<s>
The	O
Olympus	B-Algorithm
OM-3	I-Algorithm
is	O
a	O
single-lens	B-Algorithm
reflex	I-Algorithm
film	O
system	O
camera	O
produced	O
by	O
Olympus	O
of	O
Japan	O
since	O
the	O
80s	O
.	O
</s>
<s>
It	O
is	O
part	O
of	O
the	O
Olympus	B-Algorithm
OM	I-Algorithm
system	I-Algorithm
.	O
</s>
<s>
The	O
Olympus	B-Algorithm
OM-3	I-Algorithm
is	O
a	O
manual	O
camera	O
without	O
automatic	O
exposure	O
modes	O
,	O
and	O
an	O
entirely	O
mechanical	O
shutter	O
.	O
</s>
<s>
Introduced	O
in	O
1983	O
,	O
the	O
OM-3	B-Algorithm
was	O
the	O
first	O
of	O
a	O
new	O
series	O
of	O
professional	O
camera	O
bodies	O
designed	O
to	O
update	O
the	O
OM-1	B-Algorithm
and	O
OM-2	B-Algorithm
.	O
</s>
<s>
These	O
new	O
bodies	O
,	O
which	O
continued	O
with	O
the	O
more	O
popular	O
OM-4	B-Algorithm
,	O
included	O
a	O
number	O
of	O
refinements	O
over	O
their	O
predecessors	O
.	O
</s>
<s>
The	O
OM-3	B-Algorithm
and	O
OM-4	B-Algorithm
featured	O
multi-spot	O
metering	O
in	O
addition	O
to	O
the	O
centre-weighted	O
metering	O
on	O
the	O
earlier	O
bodies	O
.	O
</s>
<s>
The	O
metering	O
system	O
used	O
a	O
liquid	O
crystal	O
display	O
in	O
place	O
of	O
the	O
older	O
match	O
needle	O
design	O
of	O
the	O
OM-1	B-Algorithm
and	O
OM-2	B-Algorithm
.	O
</s>
<s>
Other	O
refinements	O
were	O
also	O
present	O
,	O
including	O
a	O
faster	O
maximum	O
shutter	O
speed	O
of	O
1/2000	O
second	O
and	O
a	O
built	O
in	O
flash	O
hot	B-Algorithm
shoe	I-Algorithm
.	O
</s>
<s>
The	O
OM-3	B-Algorithm
sold	O
in	O
smaller	O
quantities	O
than	O
its	O
electronic	O
sister	O
,	O
the	O
OM-4	B-Algorithm
.	O
</s>
<s>
This	O
may	O
be	O
because	O
the	O
OM-1n	O
remained	O
in	O
production	O
and	O
offered	O
an	O
alternative	O
mechanical	O
body	O
for	O
the	O
OM	B-Algorithm
system	I-Algorithm
at	O
a	O
fraction	O
of	O
the	O
price	O
,	O
albeit	O
with	O
less	O
sophisticated	O
metering	O
.	O
</s>
<s>
After	O
a	O
relatively	O
short	O
production	O
run	O
,	O
the	O
OM-3	B-Algorithm
was	O
discontinued	O
in	O
1986	O
.	O
</s>
<s>
As	O
a	O
result	O
,	O
OM-3	B-Algorithm
bodies	O
today	O
are	O
much	O
rarer	O
than	O
OM-4s	O
,	O
and	O
those	O
in	O
good	O
condition	O
are	O
highly	O
sought	O
after	O
by	O
collectors	O
.	O
</s>
<s>
In	O
1995	O
,	O
the	O
OM-3Ti	O
was	O
released	O
,	O
an	O
improvement	O
of	O
the	O
OM-3	B-Algorithm
,	O
which	O
was	O
in	O
production	O
until	O
2002	O
.	O
</s>
