<s>
The	O
EF	B-Application
11	O
–	O
24	O
mm	O
4L	O
USM	O
lens	O
is	O
a	O
professional	O
wide-angle	O
lens	O
made	O
by	O
Canon	O
Inc	O
.	O
</s>
<s>
It	O
was	O
announced	O
on	O
February	O
5	O
,	O
2015	O
,	O
and	O
at	O
that	O
time	O
was	O
the	O
widest	O
rectilinear	O
lens	O
ever	O
made	O
for	O
the	O
35mm	O
format	O
in	O
either	O
its	O
film	O
or	O
digital	B-Algorithm
versions	O
.	O
</s>
<s>
The	O
lens	O
has	O
an	O
EF	B-Application
mount	I-Application
to	O
work	O
with	O
the	O
EOS	B-Algorithm
line	O
of	O
cameras	O
.	O
</s>
<s>
Attribute	O
4L	O
USM	O
Image200px	O
Key	O
features	O
Full-frame	O
compatiblecolspan	O
=	O
1	O
Image	O
stabilizercolspan	O
=	O
1	O
Environmental	O
Sealingcolspan	O
=	O
1	O
Ultrasonic	O
Motorcolspan	O
=	O
1	O
L-seriescolspan	O
=	O
1	O
Diffractive	O
Opticscolspan	O
=	O
1	O
Technical	O
data	O
Aperture	B-General_Concept
(	O
max	O
–	O
min	O
)	O
4	O
–	O
22	O
Construction	O
11	O
groups	O
/	O
16	O
elements	O
#	O
of	O
diaphragm	O
blades	O
9	O
Closest	O
focusing	O
distance	O
0.28	O
m	O
/	O
11	O
"	O
(	O
at	O
24	O
mm	O
)	O
Max	O
.	O
</s>
