User manual

~hun.r
ASA Speed
B 1
1/2
1/4
1/8
1/15
1/30
1/60
1/125
1/250 1/500
1/1000
20
·
(25)
32
·
(40)
·
(50)
64
·
(80)
100
·
(125)
A
·
(160)
200
·
(2,50)
·
(320)
400
·
(500)
·
(640)
800
~
·
(1000)
· (
1250)
1600
The area A indicates
the
reading range
of
the
meter.
The
area B
indicates
that
although
the
shutter
speed
index
is
bl
ack
and
the
meter
needle moves,
the
meter
is
NOT
operating
properly
.
When
the meter needle is centered with the shutter speed dial set
at
Busing
ASA20
-
50
films, this indicates that
the
exact
shutter speed required
is 2 seconds. Please expose
your
picture for 2 seconds.
27