User manual
Table Of Contents
Dark-colored 
wall 
and 
hangings, 
and 
only 
one 
window: 
bright 
sun 
outside, 
40 
econds; 
hazy sun,  80 
seconds; 
cloudy 
bright, 
2  minutes 40 
seconds; 
cloudy dull.  5 
minutes 
20 
seconds; 
The 
foregoing 
is 
calculated 
for 
room 
whose 
windows 
get 
the 
direct 
light 
from 
the 
sky, 
and 
for 
hours 
from 
three 
hours 
after 
unri 
e 
to 
three 
hours 
before 
sunset. 
If 
earlier 
or 
later, 
the 
time 
required 
will 
be 
longer. 
The 
Slops-Single 
lel/s.-If 
the 
middle 
top 
is  u  ed  gIve 
twice 
the 
time 
of 
the 
table; 
if 
the 
smallest 
top 
is 
used 
give 
four 
times 
the 
time 
of 
the 
table. 
The 
Slops-Double 
Lens.-If 
the 
third 
top 
i  u 
ed 
give 
twice 
the 
time 
of 
the 
table; 
if 
the 
fourth 
stop 
is 
used 
give 
four 
times 
the 
time 
of 
the 
table. 
If 
the 
large 
t 
top 
is 
used 
give 
one-half 
the 
time 
of 
the 
table. 
TIME 
Expo 
URE 
IN 
THE 
OPE 
AIR. 
When 
the 
smallest 
stop 
is  in 
the 
lens, 
the 
light 
admitted 
i 
so 
much 
reduced 
that 
time 
exposures 
out 
of 
doors 
may 
be 
made 
the 
same 
as 
interiors 
but 
the 
exposure 
IUU 
t 
be 
much 
horter. 
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