<s>
The	O
Kodak	O
Digital	O
Camera	O
System	O
is	O
a	O
series	O
of	O
digital	B-Device
single-lens	I-Device
reflex	I-Device
cameras	I-Device
and	O
digital	B-Algorithm
camera	I-Algorithm
backs	I-Algorithm
that	O
were	O
released	O
by	O
Kodak	O
in	O
the	O
1990s	O
and	O
2000s	O
,	O
and	O
discontinued	O
in	O
2005	O
.	O
</s>
<s>
They	O
are	O
all	O
based	O
on	O
existing	O
35mm	O
film	O
SLRs	B-Algorithm
from	O
Nikon	B-Algorithm
,	O
Canon	O
and	O
Sigma	O
.	O
</s>
<s>
The	O
range	O
includes	O
the	O
original	O
Kodak	B-Device
DCS	I-Device
,	O
the	O
first	O
commercially	O
available	O
digital	B-Device
SLR	I-Device
.	O
</s>
<s>
In	O
1975	O
Kodak	O
engineer	O
Steven	O
Sasson	O
invented	O
the	O
first	O
digital	O
still	O
camera	O
,	O
which	O
uses	O
a	O
Fairchild	O
100	O
x	O
100	O
pixel	B-Algorithm
CCD	B-Algorithm
.	O
</s>
<s>
By	O
1986	O
Kodak	O
had	O
developed	O
a	O
sensor	O
with	O
1.4	O
million	O
pixels	B-Algorithm
.	O
</s>
<s>
A	O
number	O
of	O
other	O
inventions	O
were	O
made	O
to	O
increase	O
usability	O
,	O
including	O
improvements	O
in	O
sensor	O
technology	O
,	O
the	O
first	O
raw	B-Application
image	I-Application
format	I-Application
DCR	O
,	O
and	O
usable	O
host	O
software	O
.	O
</s>
<s>
The	O
original	O
Kodak	B-Device
DCS	I-Device
was	O
launched	O
in	O
1991	O
,	O
and	O
is	O
based	O
on	O
a	O
stock	O
Nikon	B-Algorithm
F3	I-Algorithm
SLR	B-Algorithm
with	O
digital	O
components	O
.	O
</s>
<s>
The	O
DCS	O
200	O
series	O
of	O
1992	O
condenses	O
the	O
storage	O
unit	O
into	O
a	O
module	O
which	O
mounted	O
onto	O
the	O
base	O
and	O
back	O
of	O
a	O
stock	O
Nikon	B-Algorithm
F-801s	I-Algorithm
SLR	B-Algorithm
.	O
</s>
<s>
It	O
was	O
followed	O
by	O
the	O
upgraded	O
DCS	O
400	O
series	O
of	O
1994	O
,	O
which	O
replaces	O
the	O
hard	O
drive	O
with	O
a	O
PCMCIA	B-Architecture
card	I-Architecture
slot	O
.	O
</s>
<s>
The	O
DCS	O
400	O
series	O
includes	O
the	O
1.5-megapixel	O
DCS	O
420	O
,	O
and	O
the	O
6-megapixel	O
Kodak	B-Device
DCS	I-Device
460	O
,	O
which	O
retailed	O
for	O
$	O
28,000	O
on	O
launch	O
.	O
</s>
<s>
In	O
parallel	O
with	O
the	O
DCS	O
400	O
series	O
Kodak	O
also	O
sold	O
the	O
analogous	O
Kodak	O
EOS	O
DCS	O
range	O
,	O
which	O
was	O
based	O
on	O
the	O
Canon	B-Algorithm
EOS-1N	I-Algorithm
SLR	B-Algorithm
.	O
</s>
<s>
With	O
the	O
exception	O
of	O
the	O
original	O
DCS	B-Device
100	I-Device
,	O
these	O
early	O
models	O
do	O
not	O
