Canon TL - Page 14

2 Manually Operated Aperture: When the A·M ring is
set at "M ", the diaphragm closes down to any
desired f/ stop by turning the preset aperture ring a nd
the depth · of · field at the time of shutter release can be
checked. When the A·M ring is reset at "A" the dia ·
phragm agai)1 returns to maximum opening .
Lens with Manual Aperture Ring
1 Presetting of Aperture: Set the desired f/ stop on
the pre· set aperture ring to the inde x. Then set the
index of the manual aperture ring to this preset f/ stop.
The diaphragm will close down to the preset f/ stop onl y
for the instant that the shutter is released.
2 Manually Operated Aperture: When the manual aper ·
ture ring is turned in the direction of closing down
the diaphragm, after setting the desired f/ stop on the
preset aperture ring to the index , the diaphragm will
close down to the preset f/ stop and the depth·of · field
can be checked . The manual aperture ring cannot be
turned when set at the ma x imum f/ stop .
•
Refer to pages 32-33 concerning depth · of · field.
14
FL 50mm F 1.8
FL lOOmm F 3.5
Index
Preset
Aperture Ring
A·M Ring
Index
Preset
Aperture Ring
Manual
Aperture Ring