<s>
The	O
Canon	B-Algorithm
EF-S	I-Algorithm
17	O
–	O
55mm	O
2.8	O
IS	O
USM	O
is	O
a	O
standard	O
zoom	O
lens	O
for	O
Canon	O
digital	B-Device
single-lens	I-Device
reflex	I-Device
cameras	I-Device
with	O
an	O
EF-S	B-Algorithm
lens	I-Algorithm
mount	I-Algorithm
.	O
</s>
<s>
It	O
is	O
praised	O
as	O
"	O
one	O
of	O
the	O
best	O
general/multi	O
-purpose	O
lenses	O
available	O
"	O
,	O
and	O
ideal	O
for	O
available	O
light	O
photography	O
on	O
a	O
Canon	O
APS-C	B-Algorithm
camera	O
.	O
</s>
<s>
The	O
fast	O
2.8	O
aperture	O
,	O
combined	O
with	O
3-stop	O
image	O
stabilization	O
,	O
makes	O
the	O
17	O
–	O
55	O
very	O
useful	O
in	O
low	O
light	O
compared	O
to	O
an	O
unstabilized	O
3.5	O
–	O
5.6	O
Canon	B-Algorithm
EF-S	I-Algorithm
18	I-Algorithm
–	I-Algorithm
55mm	I-Algorithm
lens	I-Algorithm
,	O
which	O
is	O
a	O
frequent	O
kit	O
lens	O
,	O
and	O
thus	O
the	O
17	O
–	O
55	O
is	O
much	O
more	O
suited	O
for	O
hand	O
holding	O
and	O
available-light	O
photography	O
.	O
</s>
<s>
Some	O
regard	O
the	O
decision	O
to	O
not	O
designate	O
the	O
lens	O
as	O
L-class	O
as	O
marketing-driven	O
,	O
but	O
being	O
EF-S	B-Algorithm
it	O
will	O
not	O
fit	O
on	O
a	O
full-frame	O
body	O
—	O
therefore	O
,	O
at	O
least	O
under	O
current	O
Canon	O
marketing	O
strategy	O
,	O
cannot	O
be	O
labeled	O
L-series	O
.	O
</s>
<s>
"	O
The	O
resolution	O
figures	O
are	O
among	O
the	O
very	O
best	O
seen	O
so	O
far	O
for	O
an	O
APS-C	B-Algorithm
standard	O
zoom	O
lens.	O
"	O
</s>
<s>
The	O
build	O
quality	O
is	O
inferior	O
to	O
L-series	O
lenses	O
(	O
plastic	O
body	O
,	O
not	O
magnesium	O
alloy	O
)	O
,	O
though	O
superior	O
to	O
the	O
EF-S	B-Algorithm
17	I-Algorithm
–	I-Algorithm
85mm	I-Algorithm
lens	I-Algorithm
.	O
</s>
<s>
Unlike	O
most	O
other	O
EF-S	B-Algorithm
lenses	I-Algorithm
,	O
the	O
17	O
–	O
55mm	O
does	O
not	O
have	O
a	O
direct	O
equivalent	O
in	O
the	O
range	O
of	O
traditional	O
EF	O
lenses	O
.	O
</s>
<s>
As	O
a	O
general	O
purpose	O
EF-S	B-Algorithm
zoom	O
lens	O
,	O
the	O
alternatives	O
to	O
the	O
17	O
–	O
55mm	O
are	O
the	O
EF-S	B-Algorithm
18	O
–	O
55mm	O
3.5	O
–	O
5.6	O
,	O
which	O
is	O
a	O
cheaper	O
kit	O
lens	O
;	O
the	O
EF-S	B-Algorithm
17	O
–	O
85mm	O
4	O
–	O
5.6	O
IS	O
USM	O
,	O
which	O
is	O
midway	O
between	O
the	O
18	O
–	O
55mm	O
and	O
17	O
–	O
55mm	O
in	O
some	O
respects	O
–	O
depending	O
on	O
which	O
version	O
of	O
the	O
18	O
–	O
55	O
one	O
is	O
comparing	O
–	O
and	O
boasts	O
a	O
longer	O
telephoto	O
end	O
;	O
and	O
the	O
newer	O
EF-S	B-Algorithm
15	O
–	O
85mm	O
3.5	O
–	O
5.6	O
IS	O
USM	O
,	O
which	O
has	O
similar	O
build	O
quality	O
to	O
the	O
17	O
–	O
55mm	O
and	O
the	O
largest	O
focal	O
length	O
range	O
of	O
the	O
group	O
.	O
</s>
<s>
Also	O
,	O
it	O
can	O
be	O
compared	O
to	O
the	O
three	O
Canon	B-Algorithm
EF	I-Algorithm
24	I-Algorithm
–	I-Algorithm
70	I-Algorithm
mm	I-Algorithm
L	I-Algorithm
lenses	I-Algorithm
.	O
</s>
<s>
The	O
EF	B-Algorithm
28	I-Algorithm
–	I-Algorithm
90mm	I-Algorithm
,	O
though	O
having	O
corresponding	O
full-frame	O
equivalent	O
focal	O
length	O
,	O
is	O
an	O
inexpensive	O
kit	O
lens	O
and	O
is	O
not	O
comparable	O
to	O
the	O
17	O
–	O
55mm	O
,	O
having	O
slower	O
aperture	O
,	O
a	O
variable	O
maximum	O
aperture	O
,	O
lower	O
image	O
quality	O
,	O
and	O
no	O
image	O
stabilization	O
.	O
</s>
