Double Exposure - Canon FT QL Instructions Manual

Fixing Mirror Upwards
In case the Canon Lens FL 19mm F 3.5 is used ,
the mirror should be fixed upwards.
For mounting the lens , turn the mirror lock
lever in the direction of the arrow . The mirror
is thus fixed to a po sition under the focusing
glass . The lens is then attached and used
with the mirror in the fixed -up position.
• Attach the lens quickly in the shade . The
film will sometimes become foggy if the lens
is left unattached.
• Wh en the mirror is locked , combined usage
of the separate viewfinder for this lens becomes
necessary .
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Do not use the mirror lock for ordinary photog -
raphy with the automatic aperture.
When its use becomes necessary , however ,
release the pre -set aperture and take the pic-
tures under "manual" conditions .
• When the mirror is locked, always keep the
lens covered when not in use . If it is turned
in the direction of the sun without the cap,
there is the danger of the diaphragm of the
shutter being burned .
• After the mirror lock device has been used ,
be sure to return the mirror lock lever com-
pletely to its original position . Failure to do
this will result in inexact focusing.
Double Exposure
Under ordinary usage , there is no danger of
double exposure. However, double exposure
can be made by the following steps :
1 When the first exposure has been made ,
press the rewinding button .
2
Rewind the film with the rewinding crank
by watching the mark on the rewinding
button carefully .
3 Stop rewinding when the mark ha s made
3/ 4 turning , i.e. , 270 °. Be sure not to
ex ceed one turn of the rewinding button.
4
Next, wind the film advance lever while
lightly holding the rewinding crank.
When resistance is felt on the rewinding crank,
stop the winding.
5 Wind the film advance lever once more.
By repeating the above process , it is
possible to make any number of exposures on
the same film plane . The film counter will ,
however , continue to advance with each ex -
posure.
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