User manual NIKON AI-S ZOOM-NIKKOR ED 80-200MM F/2.8

[. . . ] Note: When mounting the lens on a camera with a meter coupling lever (AI type), make sure that the camera's meter coupling lever is correctly positioned; when mounting on a camera without this lever (non-AI type), "manual" maximum aperture indexing is required. In both cases, refer to the camera's instruction manual. FOCUSING/ZOOMING Bt • B 2 • B 3 First, loosen the locking screw ® on the focusing/zooming ring ® . [. . . ] 10 DEPTH-OF-FIELD SCALE A group of colored lines, curving out toward the front of the lens, are engraved on the lens barrel. To find the depth of field at a particular focal length and aperture, first compose and focus the lens on the subject. Then check the numbers on the distance scale opposite the colored lines to find the depth of field at that aperture. The colors of the pairs of lines correspond to different lens apertures. The continuous curved lines of the depth-of-field scale give the reading at any focal length. You can also observe the depth-of-field through the viewfinder by pressing the depth-of-field preview button on the camera. INFRARED PHOTOGRAPHY In infrared photography, the plane of sharpest focus is slightly more distant than the one produced by visible light. As a rule of thumb, you can compensate for shift in focus by referring to the curved red infrared line © engraved between the depth-offield index lines on the lens barrel. After sharply focusing the subject through the viewfinder, check the focused distance and turn the focusing ring to the left until the prefocused distance figure is aligned with the infrared compensation line. Then attach the filter to the lens and take the picture. NOTES ON USE OF TRIPOD MOUNTING COLLAR With this lens mounted on a tripod via its tripod mounting collar, you may experience some problems when shifting from horizontal- to vertical-format shooting or vice versa in the following situations. In this case, do not force to turn the lens; otherwise, you may damage the equipment. In motor-drive shooting with a remote cord attached to the motor drive's remote terminal or a cord attached to the external power terminal. When using an F3-series camera with the AF Finder DX-1 attached. When using an F3- or F2-series camera with an Action Finder attached. 5 ft) to infinity (°°) Focusing/zooming control: Via a single control ring; reference marks for focal length settings of 80mm, 90mm, 105mm, 135mm and 200mm are provided Aperture scale: f/2. [. . . ] If this happens, wipe it again with a cotton cloth moistened with alcohol. €¢ To protect the lens surface from dirt or damage, the use of an L37C filter is recommended at all times. The lens hood also helps to protect the lens. [. . . ]