V1.02
Thom Hogan’s Complete Guide to the Nikon D300
Page 430
• You set the shooting method to Live View via the Shooting
Method dial on the top of the camera.
• You
choose
the
Live view mode
via the
Live view
option on the SHOOTING menu. The camera allows both
Hand-held
and
Tripod
settings, which I’ll get to in detail
in a bit.
• Since you can’t set the Shooting Method dial to anything
else when you’re using Live View, you set the
Release
mode
via the
Live view
option on the SHOOTING
menu. This restores the ability to set
Single frame
(
S
),
Continuous low-speed
(
CL
), and
Continuous high-
speed
(
CH
), but not Self Timer or
M
UP
.
I mentioned two primary Live View “modes,” so let’s examine
them for a moment:
•
Hand-held
. The camera uses its usual phase detection
autofocus system. This presents a problem. Since the
autofocus system requires that the mirror be down to
focus and Live View requires the mirror to be up to get
light to the sensor so that you can see a preview image,
Nikon has used a trick to resolve this difference. I call this
mode the three-press method: press the shutter release
once to raise the mirror and start the Live View, partially
press the shutter release a second time to lower the mirror
for a focus and exposure test, press it again to take your
picture (there’s much more to it than that, but we’ll get to
that in the in-use descriptions that come later in this
section).
•
Tripod
. The camera uses a contrast detection autofocus
system similar to what Coolpix and other compact
cameras use. While this doesn’t require the mirror to drop
to acquire focus, using the main imaging sensor for focus
is slower than phase detection. This can be a two-button
process: press the shutter release to invoke the Live View
mode, and press it a second time to take a picture (again,
there’s more to it than that, but we’ll get to the details in a
bit).