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How
to avoid or reduce red-eye
By Jakob Jelling
Snapjunky.com
Photography with the aid of a digital camera is beyond doubt
very fascinating. However, it also has many a nooks that the
users of the digital camera must be aware of and also must be
well educated to deal with in order to produce good photographs
worth the most prized digital camera. Such a concept is that of
the red eye! In order to understand what this red eye actually
is, a little detailed introspection is necessary. Basically
speaking red-eye is a function of at least three things, they
are firstly, ambient level of light because stumpy light level
causes the retina of the person to be photographed to open wider
to admit more light thereby divulging open the iris, which is
the primary part that reflects the red light hence giving the
appearance of red eyes for the subjects. Also secondly the
younger the person being photographed the wider remains the
retina and hence the greater the effect of red eye in the
picture. Thirdly, the reflection angle of the flash plays a
vital role, as the light is recoiled back to the digital camera
and the closer the incident light beam is to this reflected
light beam, the greater becomes the red eye effect. To prevent
this instruments such as flash brackets are useful to make the
flash a bit removed from the
propinquity of the lens. Thus the red eye effect is somewhat
revealed till this part of this discussion. Now is the time to
look into a greater detail in order to analyze the various
aspects of the red eye effect and also find out ways of reducing
the problem as far as possible.It can be noted here that the
only important thing is that the users must ensure that the
proper fixing of the angle between the flash beam and the lens
axis. The general rule here is that the photographer must keep
the angle wide enough that the light beam from the flash does
not reflect off the retina of the person being photographed and
comes right back into the digital camera lens. A good idea is to
make the red-eye reduction work by making the flash shine a
light into the eyes of the person being photographed just before
the flash is incident and the shutter is pressed. This causes
the irises in the eyes of the person being photographed to
narrow down or shrink. As a result of this the eye develops a
smaller opening for the eye view of the digital camera and does
not show off the blood filled retina. This light is called pre
light! And very importantly this process works only if the
person to be photographed is in point of fact looking directly
at the flash for the pre-light to come.
Other factors influencing the red eye are the level of
ambient light during the time when the photograph is being taken
and how near the flash light is to the lens. The rule of thumb
comes out that the brighter the ambient light; the lesser is the
effect of red eyes, everything else being one and the same. As
the flashlight goes farther from the lens, the fewer becomes the
effect of red eyes, everything else being one and the same
again. Thus the key idea is that red eye is not caused if the
ambient light is comparatively high. And it does have a
significant effect if the shooting area is dark. Many digital
cameras have built in features for anti red eye that is used to
reduce red eye when taking a picture of a person looking
straight at the camera also. But manually, the best red eye
reduction can be obtained with the help of an external flash as
described.
The above discussion has dealt with the most important ideas
regarding the red eye effect. The discussion has analyzed the
inherent facts about the digital camera red eye effect, their
causes as well as remedies. The only thing that remains is that
the users must implement these ideas while shooting under
circumstances discussed here so that the red eye effect cannot
harm the beauties of art created with the aid of the fantastic
device, the digital camera!
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About the V I Imagery Website |
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At V I Imagery, our goal is to supply quality art,
photography, and digital imagery in a pleasant, informative, and
relaxing fashion. From the art, photos, and digital images
in our galleries, to the tips and tricks in our forum, we have
tried to design our site to be family oriented and user
friendly. If you experience problems with any image, link, tip,
trick, game, etc. or find that any of our pages contain, or lead
to pages that contain, any faulty or offensive information,
please let us know so that we can correct the issue and insure
that the V I Imagery website continues to strive towards it's
goals.
Thank You,
The V I Imagery llc.
Management Team |
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