----- Original Message ----- From: "Kostas Kavoussanakis" <[EMAIL PROTECTED]>
It makes the lenses lighter than if they carried a motor. It means that I only have one motor to carry around instead of one per lens.That's two appealing features for me.I am also wondering of it additonally ensures that the mount stays the same.
The EF mount hasn't changed, even with the addition of USM and IS.Christian
