12. Recommended focusing screensVarious interchangeable focusing screens are available for certain Nikon SLR camerasto suit any picture-taking situation. The ones recommended for use with this lens are:1\ Screen ! I EC-B G1ICamera ~ A B i C , E EC-E F G2 G3 G4 J K l M P UF6 I~ (g'- g - , - - - - g - g -F5+DP-30 leg!© g' g 0 g g- (+0.5) - -F5+DA-30 g © 0 0 - g - g -F4+DP-20 - © g - 0 © © - ©F4+DA-20 !- ©I g - 0 © © - ©© : Excellent focusing0: Acceptable focusingSlight vignetting or moire patterns appear in the viewfinder, but not on the film.Not available.(): Indicates degree of exposure compensation needed (Center-Weighted meteringonly). For F6 cameras, compensate by selecting" Other screen" in CustomSetting" b6: Screen comp." and setting the EV level to -2.0 to +2.0 in 0.5 EVsteps. When using screens other than type B or E, "Other screen" must beselected even when the required compensation value is "0" (no compensationrequired). For FS cameras, compensate using Custom Setting #18 on the camerabody. For F4-Series cameras, compensate using the Exposure Compensation Dialfor the focusing screen.See instruction manual of the camera body for more details.Blank box means not applicable. Since type M screen can be used for both macro-photography at a 1: 1 magnification ratio and for photomicrography, it has differentapplications than other screens.• When using the Band E focusing screens in cameras other than those listed above,refer to the columns for the Band E screens.13. Lens care• Clean the lens surfaces with a blower brush. To remove dirt and smudges, use asoft, clean cotton cloth or lens tissue moistened with ethanol (alcohol) or lenscleaner. Wipe in a circular motion from center to outer edge, taking care not to leavetraces or touch other parts of the lens.• Never use thinner or benzene to clean the lens as this might damage it, result in afire, or cause health problems.24