<s>
The	O
Pentax	B-Algorithm
K-5	I-Algorithm
is	O
a	O
16.3-megapixel	O
digital	B-Device
single-lens	I-Device
reflex	I-Device
camera	I-Device
,	O
announced	O
on	O
September	O
20	O
,	O
2010	O
.	O
</s>
<s>
It	O
began	O
shipping	O
in	O
mid-October	O
2010	O
and	O
it	O
was	O
replaced	O
by	O
the	O
Pentax	B-Algorithm
K-5	I-Algorithm
II	I-Algorithm
in	O
the	O
third	O
quarter	O
of	O
2012	O
.	O
</s>
<s>
Externally	O
,	O
the	O
camera	O
body	O
is	O
almost	O
unchanged	O
from	O
the	O
Pentax	B-Algorithm
K-7	I-Algorithm
(	O
the	O
mode	O
dial	O
on	O
the	O
left	O
side	O
is	O
slightly	O
higher	O
)	O
.	O
</s>
<s>
The	O
KAF2	O
mount	O
is	O
compatible	O
with	O
all	O
Pentax	B-Algorithm
K-mount	I-Algorithm
lenses	O
made	O
since	O
1975	O
.	O
</s>
<s>
The	O
K-5	O
can	O
record	O
video	O
at	O
1080p	O
full	O
HD	O
as	O
well	O
as	O
at	O
lower	O
resolutions	O
using	O
the	O
motion	B-Application
JPEG	I-Application
codec	O
.	O
</s>
<s>
DxO	B-Algorithm
Labs	I-Algorithm
gave	O
the	O
16.3	O
MP	O
Sony-built	O
sensor	O
a	O
score	O
of	O
82	O
.	O
</s>
<s>
This	O
ranked	O
at	O
the	O
time	O
of	O
testing	O
,	O
the	O
highest	O
ever	O
for	O
an	O
APS-C	B-Algorithm
sensor	O
and	O
ahead	O
of	O
several	O
full-frame	O
sensors	O
such	O
as	O
the	O
one	O
used	O
in	O
the	O
Nikon	B-Algorithm
D3	I-Algorithm
.	O
</s>
<s>
One	O
of	O
the	O
major	O
factors	O
was	O
shadow	O
noise	O
and	O
dynamic	O
range	O
(	O
in	O
raw	B-Application
mode	O
,	O
to	O
bypass	O
in-camera	O
processing	O
)	O
.	O
</s>
<s>
However	O
,	O
the	O
closely	O
related	O
sensor	O
in	O
the	O
Nikon	B-Algorithm
D7000	I-Algorithm
scored	O
80	O
.	O
</s>
<s>
The	O
weather-sealed	O
D-BG4	O
battery	B-Algorithm
grip	I-Algorithm
that	O
fit	O
the	O
Pentax	B-Algorithm
K-7	I-Algorithm
can	O
also	O
be	O
used	O
on	O
the	O
Pentax	B-Algorithm
K-5	I-Algorithm
.	O
</s>
