<s>
Canon	B-Algorithm
EOS	I-Algorithm
(	O
Electro-Optical	O
System	O
)	O
is	O
an	O
autofocus	O
single-lens	B-Algorithm
reflex	I-Algorithm
camera	I-Algorithm
(	O
SLR	B-Algorithm
)	O
and	O
mirrorless	B-Device
camera	I-Device
series	O
produced	O
by	O
Canon	O
Inc	O
.	O
</s>
<s>
Introduced	O
in	O
1987	O
with	O
the	O
Canon	B-Algorithm
EOS	I-Algorithm
650	I-Algorithm
,	O
all	O
EOS	B-Algorithm
cameras	I-Algorithm
used	O
35	O
mm	O
film	O
until	O
October	O
1996	O
when	O
the	O
EOS	B-Algorithm
IX	I-Algorithm
was	O
released	O
using	O
the	O
new	O
and	O
short-lived	O
APS	O
film	O
.	O
</s>
<s>
In	O
2000	O
,	O
the	O
D30	B-Device
was	O
announced	O
,	O
as	O
the	O
first	O
digital	B-Device
SLR	I-Device
designed	O
and	O
produced	O
entirely	O
by	O
Canon	O
.	O
</s>
<s>
Since	O
2005	O
,	O
all	O
newly	O
announced	O
EOS	B-Algorithm
cameras	I-Algorithm
have	O
used	O
digital	B-Algorithm
image	I-Algorithm
sensors	I-Algorithm
rather	O
than	O
film	O
.	O
</s>
<s>
The	O
EOS	O
line	O
is	O
still	O
in	O
production	O
as	O
Canon	O
's	O
current	O
digital	B-Device
SLR	I-Device
(	O
DSLR	B-Device
)	O
range	O
,	O
and	O
,	O
with	O
the	O
2012	O
introduction	O
of	O
the	O
Canon	B-Algorithm
EOS	I-Algorithm
M	I-Algorithm
,	O
Canon	O
's	O
mirrorless	B-Device
interchangeable-lens	I-Device
camera	I-Device
(	O
MILC	B-Device
)	O
system	O
.	O
</s>
<s>
In	O
2018	O
the	O
system	O
was	O
further	O
extended	O
with	O
the	O
introduction	O
of	O
the	O
EOS	B-Algorithm
R	I-Algorithm
camera	O
,	O
Canon	O
's	O
first	O
full	B-Algorithm
frame	I-Algorithm
mirrorless	B-Device
interchangeable	O
lens	O
system	O
.	O
</s>
<s>
It	O
competes	O
primarily	O
with	O
the	O
Nikon	B-Algorithm
F	I-Algorithm
series	O
and	O
its	O
successors	O
,	O
as	O
well	O
as	O
autofocus	O
SLR	B-Algorithm
systems	O
from	O
Olympus	O
Corporation	O
,	O
Pentax	B-Application
,	O
Sony/Minolta	O
,	O
and	O
Panasonic/Leica	O
.	O
</s>
<s>
At	O
the	O
heart	O
of	O
the	O
system	O
is	O
the	O
EF	B-Application
lens	I-Application
mount	I-Application
,	O
which	O
replaced	O
the	O
previous	O
FD	B-Algorithm
lens	I-Algorithm
mount	I-Algorithm
,	O
which	O
mainly	O
supported	O
only	O
manual-focus	O
lenses	O
.	O
</s>
<s>
The	O
EOS	B-Algorithm
R	I-Algorithm
full	B-Algorithm
frame	I-Algorithm
camera	O
introduced	O
a	O
new	O
lens	O
mount	O
to	O
the	O
system	O
–	O
the	O
RF	B-Algorithm
mount	I-Algorithm
.	O
</s>
<s>
The	O
