Canon 155 A User Manual
Page 5
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Specifications -
Type: Electronic computer flash unit with a
series control system.
Contact: Clip-on type with a directly coup
led contact. With lock mechanism.
Guide Number: 17m or 55ft. (ASA 100).
The guide number is obtained 30
seconds after the pilot lamp lights
up when new batteries are loaded.
Flash Coverage Angle: Adequately covers
angle of view of any lens with a focal
length of at least 35mm on a 35 mm
camera. \
Flashing Intervals: (Interval between firing of
flash and relighting of pilot lamp
when using new batteries.)
Alkaline-maganese batteries: About
7 seconds.
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