Nikon 4799 - F 6 SLR Camera, Инструкция по эксплуатации, Страница: 63 / 192

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Detailed Operation
• When Spot Metering is selected, shifting the focus area also shifts Spot Metering to
the appropriate position. In Group Dynamic AF Mode ( x 52), center focus area
within the group is activated. However, Spot Metering area stays at the center (does
not shift) as long as Dynamic AF Mode with Closest Subject Priority (
x
53) is
activated, when a non-CPU lens ( x 39) is used or “Other screen” is selected in
Custom setting “b6: Screen comp.” (
x
98) (meter’s sensitivity area becomes 6mm-
dia. [approx. 3.3% of entire frame]).
Filters that require filter factor
Effect of Matrix Metering may not be fully attained when a filter that requires filter
factor (
x
169) is attached. In this case, Center-Weighted Metering is recommended.
CSM f3: Function of the FUNC button can be set to “Matrix metering”,
“Center-weighted” or “Spot metering”. When the FUNC button is pressed,
metering system can be temporarily switched to one designated (
x
108).
“
: Center-Weighted Metering
• Center-Weighted Metering places special emphasis
on brightness within the 12mm-diameter circle in
the viewfinder, so it is useful for basing exposure on
a specific area of the scene.
ˇ
: Spot Metering
• Nearly 100% of the meter’s sensitivity is
concentrated on the 4mm-dia. area (approx. 1.5%
of entire frame) within the selected focus area of
the viewfinder. Use Spot Metering to base the
exposure on a very small area within the frame, such
as with backlit subjects or high-contrast scenes.
CSM b4: The area of the Center-Weighted meter’s sensitivity can be changed
to 8mm-dia., 12mm-dia., 15mm-dia., 20mm-dia. circle or average of the entire
viewfinder (
x 98).
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