bayonet-style	O
EF	B-Application
lens	I-Application
mount	I-Application
is	O
at	O
the	O
centre	O
of	O
the	O
EOS	B-Algorithm
camera	I-Algorithm
system	O
.	O
</s>
<s>
Breaking	O
compatibility	O
with	O
the	O
earlier	O
FD	B-Algorithm
mount	I-Algorithm
,	O
it	O
was	O
designed	O
with	O
no	O
mechanical	O
linkages	O
between	O
moving	O
parts	O
in	O
the	O
lens	O
and	O
in	O
the	O
camera	O
.	O
</s>
<s>
This	O
was	O
similar	O
in	O
some	O
ways	O
to	O
Canon	O
's	O
earlier	O
attempt	O
at	O
AF	O
with	O
the	O
T80	B-Algorithm
.	O
</s>
<s>
Other	O
manufacturers	O
including	O
Contax	O
(	O
with	O
its	O
G	O
series	O
of	O
interchangeable-lens	O
35mm	O
rangefinder	O
cameras	O
)	O
,	O
Nikon	B-Algorithm
's	O
1983	O
F3AF	O
,	O
and	O
Olympus	O
(	O
with	O
its	O
Four	B-Architecture
Thirds	I-Architecture
System	I-Architecture
)	O
have	O
since	O
embraced	O
this	O
type	O
of	O
direct	O
drive	O
system	O
.	O
</s>
<s>
The	O
flash	O
system	O
in	O
the	O
EOS	B-Algorithm
cameras	I-Algorithm
has	O
gone	O
through	O
a	O
number	O
of	O
evolutions	O
since	O
its	O
first	O
implementation	O
.	O
</s>
<s>
The	O
basic	O
EOS	O
flash	O
system	O
was	O
actually	O
developed	O
not	O
for	O
the	O
first	O
EOS	B-Algorithm
camera	I-Algorithm
,	O
but	O
rather	O
for	O
the	O
last	O
high-end	O
FD-mount	B-Algorithm
manual-focus	O
camera	O
,	O
the	O
T90	O
,	O
launched	O
in	O
1986	O
.	O
</s>
<s>
It	O
also	O
introduced	O
the	O
A-TTL	B-Algorithm
(	O
Advanced	O
TTL	O
)	O
system	O
for	O
better	O
flash	O
exposure	O
in	O
program	O
mode	O
,	O
using	O
infrared	O
preflashes	O
to	O
gauge	O
subject	O
distance	O
.	O
</s>
<s>
This	O
system	O
was	O
carried	O
over	O
into	O
the	O
early	O
EOS	B-Algorithm
cameras	I-Algorithm
wholesale	O
.	O
</s>
<s>
A-TTL	B-Algorithm
largely	O
fell	O
out	O
of	O
favor	O
,	O
and	O
was	O
replaced	O
by	O
E-TTL	O
(	O
Evaluative	O
TTL	O
)	O
.	O
</s>
<s>
E-TTL	O
II	B-Algorithm
,	O
which	O
was	O
an	O
enhancement	O
in	O
the	O
camera	O
's	O
firmware	B-Application
only	O
,	O
replaced	O
E-TTL	O
from	O
2004	O
.	O
</s>
<s>
As	O
of	O
2017	O
,	O
Canon	O
has	O
released	O
no	O
fewer	O
than	O
70	O
EOS	O
SLR	B-Algorithm
and	O
DSLR	B-Device
camera	I-Device
models	O
,	O
starting	O
with	O
the	O
introduction	O
of	O
the	O
EOS	B-Algorithm
650	I-Algorithm
in	O
1987	O
.	O
</s>
<s>
The	O
first	O
digital	O
EOS	O
SLR	B-Algorithm
camera	I-Algorithm
wholly	O
designed	O
and	O
