<s>
The	O
Pentax	B-Algorithm
K-1	I-Algorithm
is	O
the	O
first	O
production	O
Pentax	B-Application
full-frame	B-Algorithm
digital	I-Algorithm
SLR	I-Algorithm
camera	I-Algorithm
.	O
</s>
<s>
As	O
the	O
flagship	O
model	O
of	O
the	O
Pentax	B-Algorithm
K-mount	I-Algorithm
system	O
,	O
it	O
includes	O
several	O
new	O
and	O
improved	O
features	O
,	O
including	O
a	O
five-axis	O
SR	O
II	O
in-body	O
image	O
stabilization	O
system	O
,	O
newly	O
designed	O
flexible	O
tilt	O
articulating	B-Device
screen	I-Device
mounted	O
on	O
four	O
metal	O
struts	O
allowing	O
for	O
rotation	O
about	O
the	O
optical	O
axis	O
in	O
addition	O
to	O
upward	O
and	O
downward	O
tilt	O
,	O
and	O
improved	O
autofocus	O
and	O
metering	O
systems	O
.	O
</s>
<s>
On	O
22	O
February	O
2018	O
,	O
Ricoh	O
announced	O
the	O
Pentax	B-Algorithm
K-1	I-Algorithm
Mark	O
II	O
with	O
availability	O
from	O
the	O
end	O
of	O
April	O
2018	O
.	O
</s>
<s>
In	O
2018	O
,	O
Pentax	B-Application
offered	O
an	O
upgrade	O
for	O
owners	O
of	O
the	O
K-1	O
which	O
replaces	O
the	O
mainboard	O
and	O
includes	O
the	O
Image	O
Processing	O
Unit	O
of	O
the	O
K-1	O
II	O
.	O
</s>
