<s>
The	O
Canon	B-Algorithm
EOS	I-Algorithm
5	I-Algorithm
(	O
sold	O
as	O
the	O
EOS	B-Algorithm
A2	O
and	O
A2e	O
in	O
the	O
USA	O
)	O
is	O
a	O
semi-professional	O
autofocus	O
,	O
autoexposure	O
35	O
mm	O
SLR	B-Algorithm
film	O
camera	O
.	O
</s>
<s>
It	O
was	O
sold	O
from	O
November	O
1992	O
onwards	O
,	O
and	O
was	O
replaced	O
in	O
late	O
1998	O
by	O
the	O
Canon	B-Algorithm
EOS	I-Algorithm
3	I-Algorithm
.	O
</s>
<s>
As	O
part	O
of	O
the	O
EOS	B-Algorithm
line	O
of	O
cameras	O
,	O
the	O
5/A2/A2e	O
utilized	O
Canon	O
's	O
EF	B-Application
bayonet	I-Application
lens	B-Algorithm
mount	I-Algorithm
,	O
first	O
introduced	O
in	O
1987	O
.	O
</s>
<s>
The	O
camera	O
was	O
powered	O
by	O
a	O
6	O
volt	O
lithium	B-Language
2CR5	O
battery	O
,	O
or	O
,	O
with	O
the	O
optional	O
Canon	O
BP-5	O
Battery	O
Pack	O
,	O
could	O
be	O
powered	O
by	O
D	B-Algorithm
batteries	I-Algorithm
attached	O
to	O
the	O
belt	O
of	O
the	O
user	O
.	O
</s>
<s>
The	O
Canon	O
VG-10	O
Vertical	O
Grip	O
added	O
a	O
shutter	O
release	O
,	O
control	O
wheel	O
,	O
AE	O
Lock	O
button	O
and	O
Focus	O
Point	O
Selection	O
button	O
to	O
the	O
bottom	O
of	O
the	O
camera	O
for	O
portrait	O
orientation	O
use	O
,	O
but	O
did	O
not	O
add	O
AA	B-Algorithm
batteries	I-Algorithm
as	O
a	O
power	O
source	O
.	O
</s>
<s>
The	O
Canon	B-Algorithm
EOS	I-Algorithm
5/A2/A2e	I-Algorithm
had	O
three	O
built-in	O
metering	B-Algorithm
modes	I-Algorithm
;	O
Evaluative	O
,	O
center-weight	O
average	O
and	O
spot	O
.	O
</s>
<s>
The	O
EOS	B-Algorithm
5/A2e	O
featured	O
eye-controlled	O
focusing	O
,	O
which	O
allowed	O
the	O
user	O
to	O
select	O
from	O
one	O
of	O
five	O
focus	O
points	O
by	O
looking	O
at	O
it	O
through	O
the	O
viewfinder	O
as	O
well	O
as	O
activating	O
depth-of-field	O
preview	O
by	O
looking	O
at	O
a	O
sixth	O
point	O
marked	O
in	O
the	O
top-left	O
corner	O
of	O
the	O
viewfinder	O
.	O
</s>
<s>
Although	O
the	O
EOS	B-Algorithm
5	O
had	O
an	O
optional	O
vertical	O
grip	O
,	O
the	O
VG-10	O
,	O
the	O
eye-controlled	O
focussing	O
feature	O
only	O
worked	O
when	O
the	O
camera	O
was	O
held	O
in	O
horizontal	O
orientation	O
.	O
</s>
<s>
The	O
dial	O
above	O
the	O
shutter	O
button	O
will	O
adjust	O
the	O
shutter	O
speed	O
in	O
shutter	B-Algorithm
priority	I-Algorithm
TV/Time	O
value	O
mode	O
,	O
but	O
in	O
aperture	B-Algorithm
priority	I-Algorithm
Av/Aperture	O
value	O
mode	O
this	O
same	O
dial	O
will	O
adjust	O
the	O
lens	O
aperture	O
.	O
</s>
<s>
At	O
the	O
time	O
of	O
the	O
camera	O
's	O
production	O
,	O
there	O
was	O
a	O
U.S.	O
patent	O
on	O
the	O
use	O
of	O
a	O
digital	O
scale	O
to	O
show	O
under	O
-	O
or	O
over-exposure	O
in	O
a	O
metered-manual	O
SLR	B-Algorithm
.	O
</s>
<s>
The	O
European/Japanese	O
market	O
EOS	B-Algorithm
5	O
had	O
the	O
scale	O
and	O
on	O
account	O
of	O
this	O
many	O
American	O
photographers	O
preferred	O
the	O
imported	O
model	O
.	O
</s>
<s>
This	O
is	O
a	O
firmware	O
difference	O
only	O
,	O
and	O
there	O
is	O
at	O
least	O
one	O
third-party	O
firm	O
which	O
will	O
install	O
EOS	B-Algorithm
5	O
firmware	O
on	O
an	O
A2/A2e	O
,	O
thereby	O
adding	O
this	O
scale	O
.	O
</s>
