<s>
The	O
Pentax	B-Algorithm
K-3	I-Algorithm
II	I-Algorithm
was	O
a	O
flagship	O
APS-C	B-Algorithm
DSLR	B-Device
camera	I-Device
announced	O
by	O
Ricoh	O
on	O
April	O
23	O
,	O
2015	O
.	O
</s>