include	O
LCD	O
preview	O
screens	O
.	O
</s>
<s>
The	O
DCS	O
500	O
series	O
of	O
1998	O
is	O
also	O
based	O
on	O
the	O
Canon	B-Algorithm
EOS-1N	I-Algorithm
,	O
and	O
comprises	O
the	O
2-megapixel	O
DCS	O
520	O
and	O
the	O
6-megapixel	O
DCS	O
560	O
,	O
which	O
initially	O
had	O
a	O
suggested	O
retail	O
price	O
of	O
$	O
28,500	O
.	O
</s>
<s>
These	O
models	O
were	O
also	O
sold	O
by	O
Canon	O
,	O
as	O
the	O
Canon	O
D2000	O
and	O
D6000	B-Device
respectively	O
,	O
and	O
were	O
the	O
first	O
digital	B-Device
SLRs	I-Device
sold	O
under	O
the	O
Canon	O
name	O
.	O
</s>
<s>
Kodak	O
used	O
the	O
same	O
electronics	O
package	O
for	O
the	O
DCS	O
600	O
series	O
,	O
which	O
is	O
based	O
on	O
the	O
Nikon	B-Algorithm
F5	I-Algorithm
.	O
</s>
<s>
The	O
DCS	O
600	O
range	O
includes	O
the	O
Kodak	B-Device
DCS	I-Device
620x	O
,	O
a	O
high-sensitivity	O
model	O
with	O
an	O
upgraded	O
indium	O
tin	O
oxide	O
sensor	O
and	O
a	O
cyan-magenta-yellow	O
Bayer	B-Algorithm
filter	I-Algorithm
,	O
which	O
has	O
a	O
then-unique	O
top	O
ISO	O
setting	O
of	O
ISO	O
6400	O
.	O
</s>
<s>
By	O
the	O
time	O
of	O
launch	O
,	O
Kodak	O
faced	O
competition	O
from	O
the	O
popular	O
Nikon	B-Algorithm
D1	I-Algorithm
and	O
Nikon	B-Algorithm
D1x	O
,	O
which	O
were	O
physically	O
smaller	O
and	O
cheaper	O
.	O
</s>
<s>
Kodak	O
final	O
generation	O
of	O
DCS	O
cameras	O
was	O
launched	O
with	O
the	O
Kodak	B-Algorithm
DCS	I-Algorithm
Pro	I-Algorithm
14n	I-Algorithm
,	O
a	O
14-megapixel	O
full-frame	B-Algorithm
digital	I-Algorithm
SLR	I-Algorithm
,	O
in	O
2002	O
,	O
and	O
continued	O
with	O
the	O
upgraded	O
DCS	B-Algorithm
PRO	I-Algorithm
SLR/n	I-Algorithm
in	O
2004	O
.	O
</s>
<s>
These	O
two	O
cameras	O
are	O
based	O
on	O
a	O
Nikon	B-Algorithm
F80	I-Algorithm
body	O
,	O
and	O
are	O
considerably	O
more	O
compact	O
than	O
previous	O
Kodaks	O
.	O
</s>
<s>
The	O
DCS	B-Algorithm
PRO	I-Algorithm
SLR/n	I-Algorithm
was	O
also	O
accompanied	O
by	O
the	O
Canon-compatible	O
DCS	O
PRO	O
SLR/c	O
,	O
which	O
is	O
based	O
on	O
a	O
Sigma	O
SA9	O
SLR	B-Algorithm
.	O
</s>
<s>
Kodak	O
discontinued	O
the	O
SLR/n	O
and	O
SLR/c	O
in	O
May	O
2005	O
,	O
to	O
concentrate	O
on	O
compact	O
digital	O
cameras	O
and	O
high-end	O
medium	O
format	O
digital	B-Algorithm
backs	I-Algorithm
for	O
Leaf	O
,	O
among	O
others	O
.	O
</s>
<s>
Kodak	O
continued	O
to	O
design	O
and	O
manufacture	O
digital	O
imaging	O
sensors	O
