<s>
The	O
Sigma	B-Algorithm
SD14	I-Algorithm
is	O
a	O
digital	B-Device
single-lens	I-Device
reflex	I-Device
camera	I-Device
produced	O
by	O
the	O
Sigma	O
Corporation	O
of	O
Japan	O
.	O
</s>
<s>
It	O
is	O
fitted	O
with	O
a	O
Sigma	B-Algorithm
SA	I-Algorithm
mount	I-Algorithm
which	O
takes	O
Sigma	B-Algorithm
SA	I-Algorithm
lenses	O
.	O
</s>
<s>
Unlike	O
most	O
consumer	O
cameras	O
,	O
which	O
use	O
color	O
sensors	O
based	O
on	O
a	O
Bayer	B-Algorithm
color	I-Algorithm
array	I-Algorithm
,	O
the	O
SD14	O
uses	O
a	O
Foveon	B-Algorithm
X3	I-Algorithm
sensor	I-Algorithm
.	O
</s>
<s>
The	O
camera	O
uses	O
the	O
SA	B-Algorithm
mount	I-Algorithm
,	O
for	O
which	O
only	O
Sigma	O
itself	O
manufactures	O
lenses	O
.	O
</s>
<s>
The	O
SA	B-Algorithm
mount	I-Algorithm
is	O
physically	O
identical	O
to	O
the	O
PK	O
mount	O
with	O
a	O
reduced	O
back-focus	O
of	O
44.0mm	O
(	O
equals	O
Canon	O
EOS	O
)	O
as	O
opposed	O
to	O
the	O
45.5mm	O
of	O
Pentax	O
PK	O
and	O
M42	B-Algorithm
.	O
</s>
<s>
The	O
Sigma	B-Algorithm
SA	I-Algorithm
lens	O
protocol	O
is	O
a	O
clone	O
of	O
the	O
Canon	B-Application
EF	I-Application
protocol	O
.	O
</s>
<s>
This	O
provides	O
the	O
ability	O
for	O
most	O
Canon	B-Application
EF-mount	I-Application
lenses	O
to	O
work	O
seamlessly	O
after	O
exchanging	O
the	O
mount	O
plate	O
with	O
the	O
Sigma	O
DSLRs	B-Device
,	O
but	O
without	O
image	O
stabilization	O
.	O
</s>
<s>
Pentax	B-Algorithm
K-mount	I-Algorithm
lenses	O
physically	O
fit	O
,	O
but	O
should	O
only	O
be	O
mounted	O
when	O
the	O
rear	O
protrusions	O
have	O
been	O
dismantled	O
.	O
</s>
<s>
of	O
decopperized	O
FR3	O
1.5mm	O
circuit	O
board	O
)	O
can	O
be	O
added	O
between	O
the	O
K-mount	B-Algorithm
lens	O
body	O
and	O
its	O
bayonet	O
plate	O
.	O
</s>
<s>
The	O
spring	O
that	O
opens	O
or	O
closes	O
the	O
lens	O
iris	O
in	O
the	O
K-mount	B-Algorithm
lenses	O
may	O
have	O
to	O
be	O
reset	O
to	O
work	O
in	O
the	O
opposite	O
direction	O
.	O
</s>
<s>
Although	O
the	O
Nikon	B-Architecture
F-mount	I-Architecture
back-focus	O
at	O
46.5mm	O
is	O
well	O
above	O
the	O
44mm	O
of	O
the	O
SD14	O
,	O
there	O
is	O
no	O
adapter	O
for	O
the	O
infinity	O
focusing	O
possible	O
as	O
,	O
unlike	O
with	O
Canon	O
EOS	O
,	O
the	O
Nikon	O
bayonet	O
of	O
roughly	O
the	O
same	O
diameter	O
will	O
not	O
fit	O
inside	O
the	O
SA	O
–	O
PK	O
bayonet	O
.	O
</s>
<s>
The	O
M42	B-Algorithm
thread	O
does	O
,	O
as	O
taken	O
care	O
of	O
by	O
Asahi	O
when	O
introducing	O
K	B-Algorithm
mount	I-Algorithm
in	O
the	O
1970s	O
,	O
and	O
therefore	O
all	O
M42	B-Algorithm
lenses	O
work	O
as	O
is	O
without	O
problems	O
with	O
the	O
SA/M42	O
converter	O
.	O
</s>
<s>
Due	O
to	O
the	O
good	O
quality	O
viewfinder	O
(	O
for	O
a	O
crop-DSLR	O
)	O
of	O
the	O
SD14	O
the	O
missing	O
auto-iris	O
is	O
not	O
a	O
problem	O
,	O
and	O
primes	O
from	O
45mm	O
up	O
focus	O
comfortably	O
on	O
the	O
screen	O
down	O
to	O
f/5.6	O
.	O
</s>
<s>
The	O
camera	O
has	O
a	O
new	O
body	O
design	O
with	O
more	O
rounded	O
corners	O
and	O
is	O
a	O
little	O
smaller	O
