20 Most Recent Sigma 70-210/4-5.6 UC II AF Zoom Lens for SA 760110 Questions & Answers

It may need a new drive belt

Yes. It's a push pull zoom action.

One touch zooms as used on 35mm film SLRs used to have the same mechanism, the zoom ring twisted as well to achieve focus but now that most lenses are autofocus that's unnecessary. So you have a lens which just retains the push-pull, a far more natural action in my opinion and usually faster than a rotating zoom. Once you get used to it I think that you'll prefer it.

By contrast, most modern zooms have what was considered in 35mm terms to be an old-fashioned twin touch zoom: one ring was turned to zoom the lens and another was turned to focus it. This sometimes meant that after zooming you had to refocus; your push pull zoom will likely have a more technically demanding constant focus zoom action, there will be an additional manual focus control as well, but it's very much a minor secondary control used only when your AF has broken or is switched off.

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Hi
Dose the lens make any movement or is just dead
it may need a new AF motor

the string is a felt dust stopper if you take off the rubber zoom grip you will see black tape peel off the tape and the base of the zoom ring will slide off just remove the rest of the felt clean the barrels and put back it will be ok without the felt you can stick back the part of the zoom ring with tape

It is not normal for the focus ring to move slightly when using autofocus mode on the Sigma 70-200mm f2.8 APO EX lens. This could be caused by a problem with the lens or with the camera body. One thing you can try is to check if the lens mount on the camera is clean and free from debris, as this can cause the lens to move when the camera's autofocus system is trying to adjust the focus. You should also check if your lens firmware is updated to the latest version and make sure your camera firmware is also up to date.

You can't do this yourself. It needs to be carried out by professionals and is a 'clean room' with service techs in full dust proof protective wear. Send it to them. https://www.sigma-global.com/en/support/ ..

Question edited for clarity. You get the Sigma lens for the camera in Canon fit. https://www.google.com/search?q=sigma+lens+af+75-300+for+canon+rebel+xti Can you use Sigma lenses on Canon cameras? Since Sigma lenses are made to be fully compatible with Canon cameras, they are backwards-compatible. This means that you can use a Sigma lens on a Canon DSLR camera. Similarly, the Sigma cameras are backwards-compatible with Canon lenses. Macro adapter loses the AF feature. https://www.google.com/search?q=sigma+lens+af+75-300+mount+adapter+ring+for+canon+rebel+xti

Taking it apart is not the problem - re-assembling it will be. Unless you have access to an optical laboratory, where laser instruments can measure the exact tolerances required, don't even think about it. You will be left with a pile of optical components, and a far higher repair bill than if you had just let the experts sort out the problem in the first place.

Best you don't open it at all as you can damage the lens. Send back to manufacture

Tiffen is a brand of filters not a lens. if your sigma lens will work on 1 camera and not on the other then check the lens mount, electronic contacts, clean them if needed. check the settings in the camera if there needs to be a change.

Take it to a Qualified technician and get it fixed properly. I have this same lens for my Pentax K3, its a very good lens and worth getting it fixed by a proper tech who knows what they are doing.

OK - what about it ?

This is a cycle computer not a camera. Try Sigma-Sport

this was an answer on fixya need instruction sheet for pama sigma 2300 handsfree

Very good question - what is it, and what's wrong with it ?

It depends totally on whether your camera takes interchangeable lenses, and if so, do these lenses have the same fitting ? Your camera manual should tell you if you can fit other lenses to the body - if so, follow the steps to remove the lens which is currently attached, and compare the fitments with this lens and the two others you have been given. If you are still not sure, then take it all to your local friendly camera dealer, who will be able to advise you. Do NOT try to force the new lenses onto the body - this is a sure way to render them inoperable.

Do what anyone else would do. Search for it on Amazon or ebay or any other place you can find the lense....go to the manufacturers page, etc.