Using The Built-In Exposure Meter - Canon F-1 Instructions Manual

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Using the Built- - - - in Exposure Meter Using the Built Using the Built Using the Built
The Canon F-1 provides the most accurate light measure-
ment possible with its unique TTL (Through-The-Lens)
system. The built-in exposure meter, which is of match
needle type,, is coupled to the shutter speed dial and
preset aperture ring.
The CdS photocell of the exposure meter is placed in the
position closest to the beam-splitting condenser lens.
The central area metering system enables accurate
measurement of the main subject even in back lighting
conditions. The rectangular frame in the viewfinder
represents the light measurement area of the CdS
photocell. Place the main subject within this frame and
measure the intensity of light so as to obtain the proper
exposure.
The correction of the full aperture opening of the
lens is performed automatically. Therefore, the opera-
tion does not change regardless of the speed of the lens
used. An FL lens can be used only with stopped-down
metering.
Due to the characteristics of the CdS photocell, the
movement of the meter needle may occasionally be
slow at low light intensities.
When not using the camera, set the meter switch at
"OFF" or attach the lens cap so as to prevent
unnecessary consumption of the mercury battery.
Metering at "B" on the shutter speed dial is not
possible with the built-in exposure meter.
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in Exposure Meter in Exposure Meter in Exposure Meter