<s>
The	O
Robot	B-Algorithm
II	I-Algorithm
was	O
a	O
mechanical	O
135	O
film	O
camera	O
by	O
Robot	B-Algorithm
introduced	O
in	O
1938	O
.	O
</s>
<s>
It	O
was	O
a	O
slightly	O
larger	O
camera	O
than	O
the	O
Robot	B-Algorithm
I	O
,	O
with	O
some	O
significant	O
improvements	O
but	O
still	O
using	O
the	O
basic	O
mechanism	O
.	O
</s>
<s>
The	O
film	O
cassette	O
system	O
was	O
redesigned	O
but	O
it	O
was	O
only	O
with	O
the	O
Robot	B-Algorithm
IIa	I-Algorithm
launched	O
in	O
1951	O
that	O
film	O
could	O
accept	O
a	O
standard	O
35mm	O
cassette	O
.	O
</s>
<s>
The	O
special	O
Robot	B-Algorithm
cassettes	O
type-N	O
continued	O
their	O
role	O
for	O
take	O
up	O
.	O
</s>
<s>
The	O
Second	O
World	O
War	O
stopped	O
civilian	O
production	O
of	O
the	O
Robot	B-Algorithm
but	O
it	O
was	O
used	O
as	O
a	O
gun	O
camera	O
by	O
the	O
Luftwaffe	O
.	O
</s>
<s>
The	O
Robot	B-Algorithm
II	I-Algorithm
took	O
square	O
photographs	O
in	O
the	O
24×24mm	O
format	O
,	O
which	O
allowed	O
50	O
exposures	O
to	O
fit	O
on	O
a	O
36-exposure	O
film	O
.	O
</s>
<s>
Also	O
available	O
was	O
the	O
Robot	B-Algorithm
Star	O
II/50	O
,	O
with	O
a	O
double	O
spring	O
motor	O
for	O
50	O
exposures	O
and	O
a	O
Xenar	O
38mm	O
f2.8	O
lens	O
.	O
</s>
