[. . . ] ^ ^ \ Camera's focus m ode Cameras N^ F4-Series F90X/N90s F90-Series/N90 F70-Series/N7 Nikon AF (autofocus) cameras (except for F3AF) Other Nikon cameras C M Manual focus (Focus assist is available) Lens' focus mode M/A Autofocus with manual priority Manual focus (Focus assist is available) A Autofocus s M C Manual focus S (Focus assist is available) M Manual focus 13 For use with a Nikon F4-Series, F90X/N90s, F90-Series/N90 or F70-Series/N70 Camera To select autofocus mode, push the focus mode button and rotate focus mode ring until it clicks into position at A. In autofocus mode, you can use either "Focus lock" or "Preset focusing" (with focusing limit switch). To select autofocus mode with manual priority, push the focus mode button and rotate focus mode ring until it clicks into position at M/A. [. . . ] FOCUS LOCK (WITH AN F4-SERIES, F90X/N90S, F90-SERIES/N90 OR F70SERIES/N70 CAMERA) When shooting a subject that is off-center or moving in Continuous Servo Autofocus mode, press this button to lock focus. To cancel focus lock and reactivate autofocus, remove your finger from the focus lock button. Although AF-Lock function can be set on both camera and lens, priority is given to whichever is set first. FOCUSING LIMIT SWITCH (WITH AN F4-SERIES, F90X/N90s, F90SERIES/N90 OR F70-SERIES/N7G CAMERA) With autofocus operation, you can reduce focusing time by setting the focusing limit switch according to the pre-determined distance range for the subject(s). There are three focusing limit zones provided: Close distance — infinity (°°) Set switch to front setting (FULL) Close distance — 7m Set switch to middle setting (7 — 3. 3m) 7m — infinity (°») Set switch to rear setting (°° — 7m) RECOMMENDED FOCUSING SCREEN Various interchangeable focusing screens are available for Nikon cameras to suit any type of lens or picturetaking situation. Since type M screen can be used for both macrophotography at a 1:1 magnification ratio and for photomicrography, it has different applications than other screens. For the K2, B2 and E2 focusing screens, refer to the columns on the K, B and E screens, respectively. For details, also refer to the specific camera's instruction manual. MINIMUM APERTURE LOCK must A For programmed auto or shutter-priority auto shooting, use the minimum aperture lock lever to lock the lens aperture at f/22. Slide lock lever in the direction of the aperture ring and so the white dot on the lever aligns with the orange dot. DEPTH OF FIELD Depth of field can be checked with the white indicator engraved on the lens barrel. If your camera has a depth-of-field preview function, it is possible to check the depth of field in the viewfinder. ) Depth of field can also be checked by referring to the table on page 38. [. . . ] To avoid damage, set the lens at full aperture and use the blower far enough away. €¢ Keep the lens cap in place whenever the lens is not in use. €¢ If you will not use the lens for a long time, protect it from rust and mold by storing it in a cool, dry place. [. . . ]