<s>
The	O
Rolleicord	B-Algorithm
is	O
a	O
medium-format	O
twin	B-Algorithm
lens	I-Algorithm
reflex	I-Algorithm
camera	I-Algorithm
made	O
by	O
Franke	O
&	O
Heidecke	O
(	O
Rollei	O
)	O
between	O
1933	O
and	O
1976	O
.	O
</s>
<s>
It	O
was	O
a	O
simpler	O
,	O
less	O
expensive	O
version	O
of	O
the	O
high-end	O
Rolleiflex	B-Algorithm
TLR	O
,	O
aimed	O
at	O
amateur	O
photographers	O
who	O
wanted	O
a	O
high-quality	O
camera	O
but	O
could	O
not	O
afford	O
the	O
expensive	O
Rolleiflex	B-Algorithm
.	O
</s>
<s>
Several	O
models	O
of	O
Rolleicord	B-Algorithm
were	O
made	O
;	O
the	O
later	O
models	O
generally	O
had	O
more	O
advanced	O
features	O
and	O
tend	O
to	O
be	O
valued	O
higher	O
in	O
today	O
's	O
market	O
.	O
</s>
<s>
The	O
first	O
Rolleicord	B-Algorithm
,	O
introduced	O
in	O
November	O
1933	O
,	O
was	O
the	O
Rolleicord	B-Algorithm
I	O
.	O
</s>
<s>
This	O
camera	O
was	O
a	O
simplified	O
version	O
of	O
the	O
Standard	O
Rolleiflex	B-Algorithm
,	O
with	O
a	O
cheaper	O
75mm	O
Zeiss	O
Triotar	O
lens	O
and	O
a	O
simplified	O
film	O
advance	O
mechanism	O
using	O
a	O
knob	O
instead	O
of	O
the	O
crank	O
found	O
on	O
the	O
Rolleiflex	B-Algorithm
.	O
</s>
<s>
The	O
Rolleicord	B-Algorithm
I	O
was	O
available	O
either	O
with	O
a	O
plain	O
leatherette	O
covering	O
or	O
elaborately	O
patterned	O
metal	O
faceplates	O
.	O
</s>
<s>
The	O
latter	O
variant	O
is	O
referred	O
to	O
as	O
the	O
"	O
Art	O
Deco	O
"	O
Rolleicord	B-Algorithm
.	O
</s>
<s>
Later	O
models	O
incorporated	O
improved	O
designs	O
for	O
the	O
taking	O
lens	O
,	O
a	O
4-element	O
Schneider	O
Kreuznach	O
Xenar	O
,	O
which	O
also	O
appeared	O
on	O
the	O
Rolleiflex	B-Algorithm
cameras	O
.	O
</s>
<s>
However	O
,	O
while	O
the	O
Rolleiflex	B-Algorithm
was	O
also	O
available	O
with	O
an	O
f/2.8	O
lens	O
,	O
the	O
Rolleicord	B-Algorithm
was	O
never	O
offered	O
with	O
a	O
larger	O
aperture	O
than	O
f/3.5	O
,	O
thus	O
ensuring	O
its	O
pedigree	O
as	O
an	O
"	O
amateur	O
"	O
camera	O
.	O
</s>
<s>
An	O
accessory	O
,	O
known	O
as	O
a	O
Rolleikin	O
kit	O
,	O
was	O
available	O
for	O
the	O
Rolleicord	B-Algorithm
(	O
and	O
the	O
Rolleiflex	B-Algorithm
)	O
to	O
enable	O
it	O
to	O
accept	O
35mm	O
film	O
.	O
</s>
