User manual
Table Of Contents
Figure 
18 
Figure 
19 
everything 
from 
about 
4 % feet  to  almost  8  feet 
will 
be 
sharp. 
If 
the 
camera 
is 
focused for 
15 
feet,  we find 
that 
atj/5.6, 
Figure  19, 
everything 
from 
about 
I I  feet 
to 
about 
20 
feet will 
be 
sharp, 
and 
withj/I 
I every-
thing 
from 
about 
9 
Y2 
feet to 35  feet will 
be 
sharp. 
The 
DEPTH 
OF 
FIELD 
SCALE 
indicates 
the 
depth 
to 
the 
rear 
only 
when 
the 
camera 
is 
focused  for 
3 
Y2 
feet. 
For 
3 
Y2 
feet 
the 
depth 
with 
j/3.5 
is 
3 feet 
4 inches to 3 feet 8 inches; 
withj
/5ยท6, 3 feet 3 inches 
to  3 feet 9 
% inches. 
25 










