Elglosure Program
The exposure program for programmed auto
is
shown in
the
following graph:
ISO
200; lens
with
maximum
aperture
of
f/l.4
and
minimum
aperture
of
f/16
(e.g.,
AF
SOmm
f/l.4
D)
~'\
_ .
~
)<
~:t-.'<:l
';
'1,
':J
~
0
<Q
'\
'0
~
,,\),,",,'1,
,,':J
,,~
1/1.4
i"--,i~f-?!~'--ol':;......,r.:;......,r.~:--;¥~~----,jL----,jL-+-7,L--+-*
1/2
I
Q)
1/28
8
to
~
_/~
....
1/4--
~
Qj
1/5.6
V.,;-
Q.
1/""':
«
1/8
r:;.;;:::
:;;:
~--~br<-·
---;F---7l"-7I"--+--f
-:t'-:f''------:¥-*----:¥-----:¥--+-,IS"~-#--#-..,r
'1,'1,
1/22
"--"----JL.--I"----''----''~'----''-------'''---''.---''---''-''_____'''_-'''-_.Y_-'''-
_
y'1,':J
4" 2"
1"
2 4 8
15
30
60
125
250
500
1000
2000
4000
8000
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
1
/3
EV
are reduced
to
17
1
h
EV.
426
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