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The Zoom Ring has come loose. How do I retighten the ring. It looks like there are threads up on the barrel to keep the Zoom Ring in place. Can you explain how this is done? Or send me the instruction to do so?

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  • curtis553 May 30, 2011


    Sorry to say. It took longer than I expected to receive a response. Yes, you are correct if you were wanting to get to the Focusing Mechanism. I was wanting to reattach the Zoom Ring that came loose. Now that I took a chance on correcting this myself. It is now done.

    To do what I was afraid to try. Is one has to remove the camera mount retainer and the Macro Adjuster and this allows you to access the threaded locking ring that holds the Zoom Ring in place.
    Note 1: The tricky part is to remember how it goes back together.

    Note 2: I used my iPhone to take pictures while I dismantled the lens. It help a great deal when putting the lens back together.

    I do not feel that this response was correct concerning my question. I know that this only cost $6.00. But to some this is a fortune. I would like to have a refund for this instance. I will send my response on to FixYa as well.

    Thank you anyway for your try!




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The rubberized covering would need to come off to gain access to the two screws that hold the guides to the zooming function tightly on. It is a difficult task to do although it the covering will stretch out of shape if done without slow caregoing about it. Simply remove the covering by gently prying up all the way around and pull at the same time. Nothing can be added to give you an easier way to do this such as oil, soap, etc foe it will get inside the lens housing. Once it is off you can see the hold down screws for the zoom barrel

Posted on May 30, 2011


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Hi, not sure if you still have this issue. I have just decided to look into it again, as I had a lot of focus problems with my Sigma 70-200mm HSM lens. Since there is no Sigma support here in Beijing, I took a look - and fixed it.

Here is what I did: On the front of the lens barrel is the rubberised focus ring. This can be removed (gently ply it away from the barrel by sticking a flat bit (or plastic letter opener) between the barrel and the rubber grip. It will come not entirely loose, so you need to work your way around the lens. Keep doing that until you moved it about half way forward. At this point two fixing screws become accessible on the barrel below.

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Use these at own risk as it may further damage the camera.

Firstly , try connecting your ac adapter or usb cable.

Try holding the shutter button while switching on the camera.

Look at the lens , and if some of the lens 'circles' is misaligned or not concentric then try wiggling it (while holding camera lens down).

Try gently pushing or pulling the lens when it extends but this is risky as it may cause the lens barrel to slip out of its guidance system.

Another way to do this is to place the camera lens down on a hard surface and then power it up. Be sure to use a soft cloth or something similar as to not scratch your lens or casing. Let the lens push the camera up and down a few times and sometimes the little resistance provided by the camera is enough to get things going again.

Try hitting your camera near the lens on the body with the soft tissue on the palm of your hand.

Other than that , I would take the camera to a repair center for a evaluation to see if it would cost more to repair than to replace the camera.

If it is still under warranty I would suggest you take it in before trying any of these steps and remove any off-brand batteries or accessories as some stores are really fussy about warranty repairs on camera's with non-brand accessories.

You can also have a look at THIS link.

Hope the advise is useful. please do not hesitate to let me know if you need any further assistance. Also, please be so kind to let me know if you found this helpful.


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