Nikon D5100 User Manual

155
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Adjust ISO sensitivity (0 54).
❚❚ Auto ISO sensitivity control
If Off is chosen for Auto ISO sensitivity control in P, S, A, and M
modes, ISO sensitivity will remain fixed at the value selected by
the user (0 54).
When On is chosen, ISO sensitivity will
automatically 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).
The maximum
value for auto ISO sensitivity can be selected using the Maximum sensitivity option
in the Auto ISO sensitivity control menu (choose lower values to prevent noise
(randomly-spaced bright pixels, fog, or lines); the minimum value for auto ISO
sensitivity is automatically set to ISO 100).
In modes P and A, sensitivity will only be
adjusted if underexposure would result at the shutter speed selected for Minimum
shutter speed (
1
/2000–1 s; in modes S and M, sensitivity will be adjusted for optimal
exposure at the shutter speed selected by the user).
Slower shutter speeds will be
used only if optimum exposure can not be achieved at the ISO sensitivity value
selected for Maximum sensitivity.
If the ISO sensitivity selected by the user is higher
than the value selected for Maximum sensitivity, the value selected for Maximum
sensitivity will be used instead.
When On is selected, the viewfinder shows ISO-AUTO and the
information display ISO-A.
These indictors blink when sensitivity
is altered from the value selected by the user.
ISO Sensitivity Settings
G button ➜ C shooting menu
A Auto ISO Sensitivity Control
Noise (randomly-spaced bright pixels, fog, or lines) is more likely at higher sensitivities.
Use
the High ISO NR option in the shooting menu to reduce noise (0 154).
Note that ISO
sensitivity may be raised automatically when auto ISO sensitivity control is used in
combination with slow sync flash modes (available with the built-in flash and optional
SB-900, SB-800, SB-700, SB-600, and SB-400 flash units, possibly preventing the camera from
selecting slow shutter speeds.

Nikon D5100 Specifications

General

Megapixel	16.2 MP
Camera type	SLR Camera Body
Sensor type	CMOS
Image stabilizer	Yes
Total megapixels	16.9 MP
Image sensor size	- \
Image formats supported	JPG
Maximum image resolution	4928 x 3264 pixels
Still image resolution(s)	640 x 424, 1280 x 720, 1920 x 1080
Optical zoom	- x
Focal length range	- mm
Aperture range (F-F)	-
Camera shutter speed	1 - 1/4000 s
Focus adjustment	Auto
ISO sensitivity	100, 125, 160, 200, 250, 320, 400, 500, 640, 800, 1000, 1250, 1600, 2000, 2250, 3200, 6400
Flash modes	Auto, Red-eye reduction, Slow synchronization
Scene modes	Beach, Candlelight, Dawn, Dusk, Night, Night landscape, Night portrait, Party (indoor), Portrait, Snow, Sports, Sunset, Landscape (scenery)
White balance	Auto, Cloudy, Fluorescent, Incandescent, Shade
Self-timer delay	2, 5, 10, 20 s
Maximum video resolution	1920 x 1080 pixels
Internal memory	- MB
Compatible memory cards	SD, SDHC, SDXC
Display diagonal	3 \
Display resolution (numeric)	921000 pixels
USB version	2.0
Product color	Black
Operating temperature (T-T)	0 - 40 °C
Operating relative humidity (H-H)	0 - 85 %

Weight and Dimensions

Depth	79 mm
Width	128 mm
Height	97 mm
Weight	560 g