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