<s>
The	O
EOS-1D	B-Algorithm
Mark	I-Algorithm
IV	I-Algorithm
is	O
a	O
professional	O
16.1	O
effective	O
megapixels	O
digital	B-Device
single	I-Device
lens	I-Device
reflex	I-Device
camera	I-Device
(	O
DSLR	B-Device
)	O
camera	B-Algorithm
body	I-Algorithm
produced	O
by	O
Canon	O
.	O
</s>
<s>
The	O
EOS-1D	B-Algorithm
Mark	I-Algorithm
IV	I-Algorithm
is	O
the	O
successor	O
of	O
the	O
Canon	B-Algorithm
EOS-1D	I-Algorithm
Mark	I-Algorithm
III	I-Algorithm
and	O
was	O
announced	O
on	O
20	O
October	O
2009	O
,	O
just	O
four	O
days	O
after	O
Nikon	O
announced	O
the	O
D3s	B-Algorithm
.	O
</s>
<s>
It	O
used	O
to	O
be	O
the	O
only	O
Canon	O
APS-H	O
format	O
DSLR	B-Device
to	O
feature	O
HD	O
video	O
recording	O
at	O
1080p	O
resolution	O
.	O
</s>
<s>
It	O
was	O
discontinued	O
in	O
mid-2012	O
with	O
the	O
introduction	O
of	O
the	O
Canon	B-Algorithm
EOS-1D	I-Algorithm
X	I-Algorithm
,	O
which	O
replaced	O
both	O
the	O
EOS-1D	O
Mk	O
IV	O
and	O
the	O
EOS-1Ds	B-Algorithm
Mk	I-Algorithm
III	I-Algorithm
.	O
</s>
<s>
121	O
frames	O
,	O
raw	B-Application
:	O
max	O
.	O
</s>
