Viewfinder; Exposure Control - Canon EOS DIGITAL REBEL XTI Service Manual

Technical Information
1.5 Viewfinder
The viewfinder optics (0.80x magnification, 95% coverage, 21 mm eyepoint, dioptric
adjustment range -3.0 to+ 1.0 dpt), focusing screen (Precision Matte), and viewfinder blackout
time (170 ms) are the same as the EOS KISS DIGITAL N's.
1 )
Superimposed display
The camera uses the same basic configuration as the EOS KISS DIGITAL N for its
superimposed display optics. The SI display is provided for all nine AF points.
1.6 Exposure control
1 ) Exposure metering
The camera uses the same evaluative metering and E-TTL
II algorithm as the EOS 30D with nine AF points. Three
metering modes are provided: Evaluative metering, partial
metering at cent er (approx. 9% of viewfinder area), and
center-weighted average metering.
2 ) Exposure control modes
As with the EOS KISS DIGITAL N. eleven AE modes and a
manual exposure mode are provided.
3) Shutter
The shutter unit has the same basic configuration* as the
EOS KISS DIGITAL N's shutter unit. For bulb exposures, the
maximum battery life with a fully-charged NB-2LH battery
is approx. 2 hours (When elapsed time is displayed, it is
approx. 1.5 hours.)
*To accommodate the Self Cleaning Sensor Unit space-wise, a very slight
design modification has been incorporated.
4)
ISO
speed
The ISO speed setting range (ISO 100-1600 in whole-stop
increments) and ISO Auto (Table 005) are the same as with
the EOS KISS DIGITAL N.
Table 005 Automatic ISO Speed Settings
No Flash
W/built-in W/external
flash Speed lite
D 100 -400 400 400
\\
100 400 400
~
100 -400
- 400
~ 100 -400
400 400
~
400
- 400
~ 100 -400 400 400
m
100 -400
- 400
11
Fig. 016 Metering sensor
Fig. 017 Metering zones
ISO speed
•I•!••
BOO
2.to 1800
.coo
Fig. 018 ISO speed setting
screen