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Re: sd400 lens won't close..turns on for aseveral seconds...
Hi, common problem with these, basically some dust particles have become trapped in the shutter or the rails on which the shutter runs on. A quich blast of pc dust cleaner or similar compressed air cleaner will shift it. No need to open any parts of the camera, f you do, you will void your warranty if it is still valid.
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Your older camera can only work with 2GB or smaller standard SD cards. It is not capable of recognizing the newer format 4GB or higher SDHC cards. Fortunately, old format 2GB SD cards are relatively inexpensive these days, and may be purchased on Amazon if your local store no longer carries them.
Your problem in your lens...Try to bring service center. Cause, canon lens it for me it not easy to disassembe dan assemble it again...Different with other camera lens, like KODAK and Samsung. At sony camera "E18" can be "Turn the power off and On again" like my Sony W.35
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:
Not only is a repair shop your only option, you'll probably find it will cost nearly as much to fix than to buy a more recent model.
There are three really weak spots in the SD400 and most small digital cameras: the lens mechanism, the battery door, and the built-in lens shade. Care in closing the battery door so you don't break off the little lugs that hold it shut - using a neck strap so you don't drop the camera - and making sure no sand or grit gets into the lens cap mechanism will make your next camera last a lot longer.
This can be caused by several different situations.
Most commonly the camera has experienced some kind of impact which knocks an element out of alignment, preventing the lens from rotating normally. Symptoms of this include:
*you may hear no mechanical sound at all when the camera is turned on
*you may see visibly mis-aligned components of the lens
*you may hear a loud "snap snap" sound as the camera tries to move the lens when the camera is powered on
The second most common cause is a particle of sand getting stuck in the focus motor drive gears. This prevents the focus element from moving normally and causes the camera to shut off to prevent damage to the lens assembly. Symptoms of this include:
*A loud "buzzing" sound when the camera is turned on, followed by the beeping and shutdown.
Finally the third most common cause of this problem is a broken tooth on the zoom motor drive gears. Symptoms of this include:
*the sound of the running motor with a regular "click click click" sound for several seconds. This will not be a "snap snap" sound, that is a different problem.
*the lens will move in and out easily by hand as if free from any resistance.
All of these problems require disassembly to repair. The charge is around $125 labor at my shop.