https://community.usa.canon.com/t5/EOS-DSLR-Mirrorless-Cameras/01-error-on-a-t1i/m-p/2055#M3991 <P>To do some systematic troubleshooting, I'd recommend finding a lens that is known to work, and trying that on your T1i body.&nbsp; Likewise, try the lens that gives an error on another (borrowed) camera body.&nbsp;</P><P>&nbsp;</P><P>This will give a clue whether its the lens or the camera body that is the root cause.</P><P>&nbsp;</P><P>Let us know how it goes!</P> Thu, 15 Nov 2012 19:37:15 GMT jfo 2012-11-15T19:37:15Z https://community.usa.canon.com/t5/EOS-DSLR-Mirrorless-Cameras/01-error-on-a-t1i/m-p/1963#M3990 <P>I have cleaned the contacts several times with no luck any suggestions on what I can do next.</P> Thu, 15 Nov 2012 14:21:29 GMT https://community.usa.canon.com/t5/EOS-DSLR-Mirrorless-Cameras/01-error-on-a-t1i/m-p/1963#M3990 dannysheila 2012-11-15T14:21:29Z https://community.usa.canon.com/t5/EOS-DSLR-Mirrorless-Cameras/01-error-on-a-t1i/m-p/2055#M3991 <P>To do some systematic troubleshooting, I'd recommend finding a lens that is known to work, and trying that on your T1i body.&nbsp; Likewise, try the lens that gives an error on another (borrowed) camera body.&nbsp;</P><P>&nbsp;</P><P>This will give a clue whether its the lens or the camera body that is the root cause.</P><P>&nbsp;</P><P>Let us know how it goes!</P> Thu, 15 Nov 2012 19:37:15 GMT https://community.usa.canon.com/t5/EOS-DSLR-Mirrorless-Cameras/01-error-on-a-t1i/m-p/2055#M3991 jfo 2012-11-15T19:37:15Z