manufactured	O
by	O
Canon	O
was	O
the	O
EOS	B-Device
D30	I-Device
,	O
released	O
in	O
2000	O
.	O
</s>
<s>
Canon	O
sold	O
two	O
EOS	B-Algorithm
cameras	I-Algorithm
designed	O
to	O
use	O
the	O
APS	O
film	O
format	O
,	O
the	O
EOS	B-Algorithm
IX	I-Algorithm
and	O
the	O
EOS	B-Algorithm
IX	I-Algorithm
Lite	O
.	O
</s>
<s>
Canon	O
also	O
sold	O
a	O
manual-focus	O
camera	O
,	O
the	O
Canon	B-Algorithm
EF-M	I-Algorithm
,	O
which	O
used	O
the	O
same	O
EF	B-Application
lens	I-Application
mount	I-Application
as	O
the	O
EOS	B-Algorithm
cameras	I-Algorithm
.	O
</s>
<s>
Through	O
the	O
tracking	B-General_Concept
of	I-General_Concept
eyeball	I-General_Concept
movements	I-General_Concept
,	O
EOS	B-Algorithm
cameras	I-Algorithm
equipped	O
with	O
eye-controlled	O
focusing	O
(	O
ECF	O
)	O
(	O
some	O
identifiable	O
by	O
the	O
suffix	O
E	O
)	O
were	O
able	O
to	O
select	O
the	O
desired	O
autofocus	O
point	O
in	O
the	O
scene	O
,	O
based	O
on	O
where	O
the	O
user	O
was	O
looking	O
in	O
the	O
viewfinder	O
frame	O
.	O
</s>
<s>
EOS	B-Algorithm
cameras	I-Algorithm
equipped	O
with	O
ECF	O
were	O
the	O
EOS	B-Algorithm
A2E	I-Algorithm
(	O
U.S.	O
model	O
names	O
are	O
shown	O
;	O
see	O
the	O
table	O
below	O
for	O
equivalents	O
in	O
other	O
countries	O
)	O
,	O
EOS	B-Algorithm
Elan	I-Algorithm
IIE	O
,	O
EOS	O
IXe	O
,	O
EOS-3	B-Algorithm
,	O
EOS	B-Algorithm
Elan	I-Algorithm
7E	I-Algorithm
,	O
and	O
EOS	B-Algorithm
Elan	I-Algorithm
7NE	I-Algorithm
.	O
</s>
<s>
Canon	O
did	O
not	O
continue	O
its	O
use	O
of	O
eye-controlled	O
focusing	O
for	O
its	O
digital	B-Device
SLRs	I-Device
.	O
</s>
<s>
The	O
EOS	B-Algorithm
Elan	I-Algorithm
7NE	I-Algorithm
was	O
the	O
last	O
EOS	B-Algorithm
camera	I-Algorithm
to	O
have	O
this	O
function	O
,	O
until	O
2021	O
when	O
Canon	O
reintroduced	O
eye-controlled	O
focus	O
with	O
the	O
EOS	B-Algorithm
R3	I-Algorithm
.	O
</s>
<s>
Most	O
prosumer	O
and	O
professional	O
level	O
EOS	B-Algorithm
cameras	I-Algorithm
feature	O
a	O
large	O
quick	O
control	O
dial	O
(	O
QCD	O
)	O
on	O
the	O
camera	B-Algorithm
back	I-Algorithm
.	O
</s>
<s>
The	O
first	O
consumer-level	O
EOS	B-Algorithm
camera	I-Algorithm
with	O
this	O
feature	O
was	O
the	O
EOS	O
760D/Rebel	O
T6s	O
,	O
announced	O
in	O
February	O
2015	O
.	O
</s>
<s>
A	O
QCD	O
is	O
programmed	O
to	O
perform	O
useful	O
functions	O
,	O
which	O
may	O
include	O
setting	O
exposure	O
