Nikon Photomic FTN Finder 사용 설명서 - 페이지 15

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:ull-Aperture Measuring Method)

Centering the Needle

The correct exposure is found by centering the meter needle, either in the V-shaped nC'tch

which is visible in the viewfinder or at the central mark located beneath the window on top of

the finder. Turn either the shutter speed selector or lens

aperture

ring until the needle is

centered. For fine adjustments of less than one f/stop, use the lens aperture ring,

since

provides reliable intermediate settings between the marked f/numbers. The shutter speed

selector is not set for intermediate values.

As an added convenience, the shutter speed in use appears in the viewfinder, so the

shutter

speed can be adjusted while observing the exposure meter needle. In dim light, the accessory

Photomic Illuminator DL-l illuminates the meter needle and shutter speed for easy reading.

Under extremely low light conditions, the meter needle may center at the

HB"

setting on the

shutter speed selector. If so, the correct exposure time is two seconds. If the needle centers at

"T," exposure time is four seconds.

If the needle cannot be centered or still moves erratically after all possible aperture-shutter

speed combinations have been tried, then the light is too bright or too dim for the meter. The

meter's effective range (coupling range) varies according to lens used and film speed. For

example, with the 50mm f/1.4 lens and film rated at ASA 100, it extends from f/1.4 at 1/2

second to f/11 at 1/1000 second.

Note: If the meter is exposed to bright light at below-freezing temperature, it may

malfunction or cease to operate until the temperature rises again. Therefore, be careful

not to leave the meter turned on for more than three minutes at a time in cold weather.