Focal plane mark. The mark indi-
cates the equivalent of the fi lm
plane and is useful in macro pho-
tography when you need to know
the exact distance from the front
of the image sensor plane to the
subject.
LCD Panel Illumination button.
This button is tucked to the far left
of the buttons above the LCD
panel. Pushing the LCD Panel
Illumination button turns on an
amber light to illuminate the LCD
panel for approximately 6 seconds.
This is a handy option for making
LCD panel adjustments in lowlight
or in the dark.
Main dial. The Main dial selects a
variety of options. Turn the Main
dial to change fi rst named option
on the dual-function buttons, cycle
through camera Menu tabs, cycle
through autofocus (AF) points
when selecting an AF point manu-
ally, set the aperture in Av and C
modes, set the shutter speed in Tv
and Manual (M) modes, and shift
the exposure in Program (P) mode.
Although the features are discussed
with the dials, you can check out
Table 1.1 for a quick reference for
using the Main dial and Quick
Control dial with the LCD Panel
buttons.
Metering mode/White Balance
button. Press this button to change
the Metering mode and/or the
White Balance settings. To change
the Metering mode, turn the Main
dial, or to change the White
Balance, turn the Quick Control
dial. The options for each are as
follows:
Chapter 1
Roadmap to the EOS 50D
•
Metering modes. The choices
include Evaluative (35-zone TTL
full-aperture metering), Partial
(9 percent at center frame),
Spot (3.8 percent at center
frame), and Center-weighted
Average.
•
White Balance. Choices include
Auto (3000-7000 degrees
Kelvin (K)), Daylight (5200 K),
Shade (7000 K), Cloudy (6000
K), Tungsten (3200 K), White
Fluorescent (4000 K), Flash
(6000 K), Custom (2000-10000
K), and K (Kelvin Temperature,
2500-10000 K).
AF mode/Drive mode button.
Pressing this button enables you
to change the Autofocus mode
using the Main dial, or to change
the Drive mode using the the Quick
Control dial. The options for each
are listed here:
•
AF modes. The choices are
One-shot AF, AI Focus AF, and
AI Servo AF.
•
Drive modes. The Drive modes
you can choose from are Single-
shot, High-speed Continuous
(6.3 frames per second, or fps),
Low-speed Continuous (3 fps),
and Self-timer (10- and 2-sec.
delays).
ISO/Flash Exposure
Compensation button. Pressing
this button enables you to change
the ISO sensitivity setting using the
Main dial or the Flash Exposure
Compensation using the Quick
Control dial. The options for each
are as follows:
9
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