hi im new here ive been reading for a while and so far i like the site








anyways my question is about EF and EF-S i really want a 50mm 1.4 lens but i have an xt.


would there be a crop factor from what ive been reading there would be but i see yes's and no's


so the real question would be are all EF lens for full frame and EF-S for the apc-s