Meter And Ae Coupling Ranges - Canon A-1 Instructions Manual

AE Range of Silicon Photocell at Various ASAs
FD 50mm f/1.4 Lens
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Meter Coupling Range ,
When using the FD 50mm f/1.4 lens and
ASA 100 film, the built-in exposure meter
couples within a range of EV -2 (f/1.4 at
8 sec.) to EV 18 (f/16 at 1/1000 sec.)
AE Coupling Range
At given film speeds, the built-in exposure
meter couples with the aperture and shutter
speed as indicated in the chart below.
Outside the coupling range, the camera
warns you by flashing the photographic data
inside the viewfinder.