Flash (X) Synchronization - Canon A-1 Repair Manual

4. Check to see that all shutter speeds are within
tolerances.
2.4 Flash (X) Synchronization
1. Check shutter speed.
1) When using the 155A or the 199A in the automatic
shutter setting mode·, the shutter speed is
automatically set to 1/60 at all AV settings and
all TV settings except B.
2) When using the 199A in the manual shutter setting
mode· the shutter speeds will be:
A. AV mode: 1/60 sec.
B. TV mode:
With dial set between 1 / 1000 - 1/60 : 1/60 sec
With dial set between 1 / 30 - 30": Selected
speed
With dial at B: Bulb
3) Programmed Mode :
1/60 sec.
4) If the speedlites are not available, the kludge
(hand made test device) shown here may be used
to simulate them. Closing the switch simulated
the 199A's manual shutter setting mode.
': The 199A has a switch located on the top of the main
body under the flash head. This switch is marked"
"AUTO MANU 1 / 60 - 30S". In the AUTO mode the
camera is automatically switched to 1 / 60s, just as
the AE-l . In the MANU mode and with the camera in
TV mode, shutter speeds lower than 1/ 60 can be
selected to bring out dark backgrounds, etc.
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