TIPS
ON
UNDERWATER
PHOTOGRAPHY-------,
The
results
you
will obtain when shoot
ing
un
derwater Lens focal length and picture angle
depend upon the transparency of the water, the
shooting depth, whether or not
ob
jec
ts
a
re
floating
near your subject, the condition of the light, and
several other factors.
To
take good underwater
photos,
you
must have a basic knowledge of under-
water photography.
Water's
magnifying effects
Lig
ht
is
refracted
in
water,
so
underwater objects
seem approximately
25%
larger and closer than they
actually are.
As
a result, the picture angle of the lens
in
use becomes smaller. For example, the picture
angle of a 35mm lens underwater
is
almost the same
as
th
at of a 50mm lens on
la
nd.
Illustrations, underwater photos, and editorial
supervision supplied
by
Akira Tateishi, Marine Art
Center, Co
.,
Ltd.
58
Focal length (mm)
~
-
15
-
20 -
28
74°
35
62°
80
30°20'
4
1 Size of object
as
it
appears underwater
(4/3U
2 Actual si
ze
of object
(U
3 Actual or measured distance (j)
4 Distance set
on
lens
(3/41)
5
Your
eye
6 Underwater mask
94°
78°
59°
46'30'
22'
45'
To Next Page
Loading...
Need help?
General
