<s>
The	O
Minolta	B-Algorithm
X-570	I-Algorithm
(	O
X-500	O
in	O
Europe	O
)	O
was	O
introduced	O
in	O
1983	O
as	O
a	O
lower	O
cost	O
alternative	O
to	O
the	O
X-700	B-Algorithm
.	O
</s>
<s>
The	O
primary	O
difference	O
between	O
the	O
top-of-the-line	O
X-700	B-Algorithm
and	O
the	O
X-570	O
is	O
that	O
the	O
latter	O
lacked	O
the	O
fully	O
automatic	O
Program	O
exposure	O
mode	O
.	O
</s>
<s>
However	O
,	O
the	O
X-570	O
added	O
an	O
important	O
feature	O
that	O
would	O
be	O
part	O
of	O
all	O
subsequent	O
X	O
series	O
cameras	O
,	O
but	O
never	O
added	O
to	O
the	O
X-700	B-Algorithm
,	O
a	O
match	O
LED	O
exposure	O
meter	O
.	O
</s>
<s>
Some	O
consider	O
the	O
X-500	O
more	O
of	O
an	O
enthusiast	O
's	O
camera	O
than	O
the	O
X-700	B-Algorithm
,	O
since	O
it	O
offered	O
no	O
P	O
mode	O
and	O
therefore	O
required	O
some	O
photographic	O
knowledge	O
.	O
</s>
