On my Canon Powershot A510, the retracting lens cap doesn't open all the way when I turn the camera on. It will open when I flick it with my finger, but then, of course, the lens gets smudged. Any suggestions? Thanks!
I was messing around with this today, ended up where it seemed in was working.
Power up, let lens out, then take out batteries. Pry off silver band patiently using fingernails. Then pry off overlying black plastic piece. There are four units underneath, pay attention to how these are put on, mine popped off, but it wasn't too hard to figure out how to put back together. There are pins and holes and kind of fits like a jigsaw. Once off clean with alcohol where you can.
Put batteries back in and open and close a few times. This will help understand movement where pins of lens cover pieces go. When putting these back on make sure camera is in off position.
The lens cover pieces need to be put on so that the pin portion has some resistance. Move one so that it drops in then push up to get other in place. Let them come together and hold these in place.
The two smaller pieces will close the cover. Put the hole of the closer piece over the pin. Then move slightly so you can retract spring with a small instrument and subsequently engages pin on closer. Place top black piece back on, then silver.
This worked for me, hope it does you also! Good luck.
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The lens has probably got something in the retraction mechanism that is stopping it retracting. This can be something as simple as sand or grit or as a result of a drop or knock. In most cases the camera will need to be stripped apart to remove the lens assy before it can be repaired. This is best left to a professional camera repair shop.
A stuck shutter is another common failure mode for digital cameras. The symptoms of a stuck or "sticky" shutter are very similar to CCD image sensor failure. The camera may take black pictures (for shutter stuck closed), or the pictures may be very bright and overexposed, especially when taken outdoors (for shutter stuck open).
To confirm a stuck shutter, put the camera in any mode other than "Auto", and turn the flash OFF (you don't want to blind yourself for the next step). Next look down the lens and take a picture. You should see a tiny flicker in the center of the lens as the shutter opens and closes. If no movement is seen, then you likely have a stuck shutter. If so, please see the following for further info and a simple fix that may help: http://camerarepair.blogspot.com/2009/05/simple-fix-for-stuck-shutter.html
I have the exact same problem, took it completely apart removed the zoom motor, physically turned the zoom gear and retracted the lens, reinstalled the motor, put it all back together, and found that I had the same problem and the lens wouldn't move out, so im pretty certain that the motor is bad, as the lens moves smoothly once the motor is not attached to it... looking for a replacement motor as i type...
The E18 error is related to the LENS not able to retract fully. If it is still under warranty, I would advise you bring it to the nearest service center. This is to avoid further damages. Otherwise, you can try a few things below.
There are a couple of things you can do.
1. Turn it on and then off. Spray canned air around the lens.
If trick 1 will not work out, try this.
2. Make sure the battery is fully charged. Turn on the camera and then give it a couple of firm whacks on the side. Make sure nothing is blocking the lens and wait for it to fully retract.
Let me know how it goes.
Try blowing lots of compressed air around the open lens shutter to clean the mechanism. Or use a hair dryer for a few seconds (don't want to heat up the camera). Also with the lens barrel extended and pointed downward, tap the lens barrel with a pencil while you extend and retract the lens by powering the camera on and off. A grain of sand in the mechanism is usually the culprit, and you want to try to dislodge it.
You can open it up, but only as a very last resort. The above procedures usually work if you try them enough. But for those particularly nasty stuck mechanisms, here's an example repair on a Canon Powershot A400 (do this at your own risk, and it will void your warranty):