Nikon 29842-9425-19 D80 User's Manual - Page 128
Technical Notes, Optional Accessories, Technical Notes / Optional Accessories
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Technical Notes Optional Accessories One advantage of digital SLR cameras is the wide variety of accessories they support. See our web sites or product catalogs for up-to-date information on accessories for the D80. Battery packs Flash units (Speedlights) Viewfinder accessories Lenses Batteries ML-L3 remote control AC adapters 10-pin remote terminal accessories Software Filters Use Only Nikon Brand Electronic Accessories Only Nikon brand accessories certified by Nikon specifically for use with your Nikon digital camera are engineered and proven to operate within its operational and safety requirements. THE USE OF NON-NIKON ACCESSORIES COULD DAMAGE YOUR CAMERA AND MAY VOID YOUR NIKON WARRANTY. Picture Angle and Focal Length The size of the area exposed by a 35-mm camera is 36 × 24 mm. The size of the area exposed by the D80, in contrast, is 23.6 × 15.8, meaning that the picture angle of Lens a 35-mm camera is approximately 1.5 times that of the D80. The approximate focal length of lenses for the D80 in 35-mm format can be calculated by multiplying the focal length of the lens by about 1.5. Picture size (35-mm format) (36 mm × 24 mm) Picture diagonal Picture angle (35-mm format) Picture angle (D80) Picture size (D80) (23.6 mm × 15.8 mm) Lens f/-number The f/-number given in lens names is the maximum aperture of the lens. 116 Technical Notes / Optional Accessories