<s>
A	O
lens	B-Algorithm
mount	I-Algorithm
is	O
an	O
interface	O
–	O
mechanical	O
and	O
often	O
also	O
electrical	O
–	O
between	O
a	O
photographic	O
camera	O
body	O
and	O
a	O
lens	O
.	O
</s>
<s>
It	O
is	O
a	O
feature	O
of	O
camera	O
systems	O
where	O
the	O
body	B-Algorithm
allows	I-Algorithm
interchangeable	I-Algