How To Use Built-In Exposure Meter - Canon FT QL Instructions Manual

How to Use Built-In Exposure Meter
The exposure meter of the Canon FT QL which
is of the zero-method type, is coupled to the
shutter dial and aperture ring . The exact
exposure is easily determined according to the
brightness of the subject to be photographed .
There are two ways of determining the ex -
posure-either by first selecting the shutter
speed or by first selecting the f/ stop.
Film Speed Setting
Show the film speed of the film used in the
small window. To do this, hold up and turn
the film speed set ring around the shutter speed
dial. If the film is ASA 100, for example, make
correct setting by showing 100 in the window.
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ASA Film Speed Indicator
Window
DIN Film Speed Indicator
Window
Lift up the outer
film speed set ring
and turn .
it
When ASA 25 appears in the small window ,
this is as far as it turns to the left. The right
turn extremity ( • index) reads ASA 2000 .
it
The following film speeds may be used :
(32) (40) (64) (80) (125) (160 ) (250) (320) (500)
ASA 25 · · 50 · · 100 · - 200 · · 400 ·
DIN 15· ·18· · 21 · · 24 · · 27·
(16) (17) (19) (20) (22 ) (23) (25) (26) (28)
(640) (1000) (1250) (2000'
• 800 • • 1600 .
30 . . 33 .
(29) (31) (32) (34)
Figures in parentheses represent intermediate
film speeds .
it
The film speeds are shown either on the
film box cover or on the explanatory sheet.
CdS Actuating Lever
The exposure meter can be set into measuring
condition by turning the CdS actuating lever
towards the lens.
The CdS actuating lever can be fixed by turning
it towards the lens after setting the lock lever
at "L" position . If the lock lever is returned
to its original position ( ·index) the CdS actu-
ating lever will return to its original position .
it
With the fixing of the CdS actuating lever ,
interchangeable lenses with especially long
focal lengths can be conveniently used. Also
when shooting subjects with different light
intensities , continuous photometry is possible.
How to Measure the Average
Brightness
The exposure meter on the Canon FT QL is of
the spot reading type which accurately meas-
ures any special spot of the subject. Therefore,
when measuring a subject with greatly differing
dark and bright parts, take two measurements ,
one each of the dark and bright parts. Then
obtain the average value and set the f / stop or
shutter speed accordingly.
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