<s>
Chaika	B-Algorithm
(	O
)	O
was	O
a	O
series	O
of	O
Soviet	O
35mm	O
half-frame	O
cameras	O
produced	O
by	O
BELOMO	O
from	O
1965	O
to	O
1974	O
.	O
</s>
<s>
Over	O
2	O
million	O
Chaika	B-Algorithm
cameras	O
were	O
produced	O
.	O
</s>
<s>
All	O
models	O
of	O
the	O
Chaika	B-Algorithm
cameras	O
have	O
metal	O
cases	O
.	O
</s>
<s>
Chaika	B-Algorithm
cameras	O
share	O
the	O
following	O
basic	O
specifications	O
:	O
</s>
<s>
Lens	O
—	O
Industar-69	O
(	O
Tessar-type	O
)	O
...	O
mounted	O
by	O
LTM-like	B-Algorithm
thread	O
of	O
39	O
mm	O
diameter	O
.	O
</s>
