Lon Williamson <[EMAIL PROTECTED]> wrote: >If a radial contact layout has some advantage, >what is it?
I don't think there is an advantage. It's neither better nor worse, just different. That said, the radial arrangement does get the contacts out of the lens mount itself, which is steel (in better lenses, anyway) and requires all kind of insulating spacers and bushings in Pentax's lens mount. These insulating bits can be eliminated if the contacts are mounted in plastic substructures in the lens and camera. I'm wondering if the elimination of the aperture simulator in the Pentax lens mount is to provide room for some radially-arranged contacts in that spot some time in the future. >I realize that a larger throat lets you produce lenses that >might otherwise be impossible. On the other hand, if I can't get >an available light shot with a 50mm 1.4, then what the hell..... Yes, but having an 85/1.2 or a 50/1.0 in your product line is as much about marketing as it is about taking photographs. You could argue that's it's *more* about marketing than photography. -- Mark Roberts Photography and writing www.robertstech.com
