Activity › Forums › Canon Cameras › EF Crop Factor Canon Cameras EF Crop Factor Posted by Dan Davis on January 30, 2012 at 6:10 pm Any one know if there is a crop factor with using EF lens’ on a C300. Angelo Lorenzo replied 14 years, 2 months ago 2 Members · 1 Reply 1 Reply Angelo Lorenzo March 6, 2012 at 5:51 am It’s about 1.5-1.6. It’s similar in size to Canon’s APS-C sensor but a little wider and shorter. Reply to this Discussion! Login or Sign Up Public All Members My Connections Only Me PublicAll MembersMy ConnectionsOnly Me Public All Members My Connections Only Me Reply to this Discussion! Login or Sign Up