Canon A-1 Instructions Manual page 78

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field looking at the image through the
viewfinder by pushing in the stop-down lever
just as in stopped-down AE photography
and setting the lens to the working aperture.
This will probably be one of those occasions
Small Aperture
when you will release the stop-down lever
and return the lens to "A" before taking a
shot. You will have to operate the multiple
exposure lever as explained earlier before the
camera will properly operate. See
WARNINGS OF INCORRECT OPER-
ATION IN STOPPED-DOWN PHOTO-
GRAPHY, p. 64.
Large Aperture
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