https://community.usa.canon.com/t5/EOS-DSLR-Mirrorless-Cameras/can-I-use-a-2-0-magnifier-with-a-70-300-zoom/m-p/28435#M12212 Tue, 11 Jun 2013 20:05:08 GMT aussiepapa 2013-06-11T20:05:08Z https://community.usa.canon.com/t5/EOS-DSLR-Mirrorless-Cameras/can-I-use-a-2-0-magnifier-with-a-70-300-zoom/m-p/28435#M12212 Tue, 11 Jun 2013 20:05:08 GMT https://community.usa.canon.com/t5/EOS-DSLR-Mirrorless-Cameras/can-I-use-a-2-0-magnifier-with-a-70-300-zoom/m-p/28435#M12212 aussiepapa 2013-06-11T20:05:08Z https://community.usa.canon.com/t5/EOS-DSLR-Mirrorless-Cameras/can-I-use-a-2-0-magnifier-with-a-70-300-zoom/m-p/28503#M12213 <P>Yes, but depending on the camera model and aperature of lens; you may only have manual focus available. My 7D will still auto-focus on center with f/4 or faster lens.</P> Tue, 11 Jun 2013 21:15:27 GMT https://community.usa.canon.com/t5/EOS-DSLR-Mirrorless-Cameras/can-I-use-a-2-0-magnifier-with-a-70-300-zoom/m-p/28503#M12213 Kip 2013-06-11T21:15:27Z https://community.usa.canon.com/t5/EOS-DSLR-Mirrorless-Cameras/can-I-use-a-2-0-magnifier-with-a-70-300-zoom/m-p/28507#M12214 <P>Good in depth info here.</P><P>&nbsp;</P><P><A target="_blank" href="http://photography-on-the.net/forum/showthread.php?t=41922">http://photography-on-the.net/forum/showthread.php?t=41922</A></P><P>&nbsp;</P> Tue, 11 Jun 2013 21:21:47 GMT https://community.usa.canon.com/t5/EOS-DSLR-Mirrorless-Cameras/can-I-use-a-2-0-magnifier-with-a-70-300-zoom/m-p/28507#M12214 cicopo 2013-06-11T21:21:47Z