Shutter Mechanism; Self-Timer - Canon A-1 Repair Manual

3 . 1
~h u t t er Mechanism
(1) Type
Dual roller type cloth focal plane shutter
(2) Speed
1) Scale on the AT dial
B, 30, 15,8,4 , 2,1,2,4,8,l5,30,60,125,250,500,1000
I I
I
I
Yellow White
(3) Shutter release button
o .Electromagnetic shutter release
Large-sized shutter button is concentric with the
AE mode selector.
(4) Synchronization contact
o X synchronization is at 1/ 60 sec.
o The accessory shoe on the top of the pentaprism
has a direct flash contact. On the front of the
camera body is a PC flash terminal, (JIS-B type).
With built-in electric shock preventive rim.
o The accessory shoe has an automatic flash control
contacts for automatically switching shutter speed
and aperture.
o When using ordinary flash units (other than
Speedlite 155A and 199A) , set the AE mode selector
to Tv and set the shu tter speed to 1/ 60 sec or
slower.
3 . 8 Self-Timer
(1) Type
Electronically controlled self-timer
(2)
Operation
o Set the self-timer lever either to "2" or to "10".
o Activated by the shutter release button.
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