Image stabilizer stopped working on Canon 70-300mm lens
The image stabilizer is not working on my Canon 70-300mm lens. I've put another image stabilized lens on my camera and it does work, so I don't think it is my camera. Any suggestions? Do I need to find a camera repair shop? If so, how do I find a reputable shop?
Re: image stabilizer stopped working on Canon 70-300mm...
Taken that you made sure that the IS switch was on, on the lens, yes you have to find a camera repair shop to get it fixed.
The best shops are authorized Canon repair shops. You can call Canon support, and they should be able to give you advice on what shop to send the lens to.
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If that fails, whether warranty is still in effect or not, I suggest you contact CanonUSA repair and ask their opinion. If still in warranty, and repair/replacement is suggested by Canon, ask them for an RMA for return by UPS.
They're most definitely not the same lens, even discounting the Image Stabilization feature. The L has 18 elements in 15 groups. The IS has 23 elements in 18 groups. There's also an IS II, which has 23 elements in 19 groups.
Look at http://www.usa.canon.com/consumer/controller?act=ProductCatIndexAct&fcategoryid=150 and you can compare them yourself.
Sorry to hear about your Canon EOS 50 D. problem. The first thing I would check is to be sure the contacts on the back of the lens are clean and the corresponding contacts on the camera body are also clean. You can use isopropyl rubbing alcohol and a Q-tip to clean these contacts. If this fails to make the system work we will need to test the lens features. begin by turning the autofocus and the image stabilizer both off on the lens.Set the camera two the AV mode. Adjust the F. stop to read F-22. Look at down the front of the lens barrel as you press the depth of field preview button. Every time the button is depressed you should see the diaphragm open and close inside the lens it should do this as quickly as you press the button if it fails to open and close the problem you're experiencing is probably with the diaphragm control unit.if you find the diaphragm functions properly the next step would be to engage the image stabilizer again attempt a photograph if it fails then it's probably a lens related issue and I would contact Canon directly for war to service. You may also find that if you've purchased your unit locally that your local store or if it's been within a two-week period may exchange a product for you I would be happy to answer any further questions you might have feel free to contact me directly@Daveadvancecamera.com
I had this problem too, then my camera started getting Error 99 (there is some problem) and not working. If you look at this website and follow the steps under Update 2 http://www.richardsnotes.org/archives/2005/04/29/50mm-lens-contact-points/ I think you will fix your problem. The connections between lens and camera probably have a little dust in them, use a soft rubber eraser to clean them. Make sure no dust or pieces fall into the camera or lens when cleaning!
A slight humming, and click when it is turned on or off is normal.
Try taking the lens off the camera, and use a blower to blow the back of the lens, and same for the front. If the lint is actually inside the camera, between two pieces of glass, it needs to be serviced by Canon. Make sure to check and see if you have a filter on the front that can be removed, it might be in there.
Have you tried this same lens with other cameras? Do you have another camera body you can try? or perhaps a friend with a Canon EOS Camera?
Also try the following please:
Remove the lens. Look at the lens mount contacts, take a Cotton swap with some rubbing Alchol & clean the contacts very well, both on the lens and the camera body.
Is your camera reading the lens aperture range correctly (at least most of the time)?
Also since you replaced the PCB on the lens, isn't it under warranty?
Let me know if this works. Thank you, AJ.