compensation	O
,	O
setting	O
of	O
aperture	O
in	O
manual	O
exposure	O
mode	O
,	O
and	O
scrolling	O
of	O
images	O
and	O
menus	O
in	O
digital	O
EOS	B-Algorithm
cameras	I-Algorithm
.	O
</s>
<s>
Currently	O
,	O
top-line	O
EOS	B-Algorithm
cameras	I-Algorithm
have	O
either	O
61	O
or	O
65	O
user-selectable	O
autofocus	O
(	O
AF	O
)	O
points	O
.	O
</s>
<s>
The	O
following	O
EOS	B-Algorithm
cameras	I-Algorithm
feature	O
such	O
a	O
system	O
,	O
with	O
61	O
points	O
unless	O
otherwise	O
indicated	O
:	O
</s>
<s>
The	O
EOS	B-Algorithm
5D	I-Algorithm
Mark	I-Algorithm
III	I-Algorithm
,	O
introduced	O
in	O
March	O
2012	O
.	O
</s>
<s>
The	O
EOS-1D	B-Algorithm
X	I-Algorithm
,	O
announced	O
in	O
October	O
2011	O
and	O
originally	O
scheduled	O
for	O
sale	O
in	O
April	O
2012	O
,	O
but	O
delayed	O
until	O
June	O
2012	O
.	O
</s>
<s>
Since	O
replaced	O
by	O
a	O
Mark	O
II	B-Algorithm
version	O
.	O
</s>
<s>
The	O
EOS	B-Algorithm
7D	I-Algorithm
Mark	I-Algorithm
II	I-Algorithm
,	O
on	O
sale	O
since	O
November	O
2014	O
.	O
</s>
<s>
This	O
APS-C	B-Algorithm
body	O
has	O
Canon	O
's	O
first	O
(	O
and	O
so	O
far	O
only	O
)	O
65-point	O
AF	O
system	O
.	O
</s>
<s>
The	O
EOS	B-Algorithm
5Ds	I-Algorithm
and	I-Algorithm
5Ds	I-Algorithm
R	I-Algorithm
,	O
two	O
closely	O
related	O
higher-resolution	O
full-frame	O
bodies	O
otherwise	O
similar	O
to	O
the	O
5D	B-Algorithm
MkIII	O
,	O
announced	O
in	O
February	O
2015	O
with	O
sales	O
beginning	O
in	O
June	O
of	O
that	O
year	O
.	O
</s>
<s>
The	O
EOS-1D	B-Algorithm
X	I-Algorithm
Mark	I-Algorithm
II	I-Algorithm
,	O
the	O
replacement	O
for	O
the	O
original	O
1D	B-Algorithm
X	I-Algorithm
,	O
announced	O
in	O
February	O
2016	O
with	O
sales	O
expected	O
to	O
begin	O
in	O
April	O
of	O
that	O
year	O
.	O
</s>
<s>
The	O
EOS	B-Algorithm
5D	I-Algorithm
Mark	I-Algorithm
IV	I-Algorithm
,	O
announced	O
in	O
August	O
2016	O
as	O
the	O
replacement	O
for	O
the	O
5D	B-Algorithm
Mk	I-Algorithm
III	I-Algorithm
.	O
</s>
<s>
The	O
release	O
of	O
the	O
5D	B-Algorithm
Mark	I-Algorithm
III	I-Algorithm
gave	O
Canon	O
the	O
lead	O
once	O
again	O
in	O
this	O
category	O
;	O
previously	O
,	O
its	O
top-line	O
cameras	O
had	O
45	O
AF	O
points	O
,	O
which	O
led	O
the	O
industry	O
until	O
Nikon	B-Algorithm
released	O
its	O
D3	O
and	O
D300	O
DSLRs	B-Device
with	O
51-point	O
AF	O
systems	O
.	O
</s>
<s>
The	O
camera	O
