Canon C12-8453, Руководство по обслуживанию

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5. Exposure Control
5-1 Type: TTL max. aperture metering with a 35-zone silicon
photocell. The following three metering modes are
provided.
Selectable with metering mode button on the back.
(1) Evaluative:
(2) Partial metering at center
(Approx. 10% of viewfinder):
(Metering zones: S13, S14, S15, S24, S34)
* C.Fn-8-1 enables partial metering to be linked to the active focusing
point.
(3) Centerweighted averaging metering:
(Metering zones: S12 to S16, S22 to S26, S32 to S36,
S42 to S46, S52 to S56)
* In Full Auto and PIC modes: 1. Automatically set (Modes 2 and 3 not
selectable.)
* In Creative Zone modes, modes 1, 2, and 3 are selectable.
5-2 AE modes: The following AE modes and manual mode provided.
1. Intelligent program AE (Shiftable)
2. Shutter speed-priority AE (No safety shift)
3. Aperture-priority AE (No safety shift)
4. Depth-of-field AE (DEP/Shiftable)
4-1 Manual selection: Two DEP points set with the selected focusing
point.
4-2 Automatic selection: Two DEP points set with the center focusing
point.
4-3 Eye Control: Two DEP points set with the focusing point selected
with the eye two separate times. (With evaluative or focusing
point-linked partial metering, the area to weight the exposure
can be set with the eye when the shutter button is pressed
halfway a third time.)
5. Full Auto (Intelligent Program AE/Not shiftable)
6. Programmed Image Control modes (5)
Portrait, Landscape, Closeup, Sports, Night Scene
7. Metered manual
8. E-TTL program flash AE
9. A-TTL program flash AE
10. TTL program flash AE
5-3 Metering range: EV 1-20 (at 20ºC with 50mm f/1.4 lens, ISO 100)
5-4 Insufficient exposure LCD digital display blinks at 2 Hz on LCD panel and in
warning: the viewfinder.
5-5 Exposure metering: Activated when shutter button is pressed halfway (SW-1).
* Metering continues to be active for 4 sec. after the shutter button’s
halfway position is released.
5-6 Film Speed Range: ISO 25-5000 with DX-coded film, set automatically in
1/3-stop increments.
* The ISO film speed is displayed on the LCD panel during the initial
film advance to frame 1.
Manual setting: ISO 6-6400 in 1/3-stop increments.
* With non-DX-coded film, the ISO film speed of the film previously
loaded is displayed during initial film advance to frame 1. The ISO
icon then blinks (which stops when the film speed is set manually) on
the LCD panel.
Part 1: General Information
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