Nikon 25464 D300S User's Manual - Page 128
Metering
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Metering Metering determines how the camera sets exposure. The following options are available: Method Description a 3D color matrix II Recommended in most situations. Camera meters a wide area of the frame and sets exposure according to distribution of brightness, color, distance, and composition for natural results. Camera meters entire frame but assigns greatest weight to 8-mm Z circle in center of viewfinder (if CPU lens is attached, area can be selected Center- using Custom Setting b5, Center- weighted weighted area, 0 272). Classic meter for portraits. 1 Center-weighted area 2 Camera meters circle 3 mm (0.12 in.) in diameter (approximately 2% of frame). Circle is centered on current focus point, making it possible to Z b meter off-center subjects (if non-CPU Spot lens is used or if Auto-area AF is in effect (0 76), camera will meter center focus point). Ensures that Spot metering area 2 subject will be correctly exposed, even when background is much brighter or darker. 1 1 For improved precision with non-CPU lenses, specify lens focal length and maximum aperture in Non-CPU lens data menu (0 196). 2 Metered area is not actually displayed in viewfinder. 102