I'm planning to buy an SGPro pretty soon. I'm going to start with the following 3 Nikon lenses:
28mm f/2.8 AI or AI-S
50mm f/1.4 AI or AI-S
85mm f/1.4 AI-S
My question is regarding the first two, is there a major difference between the AI and the AI-S if used with the SGPro? Because...