I have 50 and 85 at 1.8, and thought about getting the 1.4's in manual focus to shoot mostly on digital and seldom on a film AF body and a FM2N. What is your views on that? Would I be frustrated with the manual focus lenses? When I travel I like to do natural light handhold photography like walk and about in Hong Kong or Tokyo in the night etc. hence the very fast apertures. How are AF lenses on a manual focus body in your experience? Cheers.