generally	O
focuses	O
on	O
the	O
closest	O
object	O
or	O
on	O
human	O
faces	O
,	O
which	O
may	O
not	O
be	O
what	O
the	O
photographer	O
wants	O
,	O
so	O
EOS	B-Algorithm
cameras	I-Algorithm
equipped	O
with	O
a	O
multi-point	O
AF	O
system	O
still	O
allow	O
the	O
photographer	O
to	O
manually	O
select	O
an	O
AF	O
point	O
.	O
</s>
<s>
The	O
EOS-3	B-Algorithm
,	O
EOS-1v	B-Algorithm
,	O
all	O
EOS-1D	B-Algorithm
models	O
prior	O
to	O
the	O
EOS-1D	B-Algorithm
X	I-Algorithm
,	O
EOS	B-Algorithm
80D	I-Algorithm
,	O
EOS	B-Algorithm
77D	I-Algorithm
,	O
and	O
EOS	B-Algorithm
800D/Rebel	I-Algorithm
T7i	I-Algorithm
feature	O
a	O
45-point	O
AF	O
system	O
.	O
</s>
<s>
Most	O
Canon	O
DSLRs	B-Device
introduced	O
since	O
late	O
2005	O
,	O
starting	O
from	O
the	O
EOS	B-Algorithm
20D	I-Algorithm
and	O
the	O
Rebel	B-Algorithm
XTi	I-Algorithm
(	O
400D	B-Algorithm
)	O
,	O
feature	O
a	O
nine-point	O
AF	O
system	O
in	O
a	O
diamond-shape	O
formation	O
.	O
</s>
<s>
The	O
EOS	B-Algorithm
5D	I-Algorithm
,	O
released	O
in	O
2005	O
,	O
takes	O
this	O
9-point	O
AF	O
system	O
a	O
step	O
further	O
by	O
introducing	O
six	O
more	O
'	O
invisible	O
 '	O
AF	O
points	O
(	O
i.e.	O
,	O
not	O
user	O
selectable	O
)	O
in	O
helping	O
the	O
camera	O
acquire	O
focus	O
faster	O
during	O
subject	O
tracking	O
.	O
</s>
<s>
The	O
EOS	O
1000D	O
(	O
Rebel	O
XS	O
)	O
has	O
the	O
7-point	O
AF	O
system	O
of	O
most	O
older	O
Canon	O
DSLRs	B-Device
.	O
</s>
<s>
The	O
EOS	B-Algorithm
7D	I-Algorithm
,	O
released	O
in	O
2009	O
,	O
has	O
a	O
19-point	O
AF	O
layout	O
,	O
fitting	O
essentially	O
within	O
the	O
same	O
diamond-shaped	O
area	O
of	O
the	O
frame	O
as	O
the	O
nine-point	O
layout	O
.	O
</s>
<s>
The	O
EOS	B-Algorithm
70D	I-Algorithm
,	O
released	O
in	O
August	O
2013	O
,	O
inherited	O
the	O
7D	B-Algorithm
's	O
19-point	O
layout	O
,	O
but	O
with	O
fewer	O
AF	O
control	O
options	O
.	O
</s>
<s>
The	O
70D	O
system	O
was	O
in	O
turn	O
handed	O
down	O
to	O
the	O
EOS	B-Algorithm
750D	I-Algorithm
(	O
Rebel	B-Algorithm
T6i	I-Algorithm
)	O
and	O
760D	B-Algorithm
(	O
Rebel	O
T6s	O
)	O
,	O
announced	O
in	O
February	O
2015	O
.	O
</s>
<s>
As	O
mentioned	O
above	O
,	O
the	O
EOS	B-Algorithm
5D	I-Algorithm
Mark	I-Algorithm
III	I-Algorithm
,	O
EOS-1D	B-Algorithm
X	I-Algorithm
,	O
EOS	O
5DS/5DS	O
R	O
,	O
and	O
EOS-1D	B-Algorithm
X	I-Algorithm
Mark	I-Algorithm
II	I-Algorithm
