<s>
The	O
Pentax	B-Application
smc	O
DA	O
15mm	O
F4	O
ED	O
AL	O
Limited	O
is	O
a	O
wide-angle	O
prime	O
lens	O
for	O
Pentax	B-Algorithm
K-mount	I-Algorithm
,	O
announced	O
by	O
Pentax	B-Application
on	O
March	O
2	O
,	O
2009	O
.	O
</s>
<s>
Along	O
with	O
Pentax	B-Application
's	O
other	O
DA	O
Limited	O
primes	O
,	O
it	O
was	O
replaced	O
in	O
2013	O
with	O
an	O
HD-coated	O
version	O
with	O
rounded	O
aperture	O
blades	O
.	O
</s>
