Canon 166 A User Manual
Page 47
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within
the
auto
shooting
distance
range, exposure will be correct
In the case of manual flash photogra
phy, the procedure for calculating ap
erture
value
using
the
guide
number
formula
is
the
same
as
for
manual
flash
with
A-series
cameras
or
New
F-1 (see p 25)
When the 166A is used on a lens-shut
ter camera with built-in flash automa
tion (such as the Canonet G-lll 17), the
166A's
Aperture/MANU
selection
switch
must be set to the lowest position so
that ‘'MANU'' appears in the Aperture/
MANU
window
Follow
the
camera’s
instructions for setting the camera
(^The Speedlite 166A cannot be used as\
a multiple flash
A slave unit cannot be used with the
166A
27