<s>
The	O
Arri	B-Algorithm
Alexa	I-Algorithm
is	O
a	O
digital	O
motion	O
picture	O
camera	O
system	O
developed	O
by	O
Arri	O
.	O
</s>
<s>
First	O
introduced	O
in	O
April	O
2010	O
,	O
the	O
camera	O
was	O
Arri	O
's	O
first	O
major	O
transition	O
into	O
digital	O
cinematography	O
after	O
previous	O
efforts	O
such	O
as	O
the	O
Arriflex	B-Device
D-20	I-Device
and	O
D-21	O
.	O
</s>
<s>
The	O
Alexa	O
camera	O
system	O
introduced	O
their	O
Log-C	O
imaging	O
science	O
as	O
a	O
digital	O
negative	O
to	O
make	O
digital	O
cinema	O
images	O
process	O
like	O
scanned	B-Device
film	I-Device
images	O
.	O
</s>
<s>
The	O
camera	O
has	O
several	O
methods	O
of	O
recording	O
,	O
including	O
SxS	B-Device
cards	I-Device
,	O
CFast	O
2.0	O
cards	O
and	O
SXR	O
Capture	O
Drives	O
at	O
resolutions	O
up	O
to	O
3424	O
×	O
2202	O
pixels	O
in	O
either	O
Rec	O
.	O
</s>
<s>
709	O
HD	O
Video	O
color	B-Algorithm
space	I-Algorithm
or	O
Log-C	O
to	O
ProRes	B-Algorithm
or	O
ARRIRAW	O
codecs	O
.	O
</s>
<s>
The	O
Alexa	O
camera	O
offers	O
additional	O
optional	O
software	B-License
licenses	I-License
that	O
unlock	O
different	O
capabilities	O
of	O
the	O
Alexa	O
Camera	O
including	O
High	O
Speed	O
120fps	O
recording	O
,	O
DNxHD	O
codec	O
and	O
4:3	O
"	O
Open	O
Gate	O
"	O
Mode	O
for	O
anamorphic	O
lenses	O
.	O
</s>
<s>
The	O
Alexa	O
camera	O
system	O
includes	O
modularity	O
,	O
PL	O
mount	O
lenses	O
,	O
a	O
Super	O
35	O
sized	O
CMOS	B-Architecture
sensor	I-Architecture
shooting	O
up	O
to	O
3424×2202	O
resolution	O
and	O
supports	O
uncompressed	B-Device
video	I-Device
or	O
proprietary	O
raw	B-Application
(	O
ARRIRAW	O
)	O
codec	O
.	O
</s>
<s>
The	O
price	O
of	O
the	O
camera	O
depends	O
on	O
model	O
and	O
accessories	O
;	O
as	O
an	O
example	O
in	O
2015	O
an	O
Arri	B-Algorithm
Alexa	I-Algorithm
XT	O
cost	O
approximately	O
$	O
66,000	O
-100	O
,	O
000	O
,	O
depending	O
on	O
accessories	O
included	O
.	O
</s>
<s>
This	O
range	O
is	O
upgraded	O
versions	O
of	O
the	O
original	O
Alexa	O
cameras	O
,	O
which	O
are	O
equipped	O
with	O
a	O
so-called	O
XR	O
module	O
,	O
which	O
replaces	O
the	O
SxS	B-Device
module	O
on	O
the	O
cameras	O
,	O
and	O
allows	O
direct	O
raw	B-Application
recording	O
without	O
the	O
need	O
for	O
an	O
external	O
recorder	O
.	O
</s>
<s>
Existing	O
cameras	O
can	O
be	O
upgraded	O
with	O
the	O
XR	O
module	O
for	O
internal	O
raw	B-Application
recording	O
.	O
</s>
<s>
On	O
18	O
March	O
2015	O
,	O
Arri	O
announced	O
the	O
SXT	O
line	O
of	O
Arri	B-Algorithm
Alexa	I-Algorithm
cameras	O
which	O
will	O
support	O
in-camera	O
upscaling	O
of	O
Apple	B-Algorithm
ProRes	I-Algorithm
to	O
4K	O
resolution	O
and	O
Rec	O
.	O
</s>
<s>
2020	O
color	B-Algorithm
space	I-Algorithm
.	O
</s>
<s>
The	O
Arri	B-Algorithm
Alexa	I-Algorithm
can	O
record	O
to	O
1920×1080	O
ProRes	B-Algorithm
422	O
or	O
ProRes	B-Algorithm
4444	O
on	O
SxS	B-Device
Cards	I-Device
or	O
2880×1620	O
ARRIRAW	O
to	O
external	O
recording	O
devices	O
.	O
</s>
<s>
ArriRaw	O
is	O
a	O
raw	B-Application
codec	O
similar	O
to	O
CinemaDNG	O
that	O
contains	O
unaltered	O
Bayer	B-Algorithm
sensor	I-Algorithm
information	O
.	O
</s>
<s>
According	O
to	O
cinematographer	O
Roger	O
Deakins	O
,	O
Alexa	O
's	O
tonal	O
range	O
,	O
color	B-Algorithm
space	I-Algorithm
,	O
and	O
latitude	O
exceed	O
the	O
capabilities	O
of	O
shooting	O
in	O
film	O
.	O
</s>
<s>
Deakins	O
used	O
the	O
camera	O
to	O
shoot	O
In	O
Time	O
,	O
the	O
James	O
Bond	O
film	O
Skyfall	B-Error_Name
,	O
Prisoners	O
,	O
Unbroken	O
,	O
Sicario	O
,	O
The	O
Goldfinch	O
,	O
Empire	O
of	O
Light	O
,	O
and	O
the	O
Academy	O
Award	O
for	O
Best	O
Cinematography	O
winners	O
Blade	O
Runner	O
2049	O
and	O
1917	O
.	O
</s>
