New 2.5-In. Tft Lcd Screen; Display-Off Sensor - Canon EOS White Paper

New, Highly-Legible
2.5-inch TFT LCD
Color Screen
New Display-off sensor
in lenses such as the EF 400mm f/2.8L IS USM or the EF 600mm f/4L IS USM. All over
the world, photographers depend on Canon IS to help them achieve the highest possi-
ble image quality.
At some point, in-body stabilization may improve to the point at which such technology
may be appropriate for certain segments of Canon's DSLR range. It would be senseless
to rule out such a possibility. Even now, differences in unit cost are not enough to be
significant factors in such a decision. The bottom line is performance.
A 2.5-in., 230,000-pixel, color TFT LCD
screen with a wide, 160° viewing angle is
a welcome new feature of the Digital Rebel
XTi. Compared to the Digital Rebel XT's
1.8-in. LCD screen, the display area is
about twice as large. Also, to improve the
menu's readability, the font size has been
greatly increased. The LCD screen illumination is provided by three LED backlight mod-
ules and the brightness adjustment range has been expanded by one level at both the
minimum and maximum levels to a total of 7 steps. During brightness adjustment, a
handy and elegant grey scale is displayed along with the image.
Thanks to a highly transparent LCD screen and a brilliant LED module, screen brightness
is about 40% higher than the maximum brightness of the screens found on the EOS-1D
Mark II N, EOS 5D, and 30D. This makes it easier to review images even in bright outdoor
conditions. At the darkest setting, the display is not uncom-
fortably bright, even in a dark place. The maximum bright-
ness setting changes the gamma characteristic of the
display to increase the midtones, making the
image look somewhat overexposed, and high-
light detail tends to be lost. Therefore, it is
important that when checking an image's
exposure and colors, the brightness level be
set to one of the middle five levels. Because
the Digital Rebel XTi displays the camera set-
tings at all times, users are recommended to set
the screen brightness to a suitable level which
would not be too bright in the dark.
When you put your eye on the eyepiece, a new display-off sensor (located below the
eyepiece) senses your face and turns off the LCD screen automatically. This is to save
battery power and prevent the screen's brightness from disturbing your eye while look-
ing through the viewfinder. The display-off sensor consists of an IRED emitter and light-
receiving sensor. When the IRED light reflecting off the face is detected by the light-
receiving sensor, the LCD screen turns off automatically. This display-off sensor can be
III. FEATURE DISCUSSION
Horizontal viewing angle
Vertical
viewing
80 40 40 80
angle
Digital Rebel XTi
Digital Rebel XT
2.5" LCD Screen
80
20
60
80
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