Hey everyone I just purchased a new lens for my D60. It's an Nikkor AF 28mm f2.8. For some reason, I can't change the aperture when it's on my camera. I can change it of course on the ring on the lens, but my camera says "Lock lens aperture ring at minimum aperture (largest f-number)." So I can't take a picture without the aperture set to 22... When I change the aperture in Manual mode, it looks like it is changing. But why can't I change it on the ring? Is that just for a film camera or something?