Nikon Camera D610 Users Manual

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ISO Sensitivity
“ISO sensitivity” is the digital equivalent of film speed. Choose from settings that 
range from ISO 100 to ISO 6400 in steps equivalent to 1/3 EV. Settings of from about 
0.3 to 1 EV below ISO 100 and 0.3 to 2 EV above ISO 6400 are also available for special 
situations.
 Auto and scene modes also offer an  AUTO option, which allows the camera 
to set ISO sensitivity automatically in response to lighting conditions.
 The higher the 
ISO sensitivity, the less light needed to make...

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AAUTO
If the mode dial is rotated to  P,  S,  A , or  M after  AUTO is selected for ISO sensitivity in another 
mode, the ISO sensitivity last selected in  P,  S,  A , or  M mode will be restored.
AHi 0.3–Hi 2
The settings  Hi 0.3 through  Hi 2 correspond to ISO sensitivities 0.3–2 EV over ISO 6400 (ISO 
8000–25600 equivalent).
 Pictures taken at these settings are more likely to be subject to 
noise (randomly-spaced bright pixels, fog, or lines).
ALo 0.3–Lo 1
The settings  Lo 0.3 through  Lo 1...

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Auto ISO Sensitivity Control
If On  is selected for  ISO sensitivity settings > Auto ISO sensitivity control  in the 
shooting menu, ISO sensitivity will automatica lly be adjusted if optimal exposure can 
not be achieved at the value selected by  the user (ISO sensitivity is adjusted 
appropriately when the flash is used).
1Select  Auto ISO sensitivity control  for 
ISO sensitivity settings  in the shooting 
menu.
To display the menus, press the  G button. 
Select  ISO sensitivity settings  in the...

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When On is selected, the viewfinder and 
control panel show  ISO-AUTO.
 When 
sensitivity is altered from the value 
selected by the user, these indicators 
flash and the altered value is shown in 
viewfinder.
AAuto ISO Sensitivity Control
Noise (randomly-spaced bright pixels, fog, or li nes) is more likely at higher sensitivities.
 Use 
the  High ISO NR  option in the shooting menu to reduce noise (see page 218).
 When a flash 
is used, the value selected for  Minimum shutter speed is ignored in...

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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 viewfinder and 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 dist ribution, color,...

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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 focus and 
exposure (if you are using autofocus,...

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AMetered Area
In spot metering, exposure will be locked at  the value metered in a 4-mm (0.16 in.) circle 
centered on the selected focus point. In center-weighted metering, exposure will be locked 
at the value metered in a 12-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;  075)
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 ( 0109).
 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 , 0 240) 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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