<s>
The	O
HD	O
Pentax-D	O
FA	O
70	O
–	O
210mm	O
f/4.0	O
ED	O
SDM	O
WR	O
lens	O
is	O
a	O
telephoto	O
zoom	O
lens	O
for	O
the	O
Pentax	B-Algorithm
K-mount	I-Algorithm
.	O
</s>
<s>
It	O
is	O
an	O
additional	O
full-frame	O
lens	O
to	O
reboot	O
Pentax	B-Application
 '	O
involvement	O
in	O
that	O
format	O
,	O
the	O
last	O
previously	O
introduced	O
newly	O
developed	O
full-frame	O
lens	O
being	O
the	O
D	B-Algorithm
FA*	I-Algorithm
50mm	I-Algorithm
ED	I-Algorithm
SDM	I-Algorithm
AW	I-Algorithm
in	O
2018	O
.	O
</s>
<s>
On	O
Pentax	B-Application
APS-C	B-Algorithm
cameras	O
,	O
the	O
D	O
FA	O
70	O
–	O
210mm	O
has	O
an	O
equivalent	O
focal	O
length	O
range	O
of	O
107	O
–	O
322mm	O
.	O
</s>
<s>
This	O
lens	O
offers	O
many	O
features	O
of	O
the	O
2017	O
introduced	O
D	B-Algorithm
FA*	I-Algorithm
70-200mm	I-Algorithm
2.8	I-Algorithm
.	O
</s>
<s>
While	O
this	O
lens	O
is	O
developed	O
and	O
manufactured	O
by	O
Tamron	O
,	O
Pentax	B-Application
offers	O
an	O
optically	O
identical	O
lens	O
as	O
part	O
for	O
their	O
K-Mount	B-Algorithm
.	O
</s>
