Originally posted by JinDesu The higher price could be some of the additional features that they added, such as focusing recognition (to allow automatic focus-zoom assist) and aperture click enable/disable.
Can you change the function of the rear control wheel to ISO? The new lenses have aperture rings, so it doesn't make sense to have aperture control on both the lens and the rear wheel. If Sony was smart they would allow you to enter/program custom setups for each lens. When you put the 50mm F/2 on it would change the rear dial to ISO control and default to aperture control with the lens ring. When you put on a normal Sony lens the rear dial would revert back to aperture control. Or whatever you wanted it to do.