topic Err01 Communication Error in Astrophotography in EOS DSLR & Mirrorless Cameras https://community.usa.canon.com/t5/EOS-DSLR-Mirrorless-Cameras/Err01-Communication-Error-in-Astrophotography/m-p/28067#M3443 <P>I can connect my 6D to my telescope for manual focus and exposure no problem. However, when I insert my 2x tele-extender, I get an "Err 01 - Communications between the camer and lens is faulty."</P><P>Is there any way around this?</P> Tue, 11 Jun 2013 13:29:40 GMT nellesp 2013-06-11T13:29:40Z Err01 Communication Error in Astrophotography https://community.usa.canon.com/t5/EOS-DSLR-Mirrorless-Cameras/Err01-Communication-Error-in-Astrophotography/m-p/28067#M3443 <P>I can connect my 6D to my telescope for manual focus and exposure no problem. However, when I insert my 2x tele-extender, I get an "Err 01 - Communications between the camer and lens is faulty."</P><P>Is there any way around this?</P> Tue, 11 Jun 2013 13:29:40 GMT https://community.usa.canon.com/t5/EOS-DSLR-Mirrorless-Cameras/Err01-Communication-Error-in-Astrophotography/m-p/28067#M3443 nellesp 2013-06-11T13:29:40Z