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Canon AE-1 User Manual

Page 55

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ckm the red merk in (he cmr de^ribed

above.

The FO iensee mounted on the AE'1

should elweys be used with full aperture

metering. Stops>ed metering vrill give

the wrorsg exposure.

(

1)

50

Manual Aperture Control

When accessories requiring manual

aperture control are used between the camera

tx>dy and a lens, lock the automatic aperture
lever in the manual position before mounting

the lens.

I

Lock for Manual Aperture Control {1)

For manual aperture control, push the

automatic aperture lever counterclockwise

until it stops and locks. When accessories such
as extension tubes are attached to a lens that
has been set for manual control, the dia*
phragm blades of the lens open or close as the

aperture ring is turned. To revert from marsual
control, reset the automatic aperture lever in

its original position.

2

Lock for Manual Aperture Control (2)

There arc some FD lenses with the

manual lock (ever requiring a different pro*

cedure for manual control setting. With these

particular lenses, the automatic aperture lever
must be turned fully counterclockwise while
the manual lock lever is brought to the "'L*'

position. Once (his has been done, when the