Canon 199 A - Manual (Page 27)

2. Exposure Warning
1. Automatic Flash Photography
When the f/stop selected on the 199A is
larger than the maximum opening of
your lens, the maximum f/stop of your
lens will be displayed and will flash on and
off to give underexposure warning. In such
a case, select smaller f/stop on the 199A.
On the contrary, when the f/stop selected
on the 199A is smaller than f/16, e.g. f/22,
f/22 will flash on and off in the viewfinder.
But if your lens actually has minimum
f/stop of f/22, you may disregard the flash­
ing warning and still get properly exposed
pictures. If the minimum f^top of your
lens is f/16, choose a larger f/stop on
the199A.
2. Discrepancy between the Actual f/stop and
the f/stop Display in the Viewfinder.
The f/stop display sometimes differs by a
half stop. This is because the input value is
rounded to every half f/stop figures and
that does not affect proper- exposures. For
the same reason, flashing sometimes starts
even when the maximum f/stop of your
lens and the f/stop setting on the 199A
corresponds. You may disregard the
flashing warning and still get properly
exposed pictures. But check the f/stop
setting on the 199A anyway.
3. Manual Flash Control
Warnings are exactly the same as described
in the above paragraphs for the FD lenses.
Since the f/stop for the camera is to be
set manually by moving the aperture ring,
M for manual will get displayed in the
viewfinder.
For the FL lenses, viewfinder information
does not provide a complete reference
and the viewfinder displays should be
cancelled by using the display lever on the
top of the camera.
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