<s>
Gemflex	B-Algorithm
is	O
a	O
subminiature	O
twin	O
lens	O
reflex	O
camera	O
made	O
by	O
Showa	O
Optica	O
Works	O
( 昭和光学精機	O
)	O
in	O
occupied	O
Japan	O
in	O
the	O
1950s	O
.	O
</s>
<s>
Gemflex	B-Algorithm
resembles	O
the	O
well	O
known	O
Rolleiflex	O
6x6cm	O
twin	O
lens	O
reflex	O
,	O
but	O
much	O
smaller	O
in	O
size	O
.	O
</s>
<s>
The	O
body	O
of	O
Gemflex	B-Algorithm
is	O
die-cast	O
from	O
shatter	O
proof	O
metal	O
.	O
</s>
<s>
A	O
tripod	O
socket	O
at	O
bottom	O
of	O
the	O
Gemflex	B-Algorithm
allows	O
attachment	O
to	O
tripod	O
.	O
</s>
<s>
Gemflex	B-Algorithm
belongs	O
to	O
HIT	O
camera	O
class	O
,	O
using	O
17.5mm	O
paper	O
backed	O
roll	O
film	O
(	O
known	O
as	O
HIT	O
film	O
)	O
.	O
</s>
