Question about Sigma 70-210/4-5.6 UC II AF Zoom Lens for SA 760110

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Leaking some thing from full zoom

I have a sigma uc zoom 70-210mm 1:4-5.6 multi-coated lens and when i push out to focus at 210 there is a piece of string that comes out which looks like the seal to me with some grease i think is there a manual for me too repair it my selve it is not in warranty and i have had it for 14 years so not paying the price in the shops.

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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

Posted on Aug 08, 2009

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Hi have a panasonic gx7been given 2 sigma lenses can i fit to my camera 1 x sigma 1:4.5 F=100 - 200mlti coated zoom lens 1 x sigma mini wide 1:2.8 f=28mm multi coated lens thank you


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.

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Is it possible to see the user manual of the sigma uc zoom 70-210?


There's usually not a lot of information packed with standard zoom lenses besides the warranty paperwork and contact information. You may find contacting Sigma via their website linked below will get you the best results for whatever you're looking for.


Sigma Corporation of America

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Will the Nikon Sigma 70-210 F4-5.6 55MM AutoFocus lens fit on my nikon d40?


Yes, it will fit. However, lacking a focus motor, it will not autofocus on the D40.

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Can an old film sigma uc zoom 70-210mm lens work on canon digital cameras


In short, no. Not without an expensive adapter which includes a corrective lens (which also reduces the optical quality). Even then, the lens will be fully manual only and might only be operable at the widest aperture setting.

If your Canon uses the APS-C sized sensor (all except a few highly expensive professional full-frame models do) then the 70-210 lens will produce a cropped image as if you were using a 112-336mm lens, so it may also be less useful to you.

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Hi I bought a pro-spec 70-210 lens for my Sony Alpha. When you go to zoom out it doesn't twist. You can pull it straight out...Is this how it should work? The rest of my lenses all twist out


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.

I hope that my reply has been of use to you, please return the favour by rating my answer.

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Hi
Dose the lens make any movement or is just dead
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(From Sigma lens literature)
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Zoom lens


What camera are you using is the lens making a noise when it stops focusing  call sigma imaging uk 01707 329999

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