Nikon EL2 User Manual
Page 66
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Coupling Lever Lock/Release Operation
The EL2 is fitted with a meter coupling lever at the base
of the lens to provide for coupling between the metering
circuit and the lens’ meter coupling ridge. When the
camera body is used with lenses offering automatic
maximum aperture indexing, the lever remains in the
normal position. However, when the camera body is
used with lenses and/or accessories not provided with
this feature, the lever must be locked up to permit ex
posure measurement via the stop-down method. To lock
up the lever prior to mounting the lens, simply push in
the coupling lever release and lift the lever up and out
of the way for operation. To return the lever to its nor
mal position for operation with a lens or accessory ca
pable of automatic maximum aperture indexing, simply
push the lever back down until the lever clicks into
place; then, mount the lens as explained previously.