,	O
including	O
the	O
full-frame	O
18-megapixel	O
KAF-18500	O
,	O
which	O
is	O
used	O
in	O
the	O
Leica	B-Algorithm
M9	I-Algorithm
digital	O
rangefinder	O
,	O
until	O
its	O
digital	O
sensor	O
division	O
was	O
sold	O
to	O
Platinum	O
Equity	O
in	O
2012	O
.	O
</s>
<s>
All	O
models	O
based	O
on	O
Nikon	B-Algorithm
body	O
and	O
use	O
Nikon	B-Algorithm
's	O
F	B-Architecture
mount	I-Architecture
.	O
</s>
<s>
Kodak	B-Device
DCS	I-Device
-	O
May	O
1991	O
,	O
later	O
called	O
DCS	B-Device
100	I-Device
,	O
first	O
commercially	O
available	O
DSLR	B-Device
camera	I-Device
,	O
Nikon	B-Algorithm
F3	I-Algorithm
based	O
body	O
.	O
</s>
<s>
Kodak	B-Device
DCS	I-Device
200	O
-	O
1993	O
,	O
Nikon	B-Algorithm
F-801s	I-Algorithm
(	O
N8008s	B-Algorithm
)	O
based	O
body	O
.	O
</s>
<s>
Kodak	O
NC2000	O
series	O
-	O
August	O
1994	O
,	O
Nikon	O
F90/N90	O
and	O
N90s	B-Algorithm
based	O
body	O
,	O
designed	O
in	O
speed	O
and	O
noise	O
characteristics	O
for	O
press	O
use	O
.	O
</s>
<s>
Kodak	B-Algorithm
DCS	I-Algorithm
Pro	I-Algorithm
14n	I-Algorithm
-	O
2002	O
,	O
Nikon	B-Algorithm
F80	I-Algorithm
based	O
body	O
,	O
full-frame	O
.	O
</s>
<s>
Kodak	B-Algorithm
DCS	I-Algorithm
Pro	I-Algorithm
14nx	I-Algorithm
variant	O
incorporates	O
updated	O
sensor	O
,	O
memory	O
buffer	O
and	O
firmware	O
from	O
DCS	B-Algorithm
Pro	I-Algorithm
SLR/n	I-Algorithm
.	O
</s>
<s>
Kodak	B-Algorithm
DCS	I-Algorithm
Pro	I-Algorithm
SLR/n	I-Algorithm
-	O
2004	O
,	O
Nikon	B-Algorithm
F80	I-Algorithm
based	O
body	O
,	O
full-frame	O
.	O
</s>
<s>
All	O
models	O
use	O
Canon	O
's	O
EF	B-Application
lens	I-Application
mount	I-Application
.	O
</s>
<s>
Kodak	O
EOS	O
DCS	O
series	O
-	O
1995	O
,	O
Canon	B-Algorithm
EOS-1n	I-Algorithm
based	O
body	O
.	O
</s>
<s>
Rebranded	O
by	O
Canon	O
as	O
EOS	B-Device
DCS	I-Device
1	I-Device
,	O
-3	B-Device
and	O
-5	B-Device
.	O
</s>
<s>
Kodak	B-Device
DCS	I-Device
500	O
series	O
-	O
1998	O
,	O
Canon	B-Algorithm
EOS-1n	I-Algorithm
based	O
body	O
.	O
</s>
<s>
Kodak	B-Algorithm
DCS	I-Algorithm
Pro	I-Algorithm
SLR/c	I-Algorithm
-	O
2004	O
,	O
Sigma	O
SA9	O
,	O
with	O
Canon	B-Application
EF	I-Application
compatible	O
mount	O
and	O
electronics	O
.	O
</s>
<s>
Kodak	B-Device
DCS	I-Device
Pro	O
Back	O
/	O
Plus	O
/	O
645	O
-	O
2000	O
,	O
16-megapixel	O
digital	B-Algorithm
camera	I-Algorithm
back	I-Algorithm
for	O
several	O
medium	O
format	O
cameras	O
.	O
</s>
