<s>
The	O
Nikon	O
D2H	O
is	O
a	O
professional-grade	O
digital	B-Device
single-lens	I-Device
reflex	I-Device
camera	I-Device
introduced	O
by	O
Nikon	O
Corporation	O
on	O
July	O
22	O
,	O
2003	O
.	O
</s>
<s>
In	O
2005	O
,	O
the	O
D2H	O
was	O
replaced	O
by	O
the	O
D2Hs	O
,	O
which	O
added	O
new	O
features	O
derived	O
from	O
the	O
12-megapixel	O
D2X	B-Algorithm
digital	B-Device
SLR	I-Device
.	O
</s>
<s>
The	O
D2Hs	O
was	O
discontinued	O
after	O
the	O
introduction	O
of	O
the	O
D300	B-Algorithm
and	O
D3	B-Algorithm
models	O
.	O
</s>
<s>
Like	O
most	O
early	O
Nikon	O
Digital	B-Device
SLR	I-Device
cameras	I-Device
,	O
it	O
uses	O
a	O
"	O
DX	O
Format	O
"	O
sensor	O
,	O
which	O
applies	O
a	O
crop	O
factor	O
compared	O
to	O
35	O
mm	O
film	O
of	O
approximately	O
1.5	O
×	O
.	O
</s>
<s>
Like	O
the	O
D2X	B-Algorithm
,	O
it	O
features	O
a	O
recent	O
settings	O
list	O
,	O
world	O
time	O
function	O
,	O
and	O
modified	O
vertical	O
shooting	O
buttons	O
and	O
CompactFlash	B-Device
card	I-Device
door	O
opening	O
.	O
</s>
<s>
The	O
D2Hs	O
,	O
like	O
the	O
D2X	B-Algorithm
,	O
offers	O
compatibility	O
with	O
Non-CPU	O
AI	O
Nikkor	O
lenses	O
,	O
which	O
are	O
usable	O
in	O
aperture-priority	O
or	O
manual	O
exposure	O
mode	O
with	O
Matrix-Metering	O
,	O
Center-Weighted	O
and	O
Spot	O
metering	O
available	O
.	O
</s>
