Nikon Camera D7100 Users Manual

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AF-Area Mode
Choose how the focus point for autofocus is selected.
•Single-point AF : Select the focus point as described  on page 75; the camera will focus 
on the subject in the selected focus point only.
 Use with stationary subjects.
• Dynamic-area AF : Select the focus point  as described on page 75.
 In AF-A  and  AF-C 
focus modes, the camera will focus base d on information from surrounding focus 
points if the subject briefly leaves the selected point.
 The number of focus points 
varies...

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AF-area mode can be selected by pressing 
the AF-mode button and rotating the sub-
command dial until the desired setting is 
displayed in the viewfinder or control panel.
A3D-tracking
When the shutter-release button is pressed half way, the colors in the area surrounding the 
focus point are stored in the camera.
 Consequently 3D-tracking may not produce the 
desired results with subjects that are the same  color as the background or that occupy a very 
small area of the frame.
AAF-Area Mode...

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Focus Point Selection
The camera offers a choice of 51 focus points that can be used to compose 
photographs with the main subject positioned almost anywhere in the frame.
1Rotate the focus selector lock to ●.
This allows the multi selector to be used to select 
the focus point.
2Select the focus point.
Use the multi selector to select the focus point in 
the viewfinder while the exposure meters are on.
 
Press  J to select the center focus point.
The focus selector lock can be rotated to the...

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Focus Lock
Focus lock can be used to change the composition after focusing, making it possible 
to focus on a subject that will not be in a focus point in the final composition.
 If the 
camera is unable to focus using autofocus ( 072), focus lock can also be used to 
recompose the photograph after focusing on another object at the same distance as 
your original subject.
 Focus lock is most effective when an option other than auto-
area AF is selected for AF-area mode ( 073).
1Focus.
Position the...

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ALocking Focus with the AF-ON Button
If desired, the autofocus can be assigned to a separate button in the Custom Settings menu, 
in which case focus will lock when the button is pressed and remain locked until the button 
is pressed again.
 The shutter can be released at any time  regardless of the options selected 
for Custom Settings a1 ( AF-C priority selection , 0 231) and a2 ( AF-S priority selection , 
0 231), and the in-focus indicator ( I) will not be displayed in the viewfinder.
ASee Also...

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Manual Focus
Manual focus is available for lenses that do not support autofocus (non-AF NIKKOR 
lenses) or when the autofocus does not produce the desired results (072).
• AF-S lenses : Set the lens focus mode switch to  M.
• Other AF lenses : Set the lens focus mode switch (if 
present) and camera focus-mode selector to  M.
• Manual focus lenses : Set the camera focus-mode 
selector to  M.
To focus manually, adjust the lens focus ring until the 
image displayed on the clear matte field in the...

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S
ISO Sensitivity
The higher the ISO sensitivity, the less light needed to make an exposure, allowing 
higher shutter speeds  or smaller apertures.
 Choosing Auto allows the camera to set 
ISO sensitivity automatically in response to lighting conditions.
 The following 
options are available:
ISO sensitivity can be adjusted by 
pressing the  W (S ) button and 
rotating the main command dial until 
the desired setting is displayed in the 
control panel or viewfinder.
ModeISO sensitivity
% Auto
P ,...

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AViewing ISO Sensitivity in the Information Display
ISO sensitivity is shown in the information display. When  Auto is 
selected,  ISO AUTO and the sensitivity chosen by the camera is 
displayed as shown at right.
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...

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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.
ATurning Auto ISO Sensitivity Control On or Off
You can turn auto ISO sensitivity control on or off by 
pressing the  W (S )  button and rotating the sub-
command dial.
 ISO-AUTO  is displayed when auto ISO 
sensitivity control is on.
AAuto ISO Sensitivity Control
Noise (randomly-spaced bright pixels, fog, or li nes) is more likely at...