18
Part I
Using the Nikon D90
ISO/Thumbnail/Zoom Out button.
When the camera is in Shooting
mode, pressing this button allows
you to manually adjust the ISO sen-
sitivity. When using a Scene mode
in which the Auto ISO function is
set, using this option allows you to
override the Auto ISO setting. In
Playback mode, pressing this but-
ton allows you to go from full-
frame playback (or viewing the
whole image) to viewing thumb-
nails. You can view either four,
nine, or 72 thumbnails on a page.
Pressing this button a fourth time
shows a calendar view that displays
images taken on a specifi c day.
When you're zoomed into an image
during playback or Live View, this
button allows you to zoom out.
Quality (QUAL)/Zoom In button.
When in Shooting mode, press this
button and then rotate the Main
Command dial to change the
image quality and JPEG compres-
sion. You can choose from RAW,
fi ne, normal, or basic JPEG or RAW
+ fi ne, normal, or basic JPEG.
Rotating the Sub-command dial
allows you to choose the size of
your JPEG fi les: Large, Medium, or
Small. When reviewing your
images, you can press the Zoom In
button to get a closer look at the
details of your image. This is a
handy feature for checking the
sharpness and focus of your shot.
When zoomed in, use the Multi-
selector to navigate around within
the image. To view your other
images at the same zoom ratio, you
can rotate the Main Command dial.
To return to full-frame playback,
press the Zoom Out button.
Depending on how much you've
zoomed in, you may have to press
the Zoom Out button multiple
times.
Front of the camera
The front of the D90 (lens facing you) is
where you fi nd the buttons to quickly adjust
the fl ash settings, bracketing, and some
focusing options, and with certain lenses,
you fi nd some buttons that control focusing
and Vibration Reduction (VR).
Right front
Flash pop-up button/Flash mode
button/Flash Exposure
Compensation button. Press this
button to open and activate the
built-in Speedlight when in M, A, S,
or P mode. Rotate the Main
Command dial to change the Flash
mode, and rotate the Sub-
command dial to adjust the Flash
Exposure Compensation (FEC) but-
ton. When using Scene modes, this
button functions diff erently for dif-
ferent modes.
For more on Scene modes, see
Chapter 2.
Bracketing (BKT) button. This but-
ton allows you to activate exposure
bracketing. Pressing this button and
then rotating the Main Command
dial, you can set the number of
bracketed exposures. You can
bracket up to three frames. The
choices are 3 frames (metered,
over, under), –2 (metered, under),
and +2 (metered, over). Pressing
this button and then rotating the
Sub-command dial allows you to
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