<s>
The	O
Leica	B-Algorithm
S-System	I-Algorithm
is	O
a	O
medium	O
format	O
digital	B-Device
single	I-Device
lens	I-Device
reflex	I-Device
camera	I-Device
system	O
introduced	O
by	O
Leica	O
Camera	O
in	O
1996	O
.	O
</s>
<s>
The	O
software	O
for	O
the	O
S1	O
is	O
a	O
special	O
SilverFast	B-Operating_System
version	O
,	O
originally	O
developed	O
by	O
LaserSoft	O
Imaging	O
for	O
high-end	O
scanners	B-Application
.	O
</s>
<s>
Leica	B-Algorithm
S2	I-Algorithm
–	O
In	O
2008	O
,	O
Leica	O
announced	O
plans	O
to	O
offer	O
an	O
S-System	O
–	O
DSLR	B-Device
with	O
a	O
Kodak-made	O
custom	O
CCD	B-Algorithm
image	B-Algorithm
sensor	I-Algorithm
measuring	O
30×45mm	O
and	O
containing	O
37	O
million	O
pixels	O
.	O
</s>
<s>
This	O
sensor	O
has	O
a	O
26%	O
longer	O
diagonal	O
and	O
56%	O
larger	O
area	O
than	O
a	O
"	O
full-frame	O
″	O
24×36	O
mm	O
DSLR	B-Device
sensor	O
and	O
outputs	O
an	O
approximately	O
5000x7500	O
pixel	O
image	O
.	O
</s>
<s>
The	O
Leica	B-Algorithm
S2	I-Algorithm
is	O
thus	O
essentially	O
a	O
medium	O
format	O
camera	O
in	O
a	O
"	O
35	O
mm	O
SLR	B-Algorithm
"	O
-sized	O
body	O
.	O
</s>
<s>
The	O
new	O
"	O
Maestro	O
"	O
image	B-General_Concept
processor	I-General_Concept
used	O
in	O
the	O
S2	O
was	O
developed	O
by	O
Fujitsu	O
based	O
on	O
the	O
Milbeaut	B-General_Concept
and	O
the	O
autofocus	O
system	O
(	O
Leica	O
's	O
first	O
to	O
see	O
production	O
)	O
was	O
developed	O
in	O
house	O
.	O
</s>
<s>
Leica	B-Device
S	I-Device
(	O
Typ	O
006	O
)	O
–	O
Leica	O
announced	O
the	O
Leica	B-Device
S	I-Device
(	O
Typ	O
006	O
)	O
in	O
September	O
2012	O
.	O
</s>
<s>
It	O
replaces	O
the	O
Leica	B-Algorithm
S2	I-Algorithm
,	O
having	O
a	O
new	O
sensor	O
board	O
with	O
improved	O
noise	O
characteristics	O
.	O
</s>
<s>
Leica	B-Device
S	I-Device
(	O
Typ	O
007	O
)	O
–	O
Leica	O
announced	O
the	O
Leica	B-Device
S	I-Device
(	O
Typ	O
007	O
)	O
in	O
September	O
2014	O
.	O
</s>
<s>
It	O
replaces	O
the	O
Typ	O
006	O
's	O
CCD	B-Algorithm
with	O
a	O
new	O
CMOS	B-Architecture
image	I-Architecture
sensor	I-Architecture
.	O
</s>
<s>
It	O
offers	O
improved	O
noise	O
characteristics	O
,	O
stills	O
at	O
3.5	O
frames/second	O
,	O
and	O
4K	B-Architecture
video	I-Architecture
.	O
</s>
