Question about Sigma AF 70-300mm f/4.0-5.6 DL Macro Super Lens for Canon-EOS

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Dropped sigma 70-300mm lense in water, can I get rid of water spo

Is there any way to get rid of the water spots on the front lense?

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Hi The front lens will screw off after you remove the front cover ring and you can clean it

Posted on Jan 01, 2010


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SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

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Posted on Jan 02, 2017


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Dslr camera

What make and model camera? Which Sigma lens? Do you have autofocus turned on, both on the camera and the lens?

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Hi, Everytime I zoom in or out my sigma lense 18-200, there something inside the lense that shakes. In the viewfinder, the image will shake everytime I zoom in or out the lense. It's a 2 months old...

There's nothing you can do to fix this yourself, it must be repaired professionally.

But as the lens is only two months old then it will be covered by Sigma's warranty so just send it to their service centre in your country for a free repair.

Note that if you live in the UK then you also have the right to return the item to the retailer for a full refund or an exchange under the terms of the Sale of Goods Act.

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70x300mm sigma zoom to be fixed after dropping it - focus does not work properly - seems the grears are stripped

That is not a DIY repair, you cannot even get the parts unless you are in the trade.

Sigma usually offer fixed price repairs so send it back. As part of the repair service they also update the lenses firmware as standard to ensure compatibility with later Canon models.

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I have an 18 - 200 mm sigma lens. problems are: 1. its lock does not work. the lens slides down to lower zoom magnification one raised to a diagonal position. 2. when fully extended, the thrid tube...

Send it in for repair

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I have a sigma 70-300 lens that sqeakes at the longer lengths? Is it possible to resolve at home or do I need to send it in to Sigma? Thanks, Tim

HI Tim Its a small fan type thing inside the lens thats sqeakes it needs a very small drop of oil on its shaft If you are in uk I can do it for £20.00

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Unfortunately, there are electrical differences between early and later Sigma lenses. Although the bayonet connection is the same, and the lens can fit, it will not necessarily connect electrically with the connections on the camera. Sigma can modify the lens for you, but this can be quite costly, and you may be cheaper to look for an alternative lens.

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Sigma 6oomm mirror front lens removal

there is a locking ring you have to remove and then the front optic may fall out if it sticks you may need to heat up the barrel that might work

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The front elments is a sealed unit so I think it must be the back elements you need to no how the fit what size filter is un you lens is a hyperzoom .

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