Nikon SB-140 instruction manual Red Eye

"RED EYE"____________

"Red eye" is a phenomenon in flash photography where the center portions of the subject's eyes appear as bright red orbs in color photographs (or white in black and white pictures). This is a result of the light from the flash illuminating the retina directly. If the subject looks straight into the lens and there is little or no ambient light. the pupil is wide open, making the retina clearly visible in the picture.

To avoid "red eye," you can take any or all of the fol- lowing precautions:

1.Ask the subject not to look directly into the lens when the picture is taken.

2.Remove the flash unit from the camera and hold it as far away as possible from the camera by using a sync cord.

3.Increase the room 's overall illumination to reduce the opening of the subject'spupils.

TIPS ON SPEEDLIGHT CARE____

•To remove dirt or fingerprints,'wipe with a dry soft or silicon-treated cloth. Never use thinner, benzine or alcohol, since they might damage the plastiC parts.

•To prevent damage to the flash unit'selectronic cir- cuitry, keep the flash unit away from places where the temperature is likely to go higher than SO°C (122°F), such as inside the trunk of a car in the hot summer sun; also do not store the unit in exception- ally damp places. Use the S8-140 within the range of - 1O°C(14°F)-+SO°C(122°F).

•The UV adapter 8W-SUV is easily affected by humidity. 8tore the 8W-S UV with a desiccant or in a well-ventilated place.

•If your 88-140 has not been used for a long time, its recycling time may be longer. To maintain the built-in condenser in peak condition, there by enabling you to use the 88-140 for many years, fire the flash unit a few times every month. After firing , wait until the ready-light lights, then turn off the power switch of the power supply, remove the batteries, and store the S8-140 in a suitable location. This will prevent the condenser from deteriorating.

•Keep the flash unit away from salt water and out of the rain .

•Never attempt to disassemble or rapair the flash yourself. These delicate procedures should be left to an authorized service faci lity.

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