Nikon Camera D7100 Users Manual

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Exposure
Choose how the camera sets exposure in P,  S,  A , and  M modes (in other modes, the 
camera selects the metering method automatically).
To choose a metering option, 
press the  Z (Q ) button and 
rotate the main command dial 
until the desired setting is 
displayed in the control panel.
Metering
OptionDescription
a Matrix
: Produces natural results in most situations.
 Camera meters a wide area of the 
frame and set exposure according to tone di stribution, color, composition, and, with...

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Autoexposure Lock
Use autoexposure lock to recompose photographs after using center-weighted 
metering and spot metering to meter exposure. Note that matrix metering will not 
produce the desired results.
1Lock exposure.
Position the subject in the selected focus point 
and press the shutter-release button halfway.
 
With the shutter-release button pressed halfway 
and the subject positioned in the focus point, 
press the  AAE-L/AF-L  button to lock exposure (if 
you are using autofocus, focus will...

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AMetered Area
In spot metering, exposure will be locked at the value metered in a 3.5-mm (0.14 in.) circle 
centered on the selected focus point. In cent er-weighted metering, exposure will be locked 
at the value metered in a 8-mm circle in the center of the viewfinder.
AAdjusting Shutter Speed and Aperture
While exposure lock is in effect, the following  settings can be adjusted without altering the 
metered value for exposure:
ModeSetting
P Shutter speed and aperture (flexible program;  048)
S...

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Exposure Compensation
Exposure compensation is used to alter exposure from the value suggested by the 
camera, making pictures brighter or darker.
 It is most effective when used with 
center-weighted or spot metering ( 083).
 Choose from values between –5 EV 
(underexposure) and +5 EV (overexposure) in increments of 1/3EV. In general, 
positive values make the subject brighter  while negative values make it darker.
To choose a value for exposure compensation, press the  E 
button and rotate the...

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AMode M
In mode  M, exposure compensation affects only the exposure indicator; shutter speed and 
aperture do not change.
AUsing a Flash
When a flash is used, exposure compensation affects both flash level and exposure, altering 
the brightness of both the main subject and the background. Custom Setting e4 ( Exposure 
comp. for flash , 0 250) can be used to restrict the effe cts of exposure compensation to the 
background only.
ASee Also
For information on choosing the size of the increments...

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White Balance
White balance ensures that colors are unaffected by the color of the light source. In 
modes other than  P,  S,  A , and  M, white balance is set automatically by the camera.
 
Auto white balance is recommended for most light sources in  P,  S , A , and  M modes, but 
other values can be selected if necessa ry according to the type of source:
White balance is set by pressing 
the  L (U ) button and rotating 
the main command dial until the 
desired setting is displayed in the...

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AThe Shooting Menu
White balance can also be adjusted using the  White balance 
option in the shooting menu ( 0224), which also ca n be used to 
fine-tune white balance ( 091) or measure a value for preset white 
balance ( 095).
 The  Auto  option in the  White balance  menu offers 
a choice of  Normal and Keep warm lighting colors , which 
preserves the warm colors produced by incandescent lighting, 
while the  IFluorescent  option can be used to select the light 
source from the bulb types....

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Fine-Tuning White Balance
White balance can be “fine-tuned” to compensate for variations in the color of the 
light source or to introduce a deliberate color cast into an image.
 White balance is 
fine-tuned using the  White balance option in the shooting menu or by pressing the 
L  (U ) button and rotating the sub-command dial.
❚❚The White Balance Menu
1Select a white balance option in the 
shooting menu.
To display the menus, press the  G button. 
Select  White balance  in the shooting menu, 
then...

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3Press J.
Press  J to save settings and return to the 
shooting menu.
 If white balance has been 
fine-tuned, an asterisk (“ E”) will be displayed 
in the control panel.
❚❚ The  L  (U ) Button
At settings other than  K (Choose color temp. ) and 
L  (Preset manual ), the L (U ) button can be 
used to fine-tune white balance on the amber (A)–
blue (B) axis ( 091; to fine-tune white balance when 
K  or  L  is selected, use the shooting menu as 
described on page 91).
 Six settings in both directions...