Exposure
Program
The exposure program
for
programmed auto
is
shown
in
the
following graph:
~?f"_7I~~L.71L-J~~---"r~C-.7I'~:-7I"~--f~;~'"""""~_r
'1,-~
~')
ISO
200; lens with
maximum
aperture
of
filA
and
minimum
aperture
of
f/16
(e.g.,
AF
SOmm
filA
D)
,,0"'"
.-~----~-.
----------.
------~---:;~~----,,~-1
.----71"--;(-
--;(,-----/--+-+--r--r---,(---;;f'---;f'------,f---,f--------"L---/---of-----,f-/
-
t><
i
/"
I
r----,!"---,~I'---;;1~""'_.,j""'_.,j"'--,+l.---;;f'-----7i"---:;;f''_____;l''_____;l''----T,'----T,-7I''--;f-___;;{
<0
I
I
"IQ !
/ / I
-
-~
<\
I
I
,,'0 I
,~
1
i
~~!
/'
"
~"
1132
30" 15" 8" 4" 2" 1" 2 4 8 15
30
60
125
250
50010002000
4000
8000
1/1
1/1.4
1/2
Q)
1/28
~
~
1/4
+-'
~
Q)
115.6
Q..
«
1/8
1111
1/16
1/22
Shutter speed
The maximum and minimum
values
for
EV
vary with
ISO
sensitivity;
the above graph
assumes
an
ISO
sensitivity of
ISO
200 equivalent.
When matrix metering
is
used,
values
over 17'/3
EV
are
reduced to
17'/3EV.
372