Coupling Range Of Built-In Exposure Meter - Canon F-1 Instructions Manual

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Film
Speed
1 1
1 1
ASA 25 1
2 4
8 15
1 1 1 1 1
ASA 50
2 4 8 15 30
1 1 1 1 1
ASA 100
4 8 15 30 60
1 1 1 1 1
ASA 200
8 15 30 60 125
1 1 1 1 1
ASA 400
15 30 60 125 250
1 1 1 1 1
ASA 800
30 60 125 250 500
1 1 1 1 1
ASA
1600
60 125 250 500 1000
ASA 1 1 1 1 1
3200
125 250 500 1000 2000
Minimum
f/22 f/22 f/22 f/22 f/22
f/stop
Shutter Speed
1 1 1 1 1 1
30 60 125 250 500 1000
1 1 1 1 1 1
60 125 250 500 1000 2000
1 1 1 1 1
...
125 250 500 1000 2000
1 1 1 1
... ...
250 500 1000 2000
1 1 1
... ... ...
500 1000 2000
1 1
... ... ... ...
1000 2000
1
... ... ... ... ...
2000
... ... ... ... ... ...
f/22 f/22 f/22 f/16 f/11 f/8
To reset the camera for full-aperture metering with an
FD lens, push
white dot. The
automatically to its upright position.
How to "Average" Exposures
When measuring
different light intensities,
one each of the darkest and lightest parts, and obtain
1
the average value for the two readings. Then, set the
2000
f/stop or shutter speed at this average value.
...
Coupling Range of Built Coupling Range of Built Coupling Range of Built Coupling Range of Built- - - - in Exposure Meter
...
...
At given film speeds,
couples within the
...
indicated in the chart at the left. For example, when
using the Canon
...
100, the exposure
range of EV 3, f/1.4 at 1/4 of a sec. (the first num-
...
ber as read off the row labelled "ASA 100") to EV
18, f/11 (read off the bottom row) at 1/2000 of a
...
sec. (again read off the "ASA 100" row, but this
f/5.6
time read the last number). Thusly the first number
of a row indicates the longest shutter speed possible
at a given film speed with the aperture fully open
while the last
speed possible with the f/stop used being read from
the bottom row
fastest
the multi-purpose lever lock
multi-purpose lever will spring back
a subject influenced
take two
in Exposure Meter in Exposure Meter in Exposure Meter
the built-in
f/stops and shutter
FD 50mm f/1.4
meter couples
number denotes the
as the number directly under
shutter
to the
by greatly
measurements,
exposure meter
speeds as
lens at ASA
fully within the
fastest shutter
the
speed.
35