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When the pupils in someone s eyes appear unnaturally red in the photograph, it is referred to as red eye
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Red eye occurs when you use a straight-on flash, such as a built-in flash The light actually goes into the pupil of the subject s eye and bounces off the retina and back into the camera lens after being tinted red by the blood in the eye (Pretty gross, huh )
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Most digital cameras have a red-eye reduction mode It works by firing a preflash to cause the subject s pupils to get smaller in reaction to the initial bright light, so
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that there s less chance of reflecting light from the back of the eyeball during the actual flash This technique works, but it causes a couple of undesirable problems: s The preflash causes the subject to blink, and the end of the blink, when the eyes are reopening, occurs just when the real flash occurs and the shutter clicks So the subject looks drugged, because the eyelids are half open s This kind of shot increases shutter lag by a factor of two to three, because the camera has to wait for the preflash to complete before the flash and the shutter can fire so you almost always miss the critical moment Your best bet is to turn off red-eye reduction and fix the red eyes in your image editor The exception, of course, is when you re making shots that you want to transmit immediately to another source or place on the Web
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34 Use Reflectors to Fill in Shadows in Sunlight
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An alternative to using fill flash when you re shooting portraits or still lifes in bright sunlight is to use a reflector to bounce light from the sun back into the shadow areas You can use any white or silver reflecting surface Reflectors are much better than fill flash for filling shadows in indirect lighting, such as shady situations or cloudy days A reflector is any surface that bounces light Light, neutral-colored surfaces, preferably smooth white or silver, do the best job of reflecting light Foam board is readily available in art supply stores and is often used for that purpose Another readily available and portable reflector is one of the folding reflectors that are used to keep the temperature down in parked cars (also a good idea for protecting your camera gear from extreme temperatures when it s locked in the car) The metallic car reflectors are very bright
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Try This: A Good Reflection on Your Photos
Try using the folding reflector that you place in your car windshield for a reflector They re sold at flea markets for next to nothing Some come with a different color on each side, so you can create effects by bouncing a blue or gold light from the reflector into the shadow areas Try projecting reflected light through different kinds of translucent or perforated material to get patterns of light effects
CHAPTER 5: Lighting Techniques
Why Do I Need to Use a Reflector to Light a Scene
When photographing in bright sunlight, you can often get harsh shadows in your shot Reflected light can provide another light source to help mitigate this harsh shadow effect Reflected light can also be used as a special effect to increase shadow effects or to cast another colored light on a subject Reflectors are much better than fill flash for filling shadows in contrasting lighting, but not as easy to manage without a helper In indirect lighting, such as shade or cloudy days, reflectors are the only affordable and portable way to fill shadows
How Do I Set Up and Use Reflectors
Positioning is the key to making reflected light work properly The reflectors need to be facing into the sun at an angle that bounces the light back at the subject It helps if you have a friend along to hold the reflector You can also use light reflected off existing structures, such as a white building wall, a white sand beach, or water The most important factors to watch out for in positioning reflectors are s Don t position the reflector so close or use one that s so bright it causes cross shadows s Try to avoid shining into the subject s eyes, which may cause squinting s Don t aim it directly at the camera or you risk having it shown in the background or creating unwanted lens flare s Don t position it so that its light casts a shadow on the subject
35 Use Inexpensive Lighting for Extreme Close-ups (Macros)
When shooting extreme close-ups (also known as ECUs or macros), you often want to be able to control the direction and brightness of the light so that you can shoot at a small enough aperture to give you maximum depth-of-field
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