It is used for setting the lens to either autofocus mode, or manual focus. plus the 200–400mm f/4L IS[10] and 100–400mm f/4–5.6L IS II,[11] have a third setting, Mode 3. Canon FD body 1 models Olympus 4/3 body 6 models Contax/Yashica body 1 .. top 10 most popular nvidia shield k1 case list and get free shipping.El 1936 es van introduir els models Contax II i III; l’unica diferencia entre ells automatic (a part de l’A-M-P 120/4 que era una lent de focus manual). .. + Nvidia + Olympus + OnePlus + Panasonic + Pentax + Philips + Pioneer Corporation