than	O
its	O
predecessors	O
,	O
the	O
SD10	B-Algorithm
and	O
SD9	B-Algorithm
.	O
</s>
<s>
Like	O
the	O
previous	O
models	O
,	O
it	O
uses	O
a	O
Foveon	B-Algorithm
X3	I-Algorithm
direct	O
image	O
sensor	O
,	O
this	O
time	O
with	O
an	O
improved	O
pixel	O
count	O
of	O
2652	O
×	O
1768	O
×	O
3	O
photo-elements	O
(	O
4.7	O
million	O
locations	O
,	O
14.1	O
million	O
total	O
photo-elements	O
)	O
.	O
</s>
<s>
Similarly	O
,	O
companies	O
selling	O
Bayer	B-Algorithm
sensor	I-Algorithm
cameras	O
also	O
count	O
single-color	O
sensor	O
elements	O
as	O
pixels	O
,	O
as	O
does	O
Fujifilm	O
with	O
its	O
Super	B-Algorithm
CCD	I-Algorithm
cameras	O
,	O
in	O
which	O
both	O
large	O
and	O
small	O
photo-sensors	O
under	O
the	O
same	O
color	O
filter	O
and	O
microlens	O
are	O
counted	O
as	O
pixels	O
.	O
</s>
<s>
Other	O
improvements	O
over	O
the	O
previous	O
design	O
include	O
a	O
built-in	O
,	O
pop-up	O
flash	O
,	O
FAT32	B-Application
support	O
for	O
larger-capacity	O
CompactFlash	B-Device
storage	O
cards	O
,	O
a	O
higher	O
continuous	O
shooting	O
speed	O
of	O
3	O
frames	O
per	O
second	O
,	O
an	O
upgraded	O
auto	O
focus	O
system	O
with	O
5	O
sensors	O
,	O
an	O
AF	O
assist	O
lamp	O
,	O
an	O
improved	O
viewfinder	O
with	O
a	O
0.9	O
×	O
magnification	O
,	O
an	O
almost	O
silent	O
and	O
more	O
durable	O
shutter	O
rated	O
at	O
100,000	O
actuations	O
,	O
a	O
larger	O
2.5	O
"	O
LCD	B-Device
monitor	I-Device
,	O
a	O
USB	O
2.0	O
interface	O
(	O
but	O
no	O
FireWire	B-Protocol
interface	O
anymore	O
)	O
,	O
and	O
a	O
proprietary	O
rechargeable	O
(	O
Minolta	O
NP-400	O
compatible	O
)	O
lithium	O
ion	O
battery	O
system	O
with	O
a	O
claimed	O
500	O
shot	O
capacity	O
(	O
user	O
experience	O
puts	O
it	O
closer	O
to	O
150-200	O
)	O
.	O
</s>
<s>
Sigma	O
has	O
also	O
revised	O
the	O
infrared	O
filter	O
(	O
dust	O
protector	O
)	O
;	O
it	O
is	O
now	O
a	O
round	O
snap-in	O
design	O
rather	O
than	O
the	O
square	O
,	O
sturdier	O
screw-in	O
version	O
of	O
the	O
SD10	B-Algorithm
.	O
</s>
<s>
The	O
camera	O
can	O
output	O
a	O
raw	B-Application
file	I-Application
size	O
of	O
14.1	O
million	O
sample	O
values	O
,	O
organized	O
as	O
2652	O
×	O
1768	O
×	O
3	O
,	O
or	O
a	O
JPEG	O
image	O
up	O
to	O
14	O
megapixels	O
,	O
or	O
4608	O
×	O
3072	O
(	O
interpolated	O
)	O
pixels	O
.	O
</s>
<s>
In	O
the	O
raw	B-Application
file	I-Application
,	O
each	O
of	O
4.7	O
million	O
triples	O
of	O
digitized	O
data	O
from	O
the	O
sensor	O
contains	O
three	O
measurements	O
taken	O
at	O
three	O
different	O
depths	O
within	O
the	O
silicon	O
chip	O
.	O
</s>
<s>
This	O
is	O
in	O
contrast	O
to	O
the	O
approach	O
utilized	O
in	O
a	O
Bayer	B-Algorithm
sensor	I-Algorithm
,	O
which	O
can	O
only	O
measure	O
one	O
color	O
channel	O
at	O
each	O
location	O
,	O
and	O
must	O
interpolate	O
the	O
remaining	O
color	O
information	O
based	O
on	O
the	O
neighboring	O
values	O
.	O
</s>
<s>
Version	O
6.x	O
is	O
free	O
Download	O
for	O
Windows	O
7+	O
and	O
Mac	B-Application
OS	I-Application
Version	O
10.7	O
+	O
(	O
6.3.x	O
)	O
.	O
</s>
