114
Shutter Speed/Aperture for Each Exposure Mode in TTL Auto Flash
Camera’s exposure mode
Shutter speed
Aperture
Programmed Auto (
¡
)
1/250 sec. to 1/60 sec.
1)
Shutter-Priority Auto (
™
)
Manually set as desired from
Set lens to its minimum aperture. Aperture is automatically
1/250 sec. to 30 sec.
2)
controlled between f/2.8
3)
and lens minimum aperture
Aperture-Priority Auto (
£
)
1/250 sec. to 1/60 sec.
Manual (
¢
)
Manually set as desired from
Manually set as desired
1/250 sec. to 30 sec.
2)
1) With Slow Sync or Rear-Curtain Sync, the automatically controlled shutter speed
range extends down to 30 sec.
2) If you set the shutter speed at 1/500 sec. or faster, camera automatically shifts
to 1/250 sec. as soon as the Speedlight is turned on. The manually set shutter
speed indication blinks in the LCD panel, while the viewfinder shows
25o
.
With optional Speedlight (except for a Speedlight for F3) in TTL Auto Flash
mode, 1/300 TTL High-Speed Sync is possible with option available in Custom
Setting. See page 90.
3) Maximum available aperture depends on film speed in use. See chart below.
ISO film speed
25
50
100
200
400
800
1000
Maximum available aperture
f/2.8
f/3.3
f/4
f/4.8
f/5.6
f/6.7
f/7.1
Maximum available aperture for each film speed in Programmed Auto exposure mode
As film speed increases by one step, maximum available aperture is stopped down by 1/2 f/stop.
If you are using a lens with a maximum aperture smaller than listed above, the entire aperture
range will be automatically controlled.
P400 (E) 02.12.27 6:42 PM Page 114
