<s>
Canon	O
Inc	O
.	O
has	O
produced	O
seven	O
different	O
24mm	O
lenses	O
for	O
its	O
Canon	B-Application
EF	I-Application
and	O
EF-S	B-Algorithm
lens	I-Algorithm
mounts	O
.	O
</s>
<s>
EF-S	B-Algorithm
24mm	O
2.8	O
STM	O
,	O
announced	O
September	O
2014	O
.	O
</s>
<s>
Unlike	O
the	O
other	O
24mm	O
lenses	O
,	O
it	O
will	O
mount	O
only	O
on	O
bodies	O
that	O
support	O
the	O
EF-S	B-Algorithm
mount	I-Algorithm
.	O
</s>
<s>
It	O
will	O
mount	O
on	O
all	O
current	O
Canon	O
DSLR	O
bodies	O
with	O
APS-C	O
sensors	O
,	O
as	O
well	O
as	O
older	O
APS-C	O
bodies	O
dating	O
to	O
the	O
2003	O
introduction	O
of	O
the	O
EF-S	B-Algorithm
mount	I-Algorithm
(	O
in	O
other	O
words	O
,	O
the	O
EOS	B-Algorithm
10D	I-Algorithm
and	O
older	O
bodies	O
are	O
not	O
compatible	O
)	O
.	O
</s>
<s>
It	O
will	O
not	O
mount	O
on	O
any	O
DSLR	O
body	O
with	O
a	O
full-frame	B-Device
or	O
APS-H	O
sensor	O
.	O
</s>
<s>
It	O
also	O
cannot	O
directly	O
mount	O
on	O
Canon	O
's	O
mirrorless	B-Device
bodies	O
(	O
either	O
the	O
APS-C	O
EF-M	B-Algorithm
mount	I-Algorithm
or	O
the	O
full-frame	B-Device
RF	B-Algorithm
mount	I-Algorithm
)	O
,	O
but	O
the	O
company	O
sells	O
adapters	O
that	O
allow	O
EF-S	B-Algorithm
lenses	I-Algorithm
to	O
be	O
used	O
on	O
either	O
mirrorless	B-Device
mount	O
.	O
</s>
<s>
As	O
it	O
is	O
designed	O
for	O
Canon	O
APS-C	O
bodies	O
,	O
its	O
field	O
of	O
view	O
is	O
equivalent	O
to	O
a	O
38mm	O
lens	O
on	O
a	O
full-frame	B-Device
sensor	O
,	O
and	O
operates	O
similar	O
to	O
the	O
Canon	B-Algorithm
EF	I-Algorithm
40mm	I-Algorithm
f/2.8	I-Algorithm
STM	I-Algorithm
pancake	O
lens	O
.	O
</s>
<s>
Compared	O
to	O
the	O
EF	O
24	O
2.8	O
IS	O
USM	O
,	O
the	O
EF-S	B-Algorithm
lens	I-Algorithm
loses	O
IS	O
,	O
but	O
lists	O
for	O
about	O
a	O
fourth	O
of	O
the	O
price	O
.	O
</s>
<s>
Attribute	O
EF	O
1.4L	O
USMEF	O
1.4L	O
II	O
USMEF	O
2.8EF	O
2.8	O
IS	O
USMEF-S	O
2.8	O
STM	O
Image150px150px150px150px	O
Key	O
features	O
Full-frame	B-Algorithm
compatible	I-Algorithm
15px|Yes	O
Yes	O
15px|No	O
No	O
Image	O
stabilizer	O
15px|No	O
No	O
15px|Yes	O
Yes	O
15px|No	O
No	O
Ultrasonic	O
Motor	O
15px|Yes	O
Yes	O
15px|No	O
No	O
15px|Yes	O
Yes	O
15px|No	O
No	O
Stepping	O
Motor	O
15px|No	O
No	O
15px|Yes	O
Yes	O
L-series	O
15px|Yes	O
Yes	O
15px|No	O
No	O
Diffractive	O
Optics	O
15px|No	O
No	O
Macro	O
15px|No	O
No	O
Technical	O
data	O
Aperture	B-General_Concept
(	O
max-min	O
)	O
1.4-22	O
2.8-22	O
Construction	O
9	O
groups	O
/	O
11	O
elements	O
10	O
groups	O
/	O
13	O
elements	O
10	O
groups	O
/	O
10	O
elements	O
9	O
groups	O
/	O
11	O
elements	O
5	O
groups	O
/	O
6	O
elements	O
#	O
of	O
diaphragm	O
blades	O
7	O
(	O
rounded	O
)	O
8	O
(	O
rounded	O
)	O
6	O
7	O
(	O
rounded	O
)	O
7	O
Closest	O
focusing	O
distance	O
0.82	O
'	O
/	O
0.25m	O
0.66	O
'	O
/	O
0.20m	O
0.52	O
'	O
/	O
0.16m	O
Max	O
.	O
</s>
