Nikon D90 User Manual

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ISO Sensitivity Settings
Adjust ISO sensitivity (pg. 74). This option is available in all modes.
11/50 Sensitivity Auto Control (~ 5, and A Modes Only)
If Off (the default setting) is chosen for ISO sensitivity auto
control, ISO sensitivity will remain fixed at the value selected by
the user
(see page 74). When On is chosen, ISO sensitivity will
automatically be adjusted
if optimal exposure can not be
achieved at the value selected by the user (flash level
is
adjusted appropriately). The maximum value for auto ISO
sensitivity can be selected using the Maximum sensitivity
option in the ISO sensitivity auto control menu (choose lower
values
to prevent noise; the minimum value for auto ISO
sensitivity is automatically set to ISO 200). In exposure modes
Pand
A, sensitivity will only be adjusted if underexposure would
result at the shutter speed selected for
Minimum shutter
speed. Slower shutter speeds will be used only if optimum exposure can not be
achieved at the
ISO sensitivity value selected for Maximum sensitivity.
When On is selected, the control panel and viewfinder show
ISO-AUTO. These indictors blink when sensitivity is altered from
the value selected by the user.
5 F5.b
PI Auto ISO Sensitivity Control
Noise is more likely at higher sensitivities. Use the High ISO NR option in the shooting menu
to reduce noise (see page 168). Foreground subjects may be underexposed in photos taken
with the flash at slow shutter speeds, in daylight, or against a bright background. Choose a
flash
mode other than slow sync or select exposure mode Aor Mand choose a larger aperture.
Note
that when the flash is used, the camera uses the shutter speed selected for Custom
Setting e1
(Flash shutter speed, pg. 185) in place of the value selected for Minimum shutter
speed.
Active D-Lighting
This option can be used to prevent loss of detail in highlights and shadows (pg. 119).
The default setting
is Auto. This option is available in P, S, A, and Mmodes only.
166

Nikon D90 Specifications

General

Megapixel	12.3 MP
Camera type	SLR Camera Body
Sensor type	CMOS
Sensor format	DX
Image stabilizer	No
Total megapixels	12.9 MP
Image sensor size	- \
Image formats supported	JPG, RAW
Maximum image resolution	4288 x 2848 pixels
Image sensor size (W x H)	23.6 x 15.8 mm
Still image resolution(s)	4288 x 2848 3216 x 2136 2144 x 1424
Mounting type	Bayonet
Lens mount interface	Nikon F
Video recording	Yes
Video resolutions	320 x 216, 640 x 424, 1280 x 720 pixels
Motion JPEG frame rate	24 fps
Maximum video resolution	1280 x 720 pixels
Analog signal format system	NTSC
Display diagonal	3 \
Vari-angle LCD display	-
Display resolution (numeric)	920000 pixels
Magnification	0.94 x
Viewfinder type	Optical
Eye relief	19.5 mm
Scene modes	Close-up (macro), Night portrait, Portrait, Sports, Landscape (scenery)
Image editing	Trimming
Photo effects	Black&White, Neutral, Vivid
White balance	Auto, Cloudy, Flash, Fluorescent, Incandescent, Manual, Sunny
Playback modes	Zoom
Camera playback	Highlights, Movie, Single image, Slide show, Thumbnails
Self-timer delay	2, 5, 10, 20 s
Camera file system	DCF 2.0, DPOF, Exif 2.21
Product color	Black
Flash modes	High-speed synchronization
Flash sync-speed	1/200 s
Flash range (wide)	- m
Memory slots	1
Compatible memory cards	SD, SDHC
Light metering	Centre-weighted, Matrix, Spot
ISO sensitivity	100, 200, 3200, 6400
Light exposure modes	Aperture priority AE, Auto, Manual, Shutter priority AE
ISO sensitivity (max)	6400
ISO sensitivity (min)	100
Light exposure correction	±5EV (1/2; 1/3 EV step)
Auto Focus (AF) points	11
Auto focusing (AF) modes	Servo Auto Focus, Single Auto Focus
Camera shutter type	Electronic
Fastest camera shutter speed	1/4000 s
Slowest camera shutter speed	30 s
USB version	2.0
Power source type	Battery
Battery type	EN-EL3e
Battery life (CIPA standard)	850 shots

Weight and Dimensions

Depth	77 mm
Width	132 mm
Height	103 mm
Weight	620 g