<s>
The	O
smc	O
Pentax-FA	O
77mm	O
f/1.8	O
Limited	O
is	O
a	O
prime	O
lens	O
for	O
Pentax	B-Algorithm
K-mount	I-Algorithm
aimed	O
at	O
portrait	O
photography	O
.	O
</s>
<s>
It	O
is	O
one	O
of	O
the	O
three	O
FA	O
Limited	O
lenses	O
(	O
the	O
other	O
two	O
being	O
the	O
smc	B-Algorithm
Pentax-FA	I-Algorithm
43mm	I-Algorithm
f/1.9	I-Algorithm
Limited	I-Algorithm
and	O
smc	B-Algorithm
Pentax-FA	I-Algorithm
31mm	I-Algorithm
f/1.8	I-Algorithm
Limited	I-Algorithm
)	O
in	O
Pentax	O
lens	O
line	O
up	O
.	O
</s>
<s>
Pentax	O
released	O
the	O
lens	O
in	O
1999	O
,	O
two	O
years	O
after	O
the	O
FA	B-Algorithm
43mm	I-Algorithm
Limited	I-Algorithm
,	O
the	O
first	O
lens	O
in	O
their	O
Limited	O
series	O
.	O
</s>
<s>
The	O
lens	O
features	O
Pentax	O
ghostless	O
coating	O
,	O
first	O
introduced	O
with	O
the	O
FA	B-Algorithm
43mm	I-Algorithm
Limited	I-Algorithm
,	O
to	O
reduce	O
flare	O
to	O
a	O
bare	O
minimum	O
.	O
</s>
