<s>
The	O
Fujifilm	B-Device
FinePix	I-Device
S1	I-Device
Pro	I-Device
was	O
an	O
interchangeable	O
lens	O
digital	B-Device
single-lens	I-Device
reflex	I-Device
camera	I-Device
introduced	O
in	O
January	O
2000	O
.	O
</s>
<s>
It	O
was	O
based	O
on	O
a	O
Nikon	B-Algorithm
F60	I-Algorithm
(	O
Nikon	B-Algorithm
N60	I-Algorithm
in	O
the	O
U.S.	O
)	O
film	O
camera	O
body	O
that	O
was	O
modified	O
by	O
Fujifilm	O
to	O
include	O
its	O
own	O
proprietary	O
image	B-Algorithm
sensor	I-Algorithm
and	O
electronics	O
.	O
</s>
<s>
Because	O
of	O
the	O
Nikon	B-Algorithm
body	O
,	O
it	O
had	O
a	O
Nikon	B-Algorithm
F	I-Algorithm
lens	O
mount	O
and	O
so	O
could	O
use	O
most	O
lenses	O
made	O
for	O
Nikon	B-Algorithm
35	O
mm	O
cameras	O
.	O
</s>
<s>
The	O
camera	O
is	O
no	O
longer	O
in	O
production	O
,	O
having	O
been	O
superseded	O
by	O
the	O
Fujifilm	B-Device
FinePix	I-Device
S2	I-Device
Pro	I-Device
in	O
January	O
2002	O
.	O
</s>
<s>
Aside	O
from	O
the	O
Nikon	B-Algorithm
lens	O
mount	O
,	O
the	O
camera	O
's	O
principal	O
distinction	O
was	O
its	O
unique	O
(	O
and	O
controversial	O
)	O
3.1	O
megapixel	O
photo	O
sensor	O
.	O
</s>
<s>
Known	O
as	O
the	O
Super	B-Algorithm
CCD	I-Algorithm
,	O
it	O
was	O
unique	O
in	O
having	O
its	O
photodiodes	O
oriented	O
diagonally	O
rather	O
than	O
horizontally	O
and	O
vertically	O
as	O
in	O
all	O
other	O
SLR	B-Device
cameras	O
.	O
</s>
<s>
This	O
allowed	O
the	O
use	O
of	O
a	O
sophisticated	O
interpolation	B-Algorithm
system	O
that	O
produced	O
an	O
output	O
image	O
equivalent	O
to	O
6.2	O
megapixels	O
.	O
</s>
