<s>
The	O
EOS-1Ds	B-Algorithm
Mark	I-Algorithm
II	I-Algorithm
is	O
a	O
digital	B-Algorithm
SLR	I-Algorithm
camera	B-Algorithm
body	I-Algorithm
introduced	O
by	O
Canon	O
Inc	O
.	O
in	O
2004	O
.	O
</s>
<s>
It	O
was	O
the	O
top	O
model	O
in	O
the	O
Canon	B-Algorithm
EOS	I-Algorithm
line	O
of	O
digital	O
cameras	O
until	O
April	O
2007	O
,	O
with	O
a	O
full-frame	B-Algorithm
16.7	O
megapixel	O
CMOS	B-Device
sensor	O
.	O
</s>
<s>
The	O
EOS-1Ds	B-Algorithm
Mark	I-Algorithm
II	I-Algorithm
had	O
the	O
highest	O
pixel	O
count	O
available	O
in	O
a	O
35mm	O
format	O
digital	B-Algorithm
SLR	I-Algorithm
at	O
the	O
time	O
of	O
its	O
introduction	O
until	O
its	O
successor	O
was	O
announced	O
in	O
August	O
2007	O
.	O
</s>
<s>
It	O
uses	O
the	O
EF	B-Application
lens	I-Application
mount	I-Application
.	O
</s>
<s>
The	O
EOS-1Ds	B-Algorithm
Mark	I-Algorithm
II	I-Algorithm
is	O
a	O
professional	O
grade	O
camera	B-Algorithm
body	I-Algorithm
and	O
is	O
large	O
,	O
ruggedly	O
built	O
,	O
and	O
dust/weather	O
-resistant	O
.	O
</s>
<s>
It	O
also	O
has	O
a	O
2	O
"	O
,	O
TFT	O
color	B-Device
LCD	I-Device
.	O
</s>
<s>
The	O
camera	O
's	O
image	O
sensor	O
is	O
a	O
single-plate	O
CMOS-based	O
integrated	O
circuit	O
,	O
24mm	O
×	O
36mm	O
in	O
size	O
;	O
the	O
same	O
as	O
35mm	O
film	O
.	O
</s>
<s>
On	O
20	O
August	O
2007	O
,	O
Canon	O
announced	O
the	O
successor	O
to	O
the	O
Mark	O
II	O
:	O
the	O
Canon	B-Algorithm
EOS-1Ds	I-Algorithm
Mark	I-Algorithm
III	I-Algorithm
.	O
</s>
