<s>
The	O
Nikon	B-Algorithm
FM2	O
is	O
an	O
advanced	O
semi-professional	O
,	O
interchangeable	O
lens	O
,	O
35	O
mm	O
film	O
,	O
single-lens	B-Algorithm
reflex	I-Algorithm
(	O
SLR	B-Algorithm
)	O
camera	O
.	O
</s>
<s>
It	O
was	O
manufactured	O
by	O
Nippon	O
Kogaku	O
K	O
.	O
K	O
.	O
(	O
today	O
Nikon	B-Algorithm
Corporation	O
)	O
in	O
Japan	O
from	O
1982	O
to	O
2001	O
.	O
</s>
<s>
The	O
FM2	O
originally	O
used	O
an	O
advanced	O
Nikon-design	O
,	O
metal-bladed	O
,	O
bearing-mounted	O
,	O
vertical-travel	O
purely	O
mechanical	O
focal	O
plane	O
shutter	O
with	O
a	O
(	O
then	O
unheard-of	O
)	O
speed	O
range	O
of	O
1	O
to	O
1/4000th	O
second	O
plus	O
Bulb	O
,	O
plus	O
a	O
fast	O
flash	O
X-sync	O
of	O
1/250th	O
second	O
.	O
</s>
<s>
Note	O
that	O
SLRs	B-Algorithm
are	O
usually	O
sold	O
for	O
30	O
to	O
40	O
percent	O
below	O
list	O
price	O
.	O
</s>
<s>
The	O
FM2	O
is	O
a	O
member	O
of	O
the	O
classic	O
Nikon	B-Algorithm
compact	O
F'x'-series	O
SLRs	B-Algorithm
and	O
was	O
built	O
using	O
the	O
same	O
material	O
—	O
copper-aluminium-silicon	O
(	O
copper-silumin	O
)	O
alloy	O
—	O
as	O
the	O
earlier	O
Nikon	B-Algorithm
FM	I-Algorithm
(	O
introduced	O
in	O
1977	O
)	O
and	O
FE	B-Algorithm
(	O
1978	O
)	O
cameras	O
.	O
</s>
<s>
The	O
Nikon	B-Algorithm
FE2	I-Algorithm
and	O
FA	B-Algorithm
of	O
1983	O
also	O
had	O
this	O
silumin	O
alloy	O
construction	O
,	O
along	O
with	O
the	O
limited	O
production	O
Nikon	B-Algorithm
FM3A	I-Algorithm
of	O
2001	O
,	O
although	O
the	O
design	O
of	O
the	O
housing	O
differs	O
from	O
model	O
to	O
model	O
.	O
</s>
<s>
Like	O
its	O
predecessor	O
,	O
the	O
FM	B-Algorithm
,	O
the	O
FM2n	O
has	O
a	O
long-standing	O
reputation	O
for	O
reliability	O
and	O
durability	O
.	O
</s>
<s>
The	O
camera	O
's	O
precision-tapered	O
,	O
high-strength	O
vertical	O
metal	O
shutter	O
blades	O
were	O
fabricated	O
originally	O
of	O
lightweight	O
titanium	O
(	O
later	O
production	O
FM2	O
shutter	O
blades	O
were	O
made	O
of	O
aluminum	O
,	O
the	O
same	O
as	O
those	O
found	O
in	O
the	O
Nikon	B-Algorithm
N8008	O
)	O
,	O
while	O
the	O
mirror/shutter	O
mechanism	O
rides	O
on	O
self-lubricating	O
bearings	O
.	O
</s>
<s>
The	O
mirror	O
linkage	O
uses	O
the	O
same	O
mechanism	O
found	O
on	O
Nikon	B-Algorithm
's	O
professional	O
F2	O
,	O
with	O
some	O
modern	O
improvements	O
,	O
such	O
as	O
additional	O
foam	O
dampeners	O
,	O
designed	O
to	O
further	O
reduce	O
effects	O
of	O
vibration	O
and	O
mirror	O
bounce	O
.	O
</s>
<s>
The	O
FM2	O
also	O
features	O
Nikon	B-Algorithm
's	O
close	O
tolerance	O
assembly	O
and	O
minimal	O
space	O
lubrication	O
,	O
meaning	O
that	O
it	O
will	O
reliably	O
operate	O
in	O
temperature	O
extremes	O
of	O
−40°C	O
to	O
+50°C	O
.	O
</s>
<s>
The	O
FM2	O
accepts	O
all	O
Nikon	B-Architecture
F	I-Architecture
bayonet	I-Architecture
mount	I-Architecture
lenses	O
that	O
support	O
the	O
Automatic	O
Indexing	O
(	O
AI	O
)	O
feature	O
introduced	O
in	O
1977	O
.	O
</s>
<s>
The	O
Nikon-made	O
AI	O
lenses	O
of	O
this	O
type	O
are	O
the	O
AF-S	O
Nikkor	O
,	O
AF-I	O
Nikkor	O
,	O
AF	O
Nikkor	O
D	O
,	O
AF	O
Nikkor	O
,	O
Nikkor	O
AI-S	O
,	O
Nikkor	O
AI	O
and	O
Nikon	B-Algorithm
Series	O
E	O
types	O
.	O
</s>
<s>
Nikon	B-Algorithm
's	O
most	O
