Aperture, Sensitivity, and Flash
Ran~
Flash
range varies
with
sensitivity
(ISO
equivalency) and aperture.
____
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,_
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..
~_
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•••
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N'"
,
,_
..
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Aperture
at
ISO
equivalent
of
Range
········2····0····0
,........
400
800
1600
3200
....m·_·
r·
~-..ft.....-
....
..
.~.
1.4 2 2.8 4 5.6
1.0-8.5!
3ft. 3in.-27ft.
11
in
.
..................................
, , , , i
..
2 2.8 4 5.6 8 0.7-6.1
2ft.4in.-20ft
.
......
~
,
"...
···················:··c.. .
..
2.8 4 5.6 8
11
0.6-4.2 2ft.-13ft. 9in.
4 5.6 8
11
16 0.6-3.0
··2ft.~9ft:l0in:
5.6 8
11
16 22 0.6-2.1 2ft.-6ft. 11in.
8
11
16 22 32 0.6-1.5
:2ft.~4ft.
11
in.
11
16 22 32 0.6-1.1
2ft.-3fi.7in.
16 22 32 0.6-0.8
,.
ift.-2fi.7in.
In
the following modes, the maximum aperture (minimum f-number)
is
limited
according
to
ISO
sensitivity when the built-in flash
is
used:
.......................
·········Maximum
aperture
atiSOsensi"ilvlty
of
200
400
800
1600
3200
P,
2.8 3.3 4 4.8 5.6
~
5.6 6.7 8 9.5
11
For
each one-step increase in sensitivity
(e.g.,
from 200
to
400), aperture
is
stopped
down
by half
an
fi-stop.
If
the maximum aperture
of
the
lens
is
smaller than given
above, the maximum value for aperture will be the maximum aperture
of
the lens.
266
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