Canon 155 A User Manual
Page 18
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HOW TO USE WITH THE CANON
AE-1 AND A-1
The Speedlite 155A can be used in three
ways.
I. AE flash photography with Canon
FD lenses.
II. Automatic flash photography with
Canon FL lenses.
III. Manual flash photography.
These three usages, though somewhat simi
lar, are explained separately below.
I. AE Flash Photography with Canon FD
Lenses_______________________________
Setting on the Cameras
With an A-1 or AE-1 plus FD lens combina
tion, the lens’ aperture ring should remain
on the “A” mark for AE flash photography.
With the lighting up of the pilot lamp,
the camera automatically switches over to
the flash circuit. The shutter speed and