08-25-2014 06:13 PM
It will work in the sense that you will get a 1.4X magnification, but the Rebels won't autofocus since f/4.5*1.4 results in an effective aperure smallewr than f/5.6.
08-26-2014 09:13 AM
"Does the 1.4 111 telephoto extender work ..."
It is not just this extender, no 1.4 extender will work.