MikeFromMesa
Veteran Member
There is no indication that the t4i will not work perfectly with all of the existing EF and EF-S lenses. Further, as I understand it, the new STM lenses are specifically designed to be silent when focusing and to accommodate full-time auto focus. That does not mean that these lenses will also not work with existing Canon DSLRs.This camera is not for people who are invested in lenses.
In short, to the best of my knowledge, the STM lenses are compatible with existing DSLRs, including those that do not support full-time auto focus (which is all of them) and the t4i is compatible with all of the existing lenses. Based on that I believe that your statement about this camera not being for people who are invested in lenses is wrong.