Sony MPK-TRV3 User Manual

Recording underwater is different from recording on land because it is affected by the
clarity and depth of the water and the light conditions. The following are hints for good
recording underwater.

Water absorbs light, especially red light, so that objects in deep water or in the distance
are seen as bluish. The color of objects is affected by the clarity of the water.
To record the subject with nearly actual color, use the color filter.

The best recording time is about from 10:00 a.m. to 2:00 p.m. When the sun is its
highest, optimum results can be obtained.

Since the refractive index underwater is higher than that in air, an object appears 1/4
more closer, and therefore larger. This phenomenon affects the lens on the video camera
recorder as well as the human eye. Using a wide-conversion lens (not supplied) is
recommended.

When recording, keep your body stable.
An unstable shot will be magnified on the TV screen. Move the video camera recorder
as slowly as possible. As most of the object underwater move, you can record a good
programme without moving the video camera recorder.

In deep water or under rocks where direct sunlight does not reach, recording with an
underwater video light is recommended.
To record at night, use a powerful underwater video light.

Underwater video light
HVL-ML20 (not supplied)

Attachable to the left and
right shoes

Color filter