Nikon D70 Manual

Contents

Nikon D70 Manual Manual pdf 85 page image

75Taking Photographs—ExposureMeteringIn P, S, A, and M modes, the metering mode determines how the camera setsexposure. The following options are available when a CPU lens is attached(metering is not performed when a non-CPU lens is used).Exposure Controlling How the Camera Sets ExposureCamera meters circle 2.3 mm (0.09˝) in diameter (approximately 1% offrame). Circle is centered on current focus area, making it possible tometer off-center subjects (if Closest subjct is selected for AF-area mode,camera will meter center focus area). Ensures that subject will be cor-rectly exposed, even when background is much brighter or darker.SpotCamera meters entire frame but assigns greatest weight to area in centerof frame 8 mm (0.31˝) in diameter, shown by corresponding 8-mm refer-ence circle in viewfinder. Classic meter for portraits; recommended whenusing fi lters with exposure factor (filter factor) over 1 × ( 191).Center-weightedDescriptionMethodMetering is performed by 1,005-pixel RGB sensor, which sets exposurebased on variety of information from all areas of frame. This method isparticularly effective where frame is dominated by bright (white or yel-low) or dark (black or dark green) colors, when its results approach whatis seen by human eyes. 3D color matrix metering, which uses range infor-mation from lens in adjusting exposure, is available only with type G or Dlenses. Color matrix metering, which does not include range information,is available with other CPU lenses. Matrix metering will not producedesired results with autoexposure lock ( 84) or exposure compensation( 86), but is recommended in most other cases.3D colormatrix/Colormatrix11—Center Wtd ( 145)This option controls the size of the area assigned the greatest weight in center-weighted metering.To choose a metering mode, press the but-ton and rotate the main command dial. Meteringmode is displayed in the control panel: