Table of Contents
Advertisement
Depth-of-Field Scale
The depth ·of·field scale indicates the range of
subjects
which will be in focus sharply on the film
.
In this case, the
depth·of·field behind of the subject is deeper than in front
of subject.
This range will vary with the following factors:
The depth·of ·field will be deeper the
smaller
the aperture
opening, the further the distance of the subject, and/or the
shorter the lens focal length.
The depth ·of·field will be
shallower
the larger the aperture opening, the nearer the
distance of the subject, and/or the longer the lens focal
length.
For example,
if
the lens used is 50mm and the subject has
been focused at a distance of 3m
(10'
),
with an f /8 aperture
opening read off from both indexes on either side of the indio
cator (orange line), the depth·of·field is from approximately
2.3m (8') to 4.3m (14').
If the aperture is closed down to
f/
16, the picture will be·
come sharp between 1.9m
(6'
) to 7.6m (25') from the
camera.
This range will vary with the f/stop selected.
18'
28
,
I
.~
,
t
J
. - ' - . " 'J
l '
,. tlt
10
Ii
,'0
It
,,
~
,
I
1.2
1S
••
n
3
5 lOP
m
ti
""ll"'"
I.
I
i.1:-J~.
h8U16
.
o:.~
/ . ,
"'
J,;.
j
32
IOnt ..
L ....
f/8
F
Depthoof.fleld Um-4.3m <8'-14')
ocused at 3m (10')
SOnnn
L.na f/1.
DePth-of·flald 1.9m-7.6m
<&'-215')
Focused at 3m (10')
Advertisement
Table of Contents
