Canon FT - 14

ring to the index. The diaphragm will close down to the
pre·set f/ stop only for the instant that t he shutter is reo
leased. Except for that instant, the diaphragm remains
ful ly open.
2 Manually Operated A perture: When the A-M ring is
set at " M " , the diaphragm closes down to any
desired f/
stop by tu rning the pre·se t aperture ring and
the dep t h·of·field at the t i me of sh u tter release can be
checked. When the A·M ring is reset at "A " the dia-
phragm again returns to maximum opening.
Lens with Manual Aper t ure Ri ng
1 Pre-Setting of Aper t ure: Set the desired f/ stop on
t he
pre-set apert ure ring to the index . Then set t he
index of the manual aperture ring to t his pre - set f/ stop.
The diaphragm will close down to the pre-set f/ stop only
for the instant that the sh utter is re leased.
2 Manually Operated A perture: When the man ual aper-
ture r ing is turned in the direction of closing down
the diaphragm, after setting the desired f/ stop on the
pr e·set aperture ring to the index, the diaphragm will
close down to the pre-set f/ stop and the depth - of-field
can be checked. The manual aperture ring cannot be
turned when set at t he maximum f/ stop.
• Refer to pages 32-33 concerning depth-ot-field .
14
FL 50mm F 1.4
FL
85mm F 1.8
Index
Pre-Set
Aperture Ring
A·M Ring
Index
Pre-Set
Aperture Ring
Manual
Aperture Ring