have	O
61-point	O
AF	O
layouts	O
.	O
</s>
<s>
The	O
EOS	B-Algorithm
6D	I-Algorithm
,	O
released	O
in	O
October	O
2012	O
,	O
has	O
an	O
11-point	O
layout	O
.	O
</s>
<s>
The	O
EOS	B-Algorithm
80D	I-Algorithm
,	O
announced	O
in	O
2016	O
,	O
marked	O
the	O
return	O
of	O
45-point	O
AF	O
systems	O
to	O
the	O
Canon	B-Algorithm
EOS	I-Algorithm
line	O
,	O
as	O
well	O
as	O
the	O
first	O
appearance	O
of	O
a	O
45-point	O
system	O
in	O
a	O
non-professional	O
body	O
.	O
</s>
<s>
This	O
system	O
was	O
brought	O
downmarket	O
in	O
2017	O
with	O
its	O
inclusion	O
in	O
the	O
upper-entry-level	O
EOS	B-Algorithm
77D	I-Algorithm
and	O
mid-entry-level	O
EOS	B-Algorithm
800D/Rebel	I-Algorithm
T7i	I-Algorithm
.	O
</s>
<s>
For	O
the	O
earlier	O
generation	O
of	O
45-point	O
AF	O
system	O
,	O
the	O
central	O
column	O
of	O
1	O
or	O
2	O
sensors	O
(	O
7	O
in	O
all	O
up	O
to	O
EOS-1Ds	B-Algorithm
Mk	I-Algorithm
II	I-Algorithm
,	O
EOS-1D	B-Device
Mk	I-Device
II	I-Device
N	I-Device
)	O
are	O
cross-type	O
sensors	O
,	O
which	O
are	O
sensitive	O
to	O
both	O
vertical	O
and	O
horizontal	O
lines	O
to	O
offer	O
a	O
high	O
degree	O
of	O
accuracy	O
.	O
</s>
<s>
The	O
EOS-1Ds	B-Algorithm
Mk	I-Algorithm
III	I-Algorithm
,	O
replaced	O
by	O
the	O
EOS-1D	B-Algorithm
X	I-Algorithm
,	O
has	O
19	O
cross-type	O
sensors	O
for	O
higher	O
accuracy	O
,	O
as	O
well	O
as	O
placing	O
the	O
cross-type	O
sensors	O
to	O
complement	O
the	O
Rule	O
of	O
Thirds	O
.	O
</s>
<s>
The	O
other	O
Canon	O
professional	O
SLR	B-Algorithm
replaced	O
by	O
the	O
EOS-1D	B-Algorithm
X	I-Algorithm
,	O
the	O
APS-H	O
EOS-1D	B-Algorithm
Mk	I-Algorithm
IV	I-Algorithm
,	O
has	O
39	O
cross-type	O
sensors	O
,	O
a	O
major	O
increase	O
from	O
the	O
19	O
of	O
the	O
Mk	B-Algorithm
III	I-Algorithm
.	O
</s>
<s>
Of	O
the	O
61	O
AF	O
points	O
of	O
the	O
EOS-1D	B-Algorithm
X	I-Algorithm
and	O
5D	B-Algorithm
MkIII	O
,	O
21	O
central	O
points	O
and	O
20	O
outer	O
points	O
are	O
cross-type	O
,	O
and	O
five	O
central	O
points	O
are	O
dual-cross-type	O
(	O
sensitive	O
to	O
diagonal	O
lines	O
in	O
addition	O
to	O
horizontal	O
and	O
vertical	O
)	O
.	O
</s>
<s>
All	O
65	O
points	O
of	O
the	O
7D	B-Algorithm
MkII	O
are	O
cross-type	O
,	O
but	O
only	O
the	O
center	O
point	O
is	O
dual-cross-type	O
.	O
</s>
<s>
Similarly	O
,	O
,	O
all	O
AF	O
points	O
on	O
later	O
generations	O
of	O
the	O
X0D	O
series	O
