(1) When the danger of infection is high, you should be governed by
the advice of the medical staff regarding the use of masks, gowns, and
rubber gloves.
(2) As a general rule, you should always wear a gown to protect your
clothes from contamination and infectious organisms.
Follow proper
procedures for disposal of these protective items after use.
c. Using a Tripod. No matter how good you are, a tripod is a must for
90% of the clinical medical photography you might be assigned to do.
3.
Film and Filters.
a. Medical photography requires a wide range of film and filter
combinations. For gross specimen work, color negative and color slide film
is most often used.
These will provide the truest rendition of the
condition of the specimens.
Black and white panchromatic film, infrared
film, and orthochromatic films are used in special situations; in addition
to color films.
a. Infrared film, when used with a blue-green filter, can show blood
circulation and some dermatological conditions by enhancing the arterial
patterns under the skin not normally visible to the naked eye.
b. Color infrared film, when used with a yellow filter, can show the
same conditions as black and white infrared film.
c. Orthochromatic films are used to show skin conditions such as
rashes, lesions, etc., because they darken the pink or red blotches that
occur.
4.
Lighting.
Proper lighting in clinical photography is important, not just for proper
exposure but to accurately record the nature of the clinical condition you
are photographing. Lighting for clinical photography falls into three basic
types: flat, contour, and texture.
a. Flat Lighting.
Whether one light source or several is used to
illuminate the subject, the light falls on the subject from near the camera.
When using more than one unit, they must be of equal intensity, have the
same color balance, and be equally spaced on either side of the camera at
equal distance from the subject.
4-3
SS0516
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