<s>
The	O
Ricoh	B-Algorithm
500	I-Algorithm
was	O
one	O
of	O
the	O
early	O
relatively	O
inexpensive	O
35mm	O
rangefinder	B-Algorithm
cameras	I-Algorithm
to	O
enter	O
the	O
U.S.	O
market	O
in	O
1957	O
.	O
</s>
<s>
Simply	O
setting	O
that	O
shutter	O
speed	O
without	O
changing	O
the	O
effective	O
lens	O
aperture	O
would	O
result	O
in	O
an	O
underexposure	O
,	O
but	O
the	O
Ricoh	B-Algorithm
500	I-Algorithm
will	O
automatically	O
change	O
the	O
aperture	O
setting	O
to	O
f/8	O
.	O
</s>