(	O
beginning	O
with	O
the	O
40D	B-Device
and	O
continuing	O
through	O
the	O
current	O
80D	O
)	O
are	O
cross-type	O
sensors	O
for	O
higher	O
accuracy	O
,	O
and	O
the	O
center	O
sensor	B-Algorithm
is	O
dual-cross-type	O
for	O
even	O
greater	O
accuracy	O
and	O
sensitivity	O
.	O
</s>
<s>
In	O
June	O
2012	O
,	O
the	O
EOS	B-Algorithm
650D	I-Algorithm
(	O
Rebel	B-Algorithm
T4i	I-Algorithm
)	O
became	O
the	O
first	O
consumer-level	O
Canon	O
to	O
receive	O
this	O
AF	O
system	O
.	O
</s>
<s>
For	O
example	O
,	O
the	O
EOS	B-Algorithm
Rebel	I-Algorithm
2000	I-Algorithm
known	O
in	O
the	O
Americas	O
is	O
also	O
known	O
as	O
EOS	B-Algorithm
Kiss	I-Algorithm
III	I-Algorithm
in	O
Japan	O
,	O
and	O
EOS	B-Algorithm
300	I-Algorithm
in	O
other	O
parts	O
of	O
the	O
world	O
.	O
</s>
<s>
5D	B-Algorithm
,	O
II	B-Algorithm
,	O
III	B-Algorithm
,	O
IV	B-Algorithm
:	O
High-end	O
Full	B-Algorithm
Frame	I-Algorithm
DSLRs	I-Algorithm
,	O
and	O
the	O
highest-end	O
without	O
a	O
built-in	O
portrait	O
grip	O
.	O
</s>
<s>
5DS	B-Algorithm
,	O
5DS	B-Algorithm
R	I-Algorithm
:	O
Ultra-high	O
resolution	O
versions	O
of	O
5D	B-Algorithm
Mark	I-Algorithm
III	I-Algorithm
.	O
</s>
<s>
Single	O
CF	B-Device
card	I-Device
slot	O
on	O
older	O
models	O
(	O
1D	B-Algorithm
and	O
1Ds	B-Algorithm
)	O
.	O
</s>
<s>
1D	B-Algorithm
,	O
II	B-Algorithm
,	O
III	B-Algorithm
,	O
IV	B-Algorithm
:	O
APS-H	O
sensor	B-Algorithm
DSLRs	B-Device
with	O
high-speed	O
continuous	O
shooting	O
speed	O
and	O
advanced	O
autofocus	O
system	O
.	O
</s>
<s>
1Ds	B-Algorithm
,	O
II	B-Algorithm
,	O
III	B-Algorithm
:	O
Full	B-Algorithm
Frame	I-Algorithm
DSLRs	I-Algorithm
with	O
slower	O
burst	O
rate	O
,	O
but	O
better	O
image	O
quality	O
than	O
the	O
regular	O
1D	B-Algorithm
series	O
.	O
</s>
<s>
1D	B-Algorithm
X	I-Algorithm
,	O
II	B-Algorithm
,	O
III	B-Algorithm
:	O
Merges	O
the	O
1Ds	B-Algorithm
and	O
1D	B-Algorithm
series	O
together	O
;	O
high	O
speed	O
shutter	O
,	O
fast	O
autofocus	O
and	O
full	B-Algorithm
frame	I-Algorithm
sensor	B-Algorithm
with	O
excellent	O
image	O
quality	O
.	O
</s>
<s>
EOS	B-Algorithm
M	I-Algorithm
,	O
</s>
<s>
EOS	B-Device
M2	I-Device
,	O
</s>
<s>
EOS	B-Algorithm
M3	I-Algorithm
,	O
</s>
<s>
More	O
physical	O
controlsNumber	O
5	O
or	O
6	O
after	O
letter	O
M	O
.	O
This	O
will	O
probably	O
also	O
continue	O
as	O
"	O
Mark	O
II	B-Algorithm
"	O
.	O
