✦ Shutter release. Partially depress
this button to lock exposure and
focus settings. Press the button all
the way down to take the picture.
Tapping the shutter release when
the camera has turned off the auto
exposure and autofocus mecha-
nisms to conserve battery power
reactivates both. When a review
image appears on the LCD, tapping
this button removes the image
from the display and reactivates
the auto exposure and autofocus
mechanisms.
✦ Infrared receiver. This dark red
window receives an infrared signal
from the optional ML-L3 remote
control. Note that the receiver’s
position on the front panel of the
D40/D40x means that you can’t
easily use it when standing behind
the camera. You need to move to
one side, stand in front of the cam-
era, or reach over the camera to
activate it.
✦ On-Off switch. Rotate this switch
one notch to turn the camera on.
✦ Memory card door. Slide this
door towards the back of the cam-
era to reveal the camera’s Secure
Digital (SD) memory card.
Chapter 1 ✦ Exploring the Nikon D40/D40x 17
On-Off switch
Autofocus assist illuminator/
self-timer lamp/red-eye reduction lamp
Shutter release
Infrared sensor
Handgrip
Memory card door
1.2 The right front side of the Nikon D40/D40x
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