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Anyone Use Sigma 28-300mm With Their Canon?  
User currently offlineSimon Cooper From United Kingdom, joined Apr 2000, 404 posts, RR: 1
Posted (10 years 6 months 1 day 1 hour ago) and read 4847 times:


Just aquired a Sigma 28-300mm Aspherical IF lens for use with my 300D. I need help with the autofocus as from about 200-300mm the camera will not autofocus on anything, which is no good when shooting planes. Just wondered if anyone had experienced any problems like this?

Thanks in advance


2 replies: All unread, jump to last
User currently offlineTFSPhoto From , joined Dec 1969, posts, RR:
Reply 1, posted (10 years 6 months 1 day ago) and read 4838 times:

Hi Simon,

I own the sigma 28-300 and have had no problems with it.. When you say it doesnt focus? Do you get a flashing green dot in your camera's viewfinder? If so, its not the lens its your camera, it means it wont allow you to shoot, or the subject is too close for it to focus e.t.c.

Hope this is some help,


User currently offlineSimon Cooper From United Kingdom, joined Apr 2000, 404 posts, RR: 1
Reply 2, posted (10 years 6 months 1 day ago) and read 4836 times:


Yes, I get a flashing green dot, the camera wont let me shoot. I have tried zooming up close on an object close to me, then I have tried with an object which is a long way from me. From 28 to about 200mm is fine.


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