17
PPhhoottoo TTiippss CCoonntt..
6. When using daylight or flash, if your camera consistently over
or underexposes the image, you may want to adjust your
camera’s exposure compensation settings. Many cameras allow
you to adjust both available light and flash exposure with an
EV control in the camera’s menu.
7. Many photographers transfer their images to the computer
where they can fine tune the appearance of the image. Many
of the image manipulation programs make you think you can
magically correct any image taken and make a good picture.
One thing to remember when using an image manipulation
program, is that if the image is overexposed, much of the color
is missing. If the color is missing you cannot adjust it. If images
are slightly underexposed, the color is there, but it is just dark
and you can adjust it to some degree. So if you error in
exposure, it is better to have the image slightly underexposed
rather than over exposed.
18
D
Diiggiittaall 66111144..5500--0022--00221100
19
PPhhoottoo TTiippss
1. The number one rule in underwater photography is eliminate
as much water between camera and subject as possible. Get
as close as you can to the subject, then use the zoom. If you
are using flash, subjects beyond 6 feet (1.8m)will not have
much color.
2. The camera’s built-in flash is very close to the camera lens. The
flash can light up any suspended particles in the water and they
can be recorded in your picture. This effect is called backscatter.
To eliminate as much backscatter as possible, photograph close.
Photograph in clear water; do not stir up the sand or silty
bottom. If backscatter becomes a problem in the environment
you are photographing, an external flash will help eliminate
much of the backscatter.
3. Many digital cameras have a slight lag time between when you
press the shutter release button and the camera actually takes
the picture. Hold the camera steady a second or two after
pressing the shutter release button.
4. Do not shoot down on subjects as they will quite often blend
into the background and be difficult to see in the photograph.
Shoot subjects straight on or shoot up at a slight angle using
the blue water as a contrasting background.
5. Underwater flash is used to restore the warmer colors filtered
out by the water as well as to illuminate the subject. When
photographing underwater, set the camera to use flash on
every shot. If the camera’s flash is set to AUTO and the sun is
behind your subject, the camera may see enough light and not
fire the flash. With the sun behind the subject, the subject is
shaded (dark) and needs flash for a good exposure.
GGeenneerraall TTiippss
1. Due to the power required to operate the camera, flash, and
LCD screen, it is a good idea to start each dive with a fresh set
of batteries.
2. Some cameras reset their flash to AUTO when the camera is
turned on. If you prefer another setting be sure to select it.
3. As soon as you enter the water, take a moment and check the
housing to see that it is properly sealed.
4. Next, check to see if there are any bubbles on the face of the
lens port. If there are, take your finger and remove them. If
there are bubbles on the lens port they can produce soft focus
spots in your photographs.
5. If you are shooting with the camera’s built-in flash and the
camera lens is set to the widest angle, you may need to zoom
the lens slightly or a shadow may appear in the lower left
corner of close-up photographs. The lens port may block some
of the light. Installing the flash diffuser will help to eliminate
the shadow.
(You can test this above water)
N
NO
OTTEE:: To shoot photographs closer than 2 feet (0.6m), you should
use an external strobe such as the DS51 or DS161. You can
position an external strobe so nothing blocks the light path
between the strobe and the subject.
housing
lubricate shaft
pull out to
expose shaft
Diagram B
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