<s>
In	O
photography	O
,	O
the	O
metering	B-Algorithm
mode	I-Algorithm
refers	O
to	O
the	O
way	O
in	O
which	O
a	O
camera	O
determines	O
exposure	O
.	O
</s>
<s>
Cameras	O
generally	O
allow	O
the	O
user	O
to	O
select	O
between	O
spot	O
,	O
center-weighted	O
average	O
,	O
or	O
multi-zone	O
metering	B-Algorithm
modes	I-Algorithm
.	O
</s>
<s>
The	O
different	O
metering	B-Algorithm
modes	I-Algorithm
allow	O
the	O
user	O
to	O
select	O
the	O
most	O
appropriate	O
one	O
for	O
use	O
in	O
a	O
variety	O
of	O
lighting	O
conditions	O
.	O
</s>
<s>
Although	O
promoted	O
as	O
a	O
feature	O
,	O
center-weighted	O
metering	O
was	O
originally	O
a	O
consequence	O
of	O
the	O
meter	O
reading	O
from	O
the	O
focusing	O
screen	O
of	O
SLR	B-Algorithm
cameras	I-Algorithm
.	O
</s>
<s>
In	O
this	O
metering	B-Algorithm
mode	I-Algorithm
,	O
the	O
camera	O
uses	O
light	O
information	O
from	O
the	O
entire	O
scene	O
and	O
creates	O
an	O
average	O
for	O
the	O
final	O
exposure	O
setting	O
,	O
giving	O
no	O
weighting	O
to	O
any	O
particular	O
portion	O
of	O
the	O
metered	O
area	O
.	O
</s>
<s>
This	O
metering	B-Algorithm
mode	I-Algorithm
was	O
first	O
introduced	O
by	O
the	O
Nikon	B-Algorithm
FA	I-Algorithm
and	O
was	O
termed	O
Automatic	O
Multi-Pattern	O
metering	O
.	O
</s>
<s>
Although	O
there	O
are	O
some	O
similarities	O
with	O
multi-zone	O
,	O
matrix	O
,	O
or	O
evaluative	B-Algorithm
metering	I-Algorithm
,	O
this	O
mode	O
uses	O
a	O
high-resolution	O
sensor	O
for	O
detailed	O
detection	O
and	O
gives	O
more	O
weight	O
to	O
reduce	O
clipping	O
.	O
</s>
