John_Nikon_F
Member
Nikon initially made the AF-D lenses with the aperture ring drilled at f/8 and f/4 so rabbit ears could be added. Nice if you want to use it on pre-AI bodies.
I think the later AF-D's no longer have that.
Most of them did. They didn't drill them, but did provide dimples in the aperture ring to show where the rabbit ears needed to go. I'm probably going to leave this early AF 50/1.4 stock. I have a 50/2 AI and a 55/1.2 AI, plus a factory AI'd 55/3.5 to cover the normal range on the F and the Nikomat bodies. All of them are still with rabbit ears, the 55/3.5 with its original solid ears with the line in the middle of the mounting flange.
Anyway, picked up a MF-16 for my FM2n. $10 shipped from Roberts Camera.
-J