20 Most Recent Sigma Zoom Telephoto 170-500mm f/5-6.3 APO Aspherical Autofocus Lens for Canon EOS Questions & Answers

Sigma makes lenses with a variety of mounts to fit a variety of cameras. If the lens has a Canon mount then it will work with your XS. If has some other mount, Nikon for example, then it will not.

Could be, because most camera's only can auto focus till f/1:5.6. And if 5.6 is reached at the focal length of 200 mm, the camera stops it from going to a part it can't be focused. Perhaps you try the lens in manual focus, and manual zoom.

Sigma makes their lenses with a variety of mounts for a variety of cameras. A lens with a Canon mount, for example, will not fit onto a Nikon camera. Assuming the lens has a Nikon mount, it is fully compatible with the D200.

If you mean the 150-500mm, you can see a review at
http://www.popphoto.com/gear/2008/12/sigma-150-500mm-f5-63-dg-os-hsm-apo-af

In general, Sigma supertelephoto zooms have a pretty good reputation. However, only YOU can decide whether a particular lens is "good enough" for you.

Turn the aperture ring to its smallest opening (largest f/number). You can control the aperture from the camera body, the same way you do so on a lens without an aperture ring.

go to www.nikon.com/support and ask them, they will answer your question. I have done this before and they are quick to respond

I think so :)

The rubber grip that surrounds the barrel comes off which is very hard to remove without stretching it out of shape. Once off the screws can be removed to add a few drops of solvent to loosen the stiffness

Yes it needs a rechip this can be fixed at your local sigma agent

it will mount fine, but I don't believe you will have autofocus.

If you don't know how to fix it yourself send it to Sigma UK (01707 329999). They are quite resonable charges for that sort of fault. Their website give a price guide depending on lens and fault. Steve

I sent my 135-400 to these guys about 18 months ago- speedy service, and quite good rates :)

http://www.sigma-imaging-uk.com/

There is a website devoted to Err99: http://www.richardsnotes.org/archives/2005/04/29/50mm-lens-contact-points/

I have a Quantaray 100-300 which also displays an Err99 when used in automatic mode. The only way I can use this lens is in AV mode and select the widest aperture.

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.