Question about Canon PowerShot A470 Digital Camera
When the camera is turned on it says lens error please restart. not sure what to do with it
If your camera is under warranty then handle it to the dealer shop to check the problem .
Posted on May 22, 2009
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Posted on Jan 02, 2017
SOURCE: Lense won't open.
Hello Ragamuffin, This is a lens assembly mechanism problem. It is a delicate part of any camera. The lens assembly is composed of several servomotors, coils, some sensors and the actual lens. It does the following jobs: it extends the lens back and forth achieves focus by moving the lens zooms the lens by rotating them in the same time as the whole objective is moved back and forth Each of these operations is controlled by some servomotors who actually move these parts and are also connected to some sensors that pass the readings back to a main processing unit. When you open the camera this processing unit will check to see if the lens assembly is able to do all of these 3 things. Failure to comply with even one of them will result in the error you see. "Lens error" is a generic message, doesn't mean that the lens itself are damaged, could be the connector to their servomotors, sensor failure, some coils that are out of position and things like that. They are all related to the lens assembly. Because this is a VERY fragile part of any camera I don't suggest you to try a DiY repair because you can damage the lens even further. Even service centers have problems repairing this, most time it is done under a microscope and some times it simply can't be fixed. This problems occur most of the time in corelation with the camera being dropped or received some shocks but it can happen out from nowhere, just like that. I would recomand you to go to a service center. Try not the big ones that represent large corporations (because they are expensive), instead look for a smaller one. Tell them you have a lens assembly problem, ask them to make you a diagnostic and then ask for a cost estimate BEFORE they actually repair the camera. If the lens assembly is damaged beyound repair it will need to be changed as a whole, including all connectors, CCD sensor and so on. This could cost from $70 - $200 excluding labor parts that can be about $100. Therefore you should ask them a cost estimate. If your camera is still in waranty you just need to call one authorised service center to have it fixed for free. Good luck and please post back if you encounter any other problems.
Posted on Apr 03, 2007
SOURCE: Lens Error, Restart
The following blog outlines some repair options for a lens error. They won't work for all cases, but they're worth a try if the camera's no longer under warranty:
Posted on Jan 03, 2008
SOURCE: Lens error, restart camera
Lens error is usually caused by mechanical faults concerning lens assembly. The lens cannot extend or retract fully, the error is detected and lens error is returned.
Sometimes this can be fixed playing with the lens during extraction or retraction to help the lens asset getting back to normal.
More often the camera lens must be disassembled and re-assembled by a technician to fix the problem.
Posted on Jul 05, 2009
SOURCE: Lens error, restart camera
Fixing a Lens Error on a Digital Camera
This has to be THE most common failure mode for a digital camera. Some common error messages that might show up on the LCD's of cameras with this problem include “E18 lens error”, or “lens error, restart camera”. Some cameras might show nothing at all, but merely make a beeping noise as the lens goes out, then in, then the camera shuts off. Sometimes the lens won't even move.
The problem is actually quite common throughout all camera brands. 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. Believe it or not, one BIG contributor to lens errors is using a camera case. Sand, gunk, case fibers, etc... accumulate at the bottom of the case. These materials love to cling to the camera by electrostatic build-up from the camera rubbing against the side of the case (especially those cases with soft fibrous intreriors). Once these materials work their way into the lens mechanism, that's all she wrote. I have many Canon's, and NEVER use a case for this very reason.
A camera owner that suffers this problem may have no recourse for having the camera repaired. Many camera makers will not honor repairing this problem under warranty as they claim it is due to impact damage to the camera, or sand or debris getting into the lens gearing mechanism (neither of which is covered under warranty). The quoted repair cost is usually close to or more than what the camera is actually worth.
Fortunately, about half the cameras that suffer this failure can easily be fixed by one of the following methods. None of these methods involve opening the camera, although some have potential to cause other damage to the camera if excessively done. If the camera is still under warranty, before trying any of these, please please first contact your camera's maker to see if they'll cover the repair, or to determine how much they'll charge for the repair. Who knows, you might get lucky. But if they quote you a number that's higher than the value of your camera, you may want to consider the following methods.
The methods are listed in the order of risk of damaging your camera. Thus make sure you try them in the listed order. And remember, these fixes (especially #6 and 7) should only be considered for a camera that's out of warranty, who's cost of repair would be excessive, and would otherwise be considered for disposal if unrepaired:
Fix #1: Remove the batteries from the camera, wait a few minutes. Put a fresh set of batteries back in (preferably rechargeable NiMH 2500mah or better) and turn the camera on. If that didn't work, try pressing and holding the Function or OK button while turning the camera on.
Fix #2: Remove the batteries, then remove the memory card. Then install new batteries, and turn on the camera. If you get an Error E30, it means you don't have a memory card installed, so turn it off, slip in the memory card and turn it on one last time.
Fix #3: Insert the cameras Audio/Video (AV) cable, and turn the camera on. Inserting this cable ensures that the camera's LCD screen remains off during the start process. Thus extra battery power is available to the camera's lens motor during startup. This extra power can be useful in overcoming grit or sand particals that may be jamming the lens. If the AV cable doesn't fix the lens error by itself, consider keeping this cable installed while trying fixes 4, 5, and 7 as a means to provide extra help to these fixes. But note that I DON'T recommend keeping the cable installed during Fix 6 as you may damage the AV port while tapping the camera. Reinsert the cable only AFTER tapping the camera.
Fix #4: Place the camera flat on its back on a table, pointed at the ceiling. Press and hold the shutter button down, and at the same time press the power-on button. The idea is that the camera will try to autofocus while the lens is extending, hopefully seating the lens barrel guide pins in their slots.
Fix #5: Blow compressed air in the gaps around the lens barrels with the idea of blowing out any sand or grit that may be in there jamming the lens. Other variations include blowing with a hair dryer in “no heat” setting, or sucking the gaps with a vacuum (careful with this one).
Now we're entering into the realm of potentially damaging your camera in conducting the fix. There is definitely some risk here, so take care when conducting the following two fixes.
Fix #6: Repeatedly tap the padded/rubber usb cover on a hard surface with the intent of dislodging any particles that may be jamming the lens. Other variations include hitting a side of the camera against the palm of your hand. A lot of people have reported success with this method. HOWEVER, there is also some potential for damaging or dislodging internal components with this method, such as unseating ribbon cables, or cracking LCD screens.
Fix #7: Try forcing the lens. More people have reported success with this method than with any of the other methods. HOWEVER, there's obviously some potential for damaging your camera by using this method. Variations include gently pulling, rotating, and/or twisting the lens barrel while hitting the power button. Attempt to gently straighten or align the barrel if it's crooked or twisted. Another variation includes looking for uneven gaps around the lens barrel, and then pushing on the side of the lens barrel that has the largest gap (note pushing the lens barrel all the way in is NOT recommended as it may become stuck there). While doing any of the above, listen for a click that indicates that the lens barrel guide pins may have reseated in their guide slots. If you hear this click, immediately stop and try the camera.
Posted on May 25, 2010
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