<s>
The	O
smc	O
Pentax-DA	O
40mm	O
f/2.8	O
Limited	O
is	O
a	O
pancake	O
lens	O
for	O
the	O
Pentax	B-Algorithm
K-mount	I-Algorithm
.	O
</s>
<s>
At	O
only	O
long	O
,	O
it	O
was	O
the	O
smallest	O
lens	O
made	O
by	O
Pentax	B-Application
until	O
the	O
40mm	O
XS	O
lens	O
was	O
introduced	O
.	O
</s>
<s>
In	O
August	O
2013	O
it	O
was	O
re-released	O
with	O
improved	O
lens	O
coatings	O
and	O
rounded	O
aperture	O
blades	O
as	O
HD	O
Pentax-DA	O
40mm	O
f/2.8	O
Limited	O
.	O
</s>
<s>
The	O
SMC	O
Pentax-DA	O
40mm	O
f/2.8	O
XS	O
is	O
an	O
even	O
thinner	O
version	O
of	O
the	O
SMC	O
DA	O
40mm	O
lens	O
,	O
at	O
thick	O
,	O
released	O
by	O
Pentax	B-Application
on	O
February	O
2	O
,	O
2012	O
.	O
</s>
<s>
It	O
features	O
an	O
aesthetic	O
design	O
by	O
Marc	O
Newson	O
to	O
match	O
the	O
Pentax	B-Algorithm
K-01	I-Algorithm
.	O
</s>
