<s>
The	O
PowerShot	B-Algorithm
Pro1	I-Algorithm
is	O
a	O
digital	B-Device
camera	I-Device
made	O
by	O
Canon	O
,	O
announced	O
in	O
February	O
2004	O
and	O
was	O
discontinued	O
first	O
quarter	O
of	O
2006	O
.	O
</s>
<s>
It	O
uses	O
a	O
Sony-built	O
2/3	O
in	O
(	O
17mm	O
)	O
8.3	O
megapixel	O
CCD	B-Algorithm
image	B-Algorithm
sensor	I-Algorithm
,	O
which	O
gives	O
a	O
usable	O
image	O
size	O
of	O
approximately	O
8.0	O
megapixels	O
.	O
</s>
<s>
It	O
was	O
the	O
most	O
expensive	O
fixed-lens	O
camera	O
sold	O
by	O
Canon	O
at	O
the	O
time	O
,	O
and	O
thus	O
the	O
top	O
of	O
the	O
PowerShot	B-Algorithm
range	O
.	O
</s>
<s>
It	O
was	O
the	O
first	O
fixed	O
lens	O
designated	O
a	O
Canon	O
L	O
series	O
lens	O
,	O
a	O
designation	O
normally	O
reserved	O
for	O
expensive	O
EF-series	B-Application
SLR	O
lenses	O
.	O
</s>
<s>
It	O
has	O
a	O
variable-angle	O
two-inch	O
,	O
polycrystalline	O
silicon	O
,	O
thin-film	O
transistor	O
,	O
color	O
liquid	B-Device
crystal	I-Device
display	I-Device
with	O
approximately	O
235,000	O
pixels	O
and	O
a	O
colour	O
electronic	B-Algorithm
viewfinder	I-Algorithm
(	O
EVF	O
)	O
with	O
the	O
same	O
resolution	O
.	O
</s>