</s>
<s>
The	O
M6	O
slots	O
below	O
the	O
M5	O
but	O
the	O
M6	O
Mark	O
II	B-Algorithm
succeeds	O
both	O
the	O
M5/M6	O
.	O
</s>
<s>
EOS	B-Algorithm
M5	I-Algorithm
,	O
</s>
<s>
EOS	B-Algorithm
M6	I-Algorithm
,	O
</s>
<s>
Single	O
card	O
slot	O
in	O
EOS	B-Algorithm
R	I-Algorithm
;	O
Double	O
card	O
slot	O
in	O
R3	O
,	O
R5	O
,	O
and	O
R6Only	O
a	O
letter	O
"	O
R	O
"	O
or	O
an	O
additional	O
number	O
.	O
</s>
<s>
This	O
is	O
a	O
list	O
of	O
the	O
35mm	O
Film	O
and	O
APS	O
Canon	B-Algorithm
EOS	I-Algorithm
models	O
in	O
order	O
of	O
introduction	O
:	O
</s>
<s>
Prior	O
to	O
the	O
introduction	O
of	O
the	O
EOS	B-Device
D30	I-Device
digital	B-Device
SLR	I-Device
,	O
Kodak	O
produced	O
four	O
digital	B-Device
SLRs	I-Device
also	O
sold	O
under	O
the	O
Canon	O
brand	O
.	O
</s>
<s>
These	O
cameras	O
used	O
a	O
digital	B-Algorithm
camera	I-Algorithm
back	I-Algorithm
with	O
the	O
image	B-Algorithm
sensor	I-Algorithm
and	O
associated	O
electronics	O
designed	O
and	O
built	O
by	O
Kodak	O
together	O
with	O
modified	O
internals	O
of	O
the	O
EOS-1N	B-Algorithm
film	O
SLR	B-Algorithm
.	O
</s>
<s>
Due	O
to	O
using	O
the	O
Canon	B-Algorithm
EOS	I-Algorithm
body	O
,	O
these	O
four	O
digital	B-Device
SLRs	I-Device
can	O
accept	O
EF	B-Application
lenses	I-Application
.	O
</s>
<s>
After	O
termination	O
of	O
the	O
agreement	O
by	O
Canon	O
,	O
Kodak	O
cooperated	O
with	O
Sigmawho	O
at	O
that	O
time	O
had	O
a	O
Canon	O
licenseto	O
produce	O
the	O
Kodak	B-Algorithm
DCS	I-Algorithm
Pro	I-Algorithm
SLR/c	I-Algorithm
based	O
on	O
a	O
SA9	O
SLR	B-Algorithm
body	O
in	O
2004	O
,	O
which	O
was	O
compatible	O
with	O
EF	B-Application
lenses	I-Application
.	O
</s>
<s>
The	O
following	O
digital	B-Device
SLRs	I-Device
,	O
starting	O
from	O
the	O
D30	B-Device
,	O
had	O
bodies	O
and	O
sensors	O
completely	O
designed	O
and	O
manufactured	O
by	O
Canon	O
(	O
except	O
for	O
the	O
Canon	B-Algorithm
EOS-1D	I-Algorithm
,	O
which	O
uses	O
a	O
Panasonic	O
sourced	O
CCD	B-Algorithm
sensor	I-Algorithm
)	O
.	O
</s>
<s>
Canon	O
digital	B-Device
SLRs	I-Device
are	O
equipped	O
with	O
a	O
CMOS	B-Architecture
sensor	I-Architecture
(	O
with	O
the	O
exception	O
of	O
EOS-1D	B-Algorithm
that	O
uses	O
a	O
CCD	B-Algorithm
sensor	I-Algorithm
)	O
.	O
</s>
<s>
Canon	O
designs	O
and	O
manufactures	O
their	O
own	O
CMOS	B-Architecture
sensors	I-Architecture
.	O
</s>