recent	O
35mm	O
film	O
SLR	B-Algorithm
lenses	O
,	O
the	O
AF	O
Nikkor	O
G	O
type	O
(	O
introduced	O
in	O
2000	O
)	O
and	O
the	O
AF	O
Nikkor	O
DX	O
type	O
(	O
2003	O
)	O
will	O
mount	O
but	O
will	O
not	O
function	O
properly	O
.	O
</s>
<s>
IX	O
Nikkor	O
lenses	O
(	O
1996	O
)	O
,	O
for	O
Nikon	B-Algorithm
's	O
Advanced	O
Photo	O
System	O
(	O
APS	O
)	O
film	O
SLRs	B-Algorithm
,	O
must	O
not	O
be	O
mounted	O
,	O
as	O
their	O
rear	O
elements	O
will	O
intrude	O
far	O
enough	O
into	O
the	O
mirror	O
box	O
to	O
cause	O
damage	O
.	O
</s>
<s>
During	O
the	O
early	O
1980s	O
,	O
Nippon	O
Kogaku	O
manufactured	O
approximately	O
70	O
different	O
types	O
of	O
manual	O
focus	O
Nikkor	O
AI-S	O
and	O
Nikon	B-Algorithm
Series	O
E	O
branded	O
lenses	O
.	O
</s>
<s>
Accessories	O
for	O
the	O
FM2	O
included	O
the	O
Nikon	B-Algorithm
MD-12	O
motor	O
drive	O
(	O
automatic	O
film	O
advance	O
up	O
to	O
3.2	O
frames	O
per	O
second	O
)	O
,	O
the	O
Nikon	B-Algorithm
MF-16	O
databack	O
(	O
sequential	O
numbering	O
,	O
time	O
or	O
date	O
stamping	O
on	O
the	O
film	O
)	O
,	O
and	O
the	O
Nikon	B-Algorithm
SB-15	O
(	O
guide	O
number	O
82/25	O
(	O
feet/meters	O
)	O
at	O
ASA/ISO	O
100	O
)	O
and	O
Nikon	B-Algorithm
SB-16B	O
(	O
guide	O
number	O
105/32	O
(	O
feet/meters	O
)	O
at	O
ASA/ISO	O
100	O
)	O
electronic	O
flashes	O
.	O
</s>
<s>
The	O
FM2	O
is	O
a	O
mechanically	O
controlled	O
manual	O
focus	O
SLR	B-Algorithm
with	O
manual	O
exposure	O
control	O
.	O
</s>
<s>
The	O
viewfinder	O
also	O
had	O
Nikon	B-Algorithm
's	O
standard	O
interchangeable	O
focus	O
screen	O
with	O
various	O
focusing	O
options	O
.	O
</s>
<s>
The	O
major	O
improvements	O
in	O
the	O
FM2	O
compared	O
to	O
the	O
FM	B-Algorithm
were	O
limited	O
automatic	O
dedicated	O
electronic	O
flash	O
control	O
and	O
a	O
mechanically	O
timed	O
vertical	O
metal	O
shutter	O
(	O
bearing	O
mounted	O
for	O
reduced	O
friction	O
and	O
extended	O
life	O
)	O
reaching	O
a	O
top	O
speed	O
of	O
an	O
unprecedented	O
1/4000th	O
second	O
,	O
with	O
an	O
X-sync	O
of	O
1/250th	O
second	O
.	O
</s>
<s>
The	O
improved	O
titanium-bladed	O
shutter	O
from	O
the	O
Nikon	B-Algorithm
FE2	I-Algorithm
was	O
adapted	O
to	O
the	O
FM2	O
in	O
1984	O
and	O
X-sync	O
increased	O
to	O
1/250th	O
second	O
.	O
</s>
<s>
The	O
new	O
camera	O
was	O
renamed	O
the	O
Nikon	B-Algorithm
FM2n	O
(	O
New	O
FM2	O
in	O
the	O
Japanese	O
market	O
)	O
,	O
but	O
remained	O
marked	O
FM2	O
.	O
</s>
<s>
The	O
Nikon	B-Algorithm
FM2/T	I-Algorithm
listed	O
for	O
$1120	O
and	O
was	O
discontinued	O
in	O
1997	O
.	O
</s>
<s>
The	O
1970s	O
and	O
1980s	O
were	O
an	O
era	O
of	O
intense	O
competition	O
between	O
the	O
major	O
SLR	B-Algorithm
brands	O
:	O
Nikon	B-Algorithm
,	O
Canon	O
,	O
Minolta	O
,	O
Pentax	B-Application
and	O
Olympus	O
.	O
</s>
<s>
SLR	B-Algorithm
camera	I-Algorithm
manufacturers	O
were	O
attempting	O
to	O
expand	O
from	O
the	O
high-end	O
professional	O
and	O
semi-professional	O
market	O
to	O
the	O
growing	O
consumer	O
market	O
.	O
</s>
<s>
The	O
latter	O
desired	O
an	O
affordable	O
,	O
yet	O
full-featured	O
35mm	O
camera	O
,	O
but	O
were	O
intimidated	O
by	O
the	O
need	O
to	O
learn	O
the	O
intricacies	O
of	O
operating	O
a	O
traditional	O
SLR	B-Algorithm
.	O
</s>
