Light metering system, Exposure modes, Meter coupling range – Canon T 90 User Manual

Page 206: Film speed, Exposure compensation

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Light Metering System:

Through-the-lens

(TTL) full aperture metering for FD lenses,

using silicon photocell (SPC). Three

selectable metering patterns; center-
weighted average metering, partial area

metering, and spot area metering. When
using lenses or accessories without FD
signal pins, only stopped-down metering
may be used.

Exposure Modes:

1 Shutter-priority AE with selectable

safety shift function (ON/OFF possible)

2 Aperture-priority AE with selectable

safety shift function (ON/OFF possible)

3 Standard program AE

4 Variable-shift program AE (selectable

out of 7 programs)

5 Manual
6 Stopped-down AE
7 Stopped-down (fixed index) metering
8 Flash AE (possible with specified

Canon Speedlites)

Meter Coupling Range:

EV 0—20 (with ISO

100 film and a 50 mm f/1.4 lens)

Film Speed:

ISO 6-6400, (IS025-5000 is

automatically set by 1 /3 step according to

DX code standard) Also can be set manu

ally.

Exposure Compensation:

1 Exposure compensation index — ±2

steps by 1 /3 increment

1 2 0