First images from upcoming Samsung S 300mm f/2.8 ED OIS: Digital Photography Review
you can put a FF 300mm f/2.8 on an APS-C sensor too!! The focal length and aperture are function of a lens, equivalence has nothing to do with it. A FF 450mm f/4 on an APS-C will give you equivalent of 675mm f/5.6! basically the point being there isn't mu...