<s>
The	O
SMC	O
Pentax-FA	O
31mm	O
f/1.8	O
AL	O
Limited	O
is	O
a	O
full-frame	O
moderate	O
wide-angle	O
lens	O
for	O
Pentax	B-Algorithm
K-mount	I-Algorithm
.	O
</s>
<s>
It	O
lacks	O
Quick	O
Shift	O
Focus	O
,	O
which	O
is	O
now	O
found	O
on	O
most	O
other	O
Pentax	B-Application
lenses	O
,	O
and	O
therefore	O
does	O
not	O
allow	O
manual	O
focusing	O
while	O
in	O
autofocus	O
mode	O
.	O
</s>
<s>
Popular	O
Photography	O
said	O
in	O
its	O
March	O
2002	O
issue	O
that	O
the	O
Pentax	B-Application
31mm	O
Limited	O
was	O
one	O
of	O
the	O
greatest	O
prime	O
lenses	O
they	O
had	O
ever	O
tested	O
.	O
</s>
<s>
In	O
a	O
Pentax	B-Application
Lens	O
Tournament	O
held	O
in	O
2014	O
,	O
the	O
users	O
of	O
pentaxforums.com,	O
one	O
of	O
the	O
biggest	O
Pentax-related	O
online	O
communities	O
,	O
voted	O
the	O
31mm	O
Limited	O
to	O
be	O
the	O
Greatest	O
Normal	O
Pentax	B-Application
lens	O
as	O
well	O
as	O
the	O
Second	O
Greatest	O
Pentax	B-Application
Lens	O
of	O
All	O
Time	O
after	O
the	O
FA	B-Algorithm
77mm	I-Algorithm
Limited	I-Algorithm
.	O
</s>
