Table of Contents
Advertisement
2.5
3
3.5'
5
7
0.8
1
1.2
1.5
2
I I I I
I
:
I I I
16
n
8 4
• 8 11 16
11
~8
, 5.6 8 11
'
16
,
ft
I
.
.
.
Index (orange
line)
ilm Plane Indicator
Distance Scale
The distance scal
e
indicates the di
stance
betwe en the
focu sed subject and the film plane
.
The scal
e
is neces·
sary for checkin
g
th
e
depth ·of ·fi eld, for f lash and infrared
photographies
.
• The correct position of the scale is in the center of
each value
.
For example
,
th
e
correct position of a
two·
digit value is the center of the two figure
s.
Infrared Index
For infrared photography, correction of the distance scale
is necessary because the focal point slightly deviates from
ordinary photography
.
Focus first in the ordinary manner,
then adjust the distance scale to the infrared mark .....
( .. R
..
in the case of FL lenses) in red.
For
instance,
if the
distance scale reads 10m after focusing, merely shift the
10 scale to ...
..
position
.
The position of
..
... on the FTb
is based on using film with the highest wave ·length sensi
·
tivity figure of
800mp,
such as Kodak IR 135 film and
Wratten 87 filter
.
Film Plane Indicator
When focusing is done by actual measurement, measure
the distance from the film plane indicator and interpret
the measured distance on the distance
scale.
When performing close ·ups, macrophotography or copy
work, decide the distance of the camera from the subject
with this
indicator.
37
Advertisement
Table of Contents
