ISO
Sensitivity
"ISO
sensitivity"
is
the
digital equivalent
of
film speed. The higher the
ISO
sensitivity,
the
less
light
needed
to
make
an
exposure, allowing
higher
shutter speeds
or
smaller
apertures,
but
the
more likely
the
image
is
to
be affected
by
noise (randomly-spaced
bright
pixels, fog,
or
lines; noise
is
particularly likely at settings between Hi
0.3
(equivalent
to
ISO
8000) and
Hi
2 (equivalent
to
ISO
25600)). Choosing Auto allows
the camera
to
set
ISO
sensitivity automatically in response
to
lighting conditions.
-----
Mcide
________
T
_______________
--
--
-----
lsosensiiivity
__________________________
--
____
__.,...,_
______
-- -
--
---·
-
-··-----~--
-···
-------·
·-
·---
-
------------~---------.-..-----
t;, ®, ~ :
Auto
-t-------;---------
-
----
,-
----
:-
-
---
.-
----
-
--
-
-;
---
.-
---;
------------
P,
S,
A,
M : 100-6400
1n
steps
of
/3
EV,
H1
0.3,
H1
0.7,
H1
1,
H1
2
·---:-------:-
--------+----------
---------
--
--
----
-···-
-------------·
-
--
---------------------
---
-
Other
shooting
modes I Auto; 100- 6400
in
steps
of
1
13
EV;
Hi 0.3, Hi 0.7,
Hi
1,
Hi 2
-----
· _
__________
_L
-----
---------
--
-
-------------
---
-···-
------------------
--
---
----------
1 Place
the
cursor in
the
information display.
If
shooting information
is
not
displayed in
.------
----.
the monitor, press
the
•H•
button.
Press
the
•H•
button
again
to
place the cursor in
the
information display.
2 Display ISO sensitivity options.
Highlight
the
current
ISO
sensitivity in
the
information display and
press®.
3 Choose an ISO sensitivity.
Highlight
an
option
and
press®.
To
return
to
shooting mode, press the shutter-release
button
~o:K
halfway.
~
B SeeAiso
Information display
Auto
ISO
sensitivity control can be enabled
in
modes
P,
S,
A,
and
Musing
the
Auto ISO
sensitivity control
option
in
the
ISO sensitivity settings
menu
(0 64). For
information
on
using
the
High
ISO NR
option
in
the
shooting
menu
to
reduce noise at
high
ISO
sensitivities,
see
page 64. For
information
on
using
the
Fn
button
and
the
command
dial
to
select
ISO
sensitivity,
see
Custom Setting
f1
(Assign
Fn
button,
0 64).
37