Nikon F70 Instruction Manual
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Contents
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47DESelecting the exposure control mode means deciding if youwant the shutter speed and/or lens aperture to be setautomatically or manually.The Nikon F70/F70D camera offers two types of programmedauto exposure modes, Auto-Multi Program (A) and Vari-Program (S), as well as Shutter-Priority Auto (F), Aperture-Priority Auto (D), and Manual (G) exposure modes.SELECTING EXPOSURE MODEis controlled by shutter speed and lensombination results in a correct exposure.s aperture settings are based on the ISOin use and the operation of the camera’sem.en aperture and shutter speed is asn shutter speed either doubles or halvesnsmitted. For example, a shutter speedhalf the light of 1/250 and double the lighterture f/8 passes half the light of f/5.6f f/11. If the correct exposure for a scenee can also select 1/250 at f/11 or 1/1000e same exposure results, and so on.Programmed Auto exposure modes (A/S)With the F70/F70 D’s microcomputer choosing the combinationof shutter speed and aperture automatically, you canconcentrate on picture composition, without worrying aboutexposure.Note that programmed auto exposure modes operate only withNikon lenses that have a built-in CPU (AF Nikkor and AI-PNikkor lenses).When S for Vari-Program is selected, you have a choice ofeight options: (1) Portrait Program, (2) Hyperfocal Program, (3)Landscape Program, (4) Close-Up Program, (5) Sport Program,(6) Silhouette Program, (7) Night Scene Program and (8) MotionEffect Program.For details about Vari-Program, see pages 61 to 67.Auto-Multi Program (A) is used for most common picture-takingsituations. The chart at right shows the shutter speed/aperturecombinations for Auto-Multi Program that are selected at eachEV (exposure value) brightness level.In Programmed Auto exposure mode, you can use the FlexibleProgram function to temporarily shift an automatically selectedshutter speed/aperture combination and obtain the desiredshutter speed/aperture (p. 51).Program chart of Auto-Multi ProgramTo check shutter speed and aperture values, follow either theblack or red line to where it intersects the diagonal line.With 50mm f/1.4With 180mm f/2.8With 300mmf/4With AF Zoom-Nikkor 35-80mm f/4-5.6D at35mm and 80mm focal length settings.High-brightness limit for Matrix Metering-4-312-2-101234567891011-5f/1.422.845.681116223230" 15" 8" 4" 2" 1" 2 4 8 15 30 60 125 250 500 1000 2000 4000232221201918171615141316 31EVsec.-4-312-2-101234567891011-522.845.681116223230" 15" 8" 4" 2" 1" 2 4 8 15 30 60 125 250 500 1000 2000 4000232221201918171615141316 31f/1.4EVsec.(ISO 100)3 PM Page 46 |
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