Nikon Photomic-T Finder Manuale di istruzioni - Pagina 15

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COUPLING

RANGE OF METER

It may happen that by an e

-1<

tremely bright or dark scene, the meter needle stops or

make a discontinuous movement and con not be set to the center.

This does not indicate

any disorder but the fact that the br ightness of the scene is out of the coupling range

of the meter.

For example, when using a lens of

and a film of ASA

100, a

brightness over the aperture

Fj22

at the shutter speed

500 sec. or under

F/1A

sec. will not be within. the coupling range

The same movement of the needle may be possible

even within the coupling range

when the combination of aperture and shutter speed is selected too far away from the

correct exposure toward the opposite limit.

In this case, reset the shutter speed to 1/15

sec. and try again the measurement, then the correct centering will be obtained.

Note:

The least coupling brightness var

es with the max. aperture of the lens in use

Therefore, for

example,

if the

4 lens is replaced with the

1.4 lens, a

brightness under

1 sec. will become out of the coupling range of the

meter