Canon 166 A User Manual
Page 42
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matic flash circuit is cut off, and both flash
and camera are switched to regular syn
chronized flash photography. In this mode,
the shutter speed of each A-series camera
is still switched automatically to the X-syn-
chronization speed of 1/60 sec. and the
shutter speed of the New F-1 to 1/90 sec.
(unless the shutter speed is set on “B”)
when the pilot lamp glows The aperture,
however,
must
be
calculated
for
each
change
in
shooting
distance
using
the
guide
number
formula,
and
then
set
manually on the lens' aperture ring The
procedure for manual flash photography is
as follows:
1
Set the 166A's Aperture/MANU selec
tion
switch
to
the
lowest
position.
"MANU"
will
appear
in
the
Aper
ture/MANU window
2
Make sure that the proper ASA film
speed is set on the flash.