20 Most Recent Sigma Telephoto 105mm f/2.8 EX Macro Autofocus Lens for Nikon AF-D Questions & Answers

The user manuals coming with lenses most of the time have little information about how to use them. The lens will have a MF and AF and perhaps a VR switch. If you want to learn more about macro photography, check this site from Ken Rockwell, where he is explaining how to do so with a Nikon camera. Be aware the macro lenses are designed to focus close to the camera and will have the sharpest pictures close to the camera. I would not say you can't use a micro as a tele, but the results with a normal 105 could be better. Still I think you have a great lens with your Sigma. How to Shoot Macro

Turn the aperture ring to f/32 and leave it there. After that, forget the lens has an aperture ring at all. You can let the camera control the aperture in any mode except the M and A modes. In the M and A modes, you control the aperture by turning the command dial on the front of the camera, the same way you control the aperture on a lens without an aperture ring.

In all modes the aperture ring on the lens should be locked at the smallest aperture. In the M and A modes you control the aperture by turning the command dial on the front of the camera. In P and S modes you control the aperture indirectly by turning the command dial on the back of the camera.

Hi there,

Well you can please follow the link below to get your manual -

http://www.dphotojournal.com/sigma-105mm-f28-ex-dg-macro-reviews-sample-photos/

(click on the manual tab and then click on - Download Sigma 105mm f/2.8 EX DG Macro User Manual (PDF – 67kb), thats it)

Good Luck!!

Thanks for using FixYa!!

Mirror lenses have no aperture nor AF, so they mount via a T mount. A $30 item that screws on the end of a mirror lens that fits your camera. A mirror lens has it's physical likes and dislikes against a glass 500mm. A glass 500mm will give a better image if you can stop down to F8 F16. Then you have shutter speeds to consider and those lenses are usually connected to the camera's contacts. So they can be specific to a single body. There are older Tamron lenses that take Adaptall mounts, they are old and hard to find. But they solved the multiple body problems for "auto" program lenses. None had AF, when AF camera around, we were back to individual lenses per body.

Hi I had a similar problem with a 50mm prime and I fixed it by locking the aperture ring on the lens in place.

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.