Canon EOS DIGITAL REBEL XTI Service Manual page 38

11-12 Flash exposure
compensation:
11-13 Effective flash range:
11-14 Improper FE lock
warning:
11-15 Sufficient flash
indicator:
11-16 Flash-sync timing:
11-17 Flash duration:
11-18 Color temperature:
11-19 Optical axis space:
11-20 Power source:
11-21 Red-eye reduction:
1)Setting precondition: In Creative Zone modes
2) Compensation amount: Up to ±2 stops in 1/3- or 1/2-stop
increments
3)Cancellation: Set exposure level to 0
4)Up to ±2 stops in 1/3- or 1/2-stop increments.
⑴ Flash exposure compensation for built-in flash and
Speedlite can be set with the camera.
⑵ An icon indicates whether the flash exposure
compensation was set with the built-in flash or external
Speedlite.
ISO
WIDE: 18 mm
100 1 - 3.7 / 3.3 - 12.1
200 1 - 5.3 / 3.3 - 17.4
400 1 - 7.4 / 3.3 - 24.3
800 1 - 10.5 / 3.3 - 34.4
1600 1 - 14.9 / 3.3 - 48.9
＊ If the focusing distance is shorter than 1 meter / 3.3 feet and no hood is
attached to the lens, the flash will be partially obstructed by the lens barrel.
＊ If you use a high ISO speed, short focusing distance, and the maximum
aperture, overexposure may result.
＊ The maximum range is calculated by dividing the respective ISO speed's
nominal Guide No. by the f/number.
During FE lock, the flash icon blinks.
None
1st-curtain sync
・ With C.Fn-9-1 (Shutter curtain sync.), 2nd-curtain sync is
possible.
1 ms or shorter
Equivalent to daylight
Lens axis to flash center: 92.0 mm
Supplied by camera's power source
When the built-in flash pops up, the red-eye reduction lamp
lights and then the flash fires.
⑴Type: Illumination by lamp
⑵ Compatible modes: Operates in all modes except Landscape,
Sports, and Flash OFF.
⑶Setting method: With the menu's [Red-eye On/Off].
⑷ Conditions for illumination: Lights after focus is achieved
when the shutter button is pressed halfway (SW-1) in the
One-Shot AF mode.
(In the AI SERVO AF or MF mode, the red-eye reduction lamp lights
immediately at SW-1.)
33
General Information
EF-S18-55 mm f/3.5-5.6
TELE: 55 mm
1 - 2.3 / 3.3 - 7.5
1 - 3.3 / 3.3 - 10.8
1 - 4.6 / 3.3 - 15.1
1 - 6.6 / 3.3 - 21.7
1 - 9.3 / 3.3 - 30.5
（m/ft）