- If you need clarification, ask it in the comment box above.
- Better answers use proper spelling and grammar.
- Provide details, support with references or personal experience.
Tell us some more! Your answer needs to include more details to help people.You can't post answers that contain an email address.Please enter a valid email address.The email address entered is already associated to an account.Login to postPlease use English characters only.
Tip: The max point reward for answering a question is 15.
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 camera mounts. If you get the lens with a Canon mount then yes, it will fit any EOS Rebel camera body. A lens with a Pentax mount, for example, will not fit a Canon camera.
You need a T-mount ($30) for a Canon on E-bay or a big camera store. There is NO connections to the camera body, so you have to turn off auto focus and go to "Auto" mode (the shutter speed will change) as the lens is fixed at F8. The mirrors give very little depth of field, 4 or 5 feet when far away but everything in back is a blur of circles. At F8 the shutter speed can go slow and at 600mm you may need a tripod.
Put the macro adapter on the camera and move the camera in and out from an object to try to focus the object in the display. Remember, macro is very small, very close and very small field-of-focus. I hope this helps.
Did it ever work on this camera?
I have seen some Sigma lenses that are auto focus on canon film cameras but then when put on the digital they dont work right. If you have used it on this camera then make sure the lens is clean.sometimes dirt on the front wil make it try focusing on the dirt. Next try focusing in manual focus to make sure the focus is working. Then take the lens off and then put it back on and make sure it clicks into place.
Let me know if none of those things work. also make sure to try focus on something close and somthing far away.
Hey kgconstruct, The lens description that your posting is categorized under is a 75-300 f/4-506 DL lens for Nikon AI. If this is correct then no this lens won't work on a Canon camera. I am assuming this isn't correct and the lens you have is for a Canon camera, and if this is true this lens should work on the XTI. If you’re thinking of buying this lens I would go to a local camera store that carries this Sigma lens and try it out first to make sure you like it. I hope this helps! Sincerely, Allan Go Ahead. Use Us.
(From Sigma lens literature) Capable of macro photography, this
lens has a 1:2 maximum close-up magnification at the 300 mm focal
length. It's the ideal high performance lens for portraits, sports
photography, nature photography, and other types of photography that
frequently use the telephoto range. It also has a switch for changeover
to macro photography at focal lengths between 200mm and 300mm with a
maximum close-up magnification from 1:2.9 to 1:2. The minimum focusing
distance is 1.5m / 59 in. at all zoom settings.