Nikon Camera D810 Users Manual

							127
Aperture (exposure modes g and  h): Press the selected button and 
rotate the sub-command dial until  F icons appear in the 
viewfinder and the control panel.
To unlock aperture, press the button and rotate the sub-
command dial until the  F icons disappear from the displays.
Fn  button Sub-command
dial
ASee Also
Use Custom Setting f7 ( Shutter spd & aperture lock ; 0 350) to keep 
shutter speed and/or aperture lo cked at the selected values. 
						

							128
Use autoexposure lock to recompose photographs after using 
center-weighted metering and spot metering (0114) to meter 
exposure.
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, confirm that the 
in-focus indicator ( I) appears in the 
viewfinder).
While exposure lock is in effect, an 
AE-L  indicator will appear in the 
viewfinder.
2Recompose the 
photograph.
Keeping the  AAE-L/AF-L  
button pressed, 
recompose the 
photograph and shoot.
Autoexposure (AE) Lock
Shutter-release button
A AE-L/AF-L  button 
						

							129
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:
Exposure modeSetting
eShutter speed and aperture (flexible program;  0118)
fShutter speed
gAperture
The new values can be confirmed in the viewfinder and control panel. Note that the metering can not be changed while exposure lock is in 
effect.
ASee Also
If  On  is selected for Custom Setting c1 ( Shutter-release button AE-L, 
0 319), exposure will lock when the  shutter-release button is pressed 
halfway.
 For information on changing the role of the  AAE-L/AF-L  
button, see Custom Setting f6 ( Assign AE-L/AF-L button, 0 349). 
						

							130
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 ( 0114).
 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.
Exposure Compensation
–1 EV No exposure 
compensation +1 EV 
						

							131
To choose a value for exposure 
compensation, press the E button and 
rotate the main command dial until the 
desired value is displayed in the control 
panel or viewfinder.
At values other than ±0.0, the 0 at the 
center of the exposure indicators will 
flash (exposure modes  e, f , and  g only) 
and a  E icon will be displayed in the 
viewfinder and control panel after you 
release the  E button.
 The current value 
for exposure compensation can be 
confirmed in the exposure indicator by pressing the  E button.
Normal exposure can be restored by setting exposure 
compensation to ±0.0.
 Exposure compensation is not reset 
when the camera is turned off.
±0 EV 
( E  button pressed) –0.3 (–1/3)EV +2.0EVE
 button
Main command dial 
						

							132
AExposure Mode h
In exposure mode  h, exposure compensation affects only the 
exposure indicator; shutter speed and aperture do not change.
ASee Also
For information on choosing the size of the increments available for 
exposure compensation, see Custom Setting b3 ( Exp./flash comp. 
step value , 0 315).
 For information on making adjustments to 
exposure compensation without pressing the  E button, see Custom 
Setting b4 ( Easy exposure compensation , 0 316).
 For information 
on restricting the effects of exposu re compensation to the background 
when using a flash for foreground lighting, see Custom Setting e4 
( Exposure comp. for flash , 0 338).
 For information on automatically 
varying exposure, flash level, white balance, or Active D-Lighting, see 
page 133. 
						

							133
Bracketing automatically varies exposure, flash level, Active 
D -L ighting (ADL), or white balance slightly with each shot, 
“bracketing” the current value.
 Choose in situations in which it is 
difficult to set exposure, flash level (i-TTL and, where supported, 
auto aperture flash control modes only; see pages 194, 331, and 
430), white balance, or Active D-Lighting and there is not time to 
check results and adjust settings with each shot, or to 
experiment with different settings for the same subject.
❚❚ Exposure and Flash Bracketing
Vary exposure and/or flash level over a series of photographs.
1Select flash or exposure bracketing.
Select Custom Setting e6 ( Auto 
bracketing set ) in the Custom 
Settings menu, highlight an option, 
and press  J.
 Choose  AE & flash  to 
vary both exposure and flash level, 
AE only  to vary only exposure, or 
Flash only  to vary only flash level.
Bracketing
Exposure modified by: 
0 EV Exposure modified by: 
–1 EV Exposure modified by: 
+1 EV 
						

							134
2Choose the number of shots.
Pressing the D button, rotate the main command dial to 
choose the number of shots in the bracketing sequence.
 The 
number of shots is shown in the control panel.
At settings other than zero, a  M 
icon and exposure and flash 
bracketing indicator will appear in 
the control panel and  D will be displayed in the viewfinder.
Number of shots
Control panel Exposure and flash
bracketing indicator
Main command 
dial
D
 button 
						

							135
3Select an exposure increment.
Pressing the D button, rotate the sub-command dial to 
choose the exposure increment.
At default settings, the size of  the increment can be chosen 
from 0.3 (
1/3), 0.7 (2/3), 1, 2, and 3 EV. The bracketing programs 
with an increment of 0.3 (1/3) EV are listed below.
Note that for exposure increments of 2 EV or more, the 
maximum number of shots is 5; if a higher value was selected 
in Step 2, the number of shots will automatically be set to 5.
Control panel displayNo. of  shotsBracketing order (EVs)
00
3 0/+0.3/+0.7
3 0/–0.7/–0.3
20/+0.3
20/–0.3
30/–0.3/+0.3
5 0/–0.7/–0.3/+0.3/+0.7
7 0/–1.0/–0.7/–0.3/+0.3/+0.7/+1.0
9 0/–1.3/–1.0/–0.7/–0.3/+0.3/
+0.7/+1.0/+1.3
Exposure increment
Control panel
Sub-command
dial
D
 button 
						

							136
4Frame a photograph, focus, and shoot.
The camera will vary exposure and/or flash level 
shot-by-shot according to the bracketing 
program selected.
 Modifications to exposure are 
added to those made with exposure compensation (see page 
130).
While bracketing is in effect, a bracketing progress indicator 
will be displayed in the control panel.
 A segment will 
disappear from the indicator after each shot.
No. shots: 3; increment: 0.7 Display after first shot
ASee Also
For information on choosing the size  of the exposure increment, see 
Custom Setting b2 ( EV steps for exposure cntrl , 0 315).
 For 
information on choosing the order in  which bracketing is performed, 
see Custom Setting e8 ( Bracketing order, 0 340).
 For information on 
choosing the role of the  D button, see Custom Setting f8 ( Assign 
BKT button , 0 350).