around $140.

SOURCE: lens error restart camera but

Hi

Your lens is defective needs to be cleaned, repaired or replaced. If you got sand in the gears it will definitely jam up the lens! Sometimes you can tear down the lens and clean out the sand, and if none of the gears are damaged the lens will then work properly again.

There are online places that will do it for a decent price and there are others that overcharge by way too much.

I know this because I OWN ONE that charges a reasonable price to do the repair! (Google 'darntoothysam')

Just let us know if we can help! Good luck from

Darntoothysam com

Thomas

SOURCE: Lens error, restart camera

Sir,
The problem seems that miniscule dust/sand particles jam the gears which moves the lens.
It is possible to turn the lens motor by hand bit by bit and remove particles stuck in the gear.
Also try restoring the factory settings and resetting the camera and seeing if that makes the error to go away. To do that, hold down the Menu button for five seconds. This should reset everything and (hopefully) make the error stop. If it doesn't, then you've got a separate problem-- come back and let us know if the error is still there. Also, if you have photos stored on the camera's internal memory, resetting the camera will delete those so make sure to download them first.
Thanks
Good luck!

SOURCE: lens error, restart camera for canon power shot SX120 IS

This is probably THE most common failure among digital cameras. There's a halfway chance of fixing it yourself, described here:
http://camerarepair.blogspot.com/2007/12/fixing-lens-error-on-digital-camera.html