I wonder if someone can help me with Mamiya 645 Leaf Shutter lenses. I am considering getting a 150mm f/3.8 LS lens. I have a Mamiya 645Pro (non-TL) with AE finder-N and Winder-N. I understand those leaf shutter lenses were made to work with Pro models. First of all, since these lenses have shutter in them, how do they work in conjunction with the focal plane shutter in the body? Additionally, how do they work in a hybrid system like mine where body is a Pro version but finder and winder are Super version? I have not been able to find any manuals for these lenses. Seem there are very little discussions about these lenses on forums as well. I read somewhere, I'd 'twist' the lens to cock it. How does that work with automation with the body??