Sigma 50mm 2.8 EX macro compatible with Canon T2i?

Started Feb 28, 2013 | Discussions thread
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jejton
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Sigma 50mm 2.8 EX macro compatible with Canon T2i?
Feb 28, 2013

I dug up an old Sigma EX 50mm 2.8 macro lens from my film equipment hoping to use it on my Canon Rebel T2i. I keep getting an error message stating that there is a communication problem between the camera and the contacts. I dont get this using my Sigma 70-300mm 1:4-5.6 APO Macro super lens. Is the 50mm not compatible with the digital camerasĀ  ? I've never had to clean contacts before and the contacts on the lens look fine but if it is the contacts, whats the best way to clean it ?

Canon EOS 550D (EOS Rebel T2i / EOS Kiss X4)
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