Built-In Flash - Canon EOS 55 Service Manual

Part 1: General Information
11
The film leader can be left outside the film cartridge.
If
the shutter is released while the camera back is open,
the shutter speed will always be 1 / 4000 sec. (This is to
protect the shutter curtains.)
6-13 Rewind completion: Indicated by the film cartridge symbol blinking at 2 Hz
on the LCD panel.
6-14Film-loaded check:
(I)
Indicated by the film cartridge symbol displayed on
6-15 Frame counter:
6-16 Transport noise:
7. Built-in Flash
7-1 Type:
7-2 Guide No.:
7 -3 Recycling time:
7 -4 Coverage:
7 -5 Extension:
the LCD panel.
(2) Confirmable with the film window on the camera
back.
Electronic, numeric counter on LCD panel. (Counts
down during film rewind.)
At 15cm from the camera back:
Film advance noise of 55dB or less Film rewind noise
of52dB or less (high speed) and 42dB (silent rewind).
Built-in, retractable TIL auto flash head in the pen-
taprism. Series-circuit controlled.
13 (m) (atlSO 100)
Approx. 2 sec.
Covers 28mm lenses.
By Flash button for pop-up only. Retract manually.
7-6 Activation: 1. In a Creative Zone mode, flash button fires flash man-
ually.
2. In the Full Auto, Portrait, and Close-up modes, the
flash pops up and fires automatically under low-light
or backlit conditions.
7-7 Aperture setting: (1) In the Program mode: Set automatically according to
the ITL program.
(2) In the aperture-priority AE and manual modes: Set
by the user.
(3) In the shutter speed-priority AE mode: Set automati-
cally to match the shutter speed.
7-8 Sync speed:
(I)
In the Program mode: Set automatically to 1/60 to
1/125 sec.
m
(2) In the aperture-priority AE mode: Set automatically
to 1/30 to 1/125 sec. to match the aperture value.
11
The sync speed can be fIXed at 1 / 125 sec.
(3) In the shutter speed-priority AE and manual modes:
A sync speed of 1/125 sec. or slower can be set (in
half steps) by the user.
*
During flash use, the metering mode (evaluative [no
alpha compensation), partial, or center-weighted
averaging) set with the camera operates as usual.
7-9 Exposure system: TIL off-the-film auto flash exposure (3-zone flash meter-
ing linked to focusing point)
7-10 Output control: Automatic flash output reduction for fill-in flash or
bright-light conditions.
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