<s>
The	O
Mamiya	B-Algorithm
C330	I-Algorithm
Professional	O
is	O
a	O
traditional	O
film	O
twin-lens	B-Algorithm
reflex	I-Algorithm
camera	I-Algorithm
introduced	O
in	O
the	O
1970s	O
for	O
the	O
professional	O
and	O
advanced	O
amateur	O
photography	O
markets	O
.	O
</s>
<s>
The	O
Mamiya	O
C-series	O
cameras	O
are	O
one	O
of	O
the	O
very	O
few	O
twin-lens	B-Algorithm
reflex	I-Algorithm
cameras	I-Algorithm
with	O
interchangeable	O
lenses	O
,	O
along	O
with	O
the	O
Koni-Omegaflex	O
and	O
Zeiss	O
Contaflex	O
.	O
</s>
<s>
The	O
C330	O
camera	O
has	O
two	O
shutter	O
release	O
buttons	O
,	O
an	O
automatic	O
conversion	O
film	O
counter	O
120/220	O
,	O
an	O
indicator	O
of	O
the	O
film	O
in	O
use	O
,	O
a	O
removable	O
back	O
cover	O
,	O
a	O
hexagonal	O
distance	O
scale	O
rod	O
for	O
the	O
different	O
lenses	O
,	O
automatic	O
parallax	B-Device
compensation	O
,	O
an	O
automatic	O
exposure	O
factor	O
indicator	O
and	O
interchangeable	O
focusing	O
screens	O
.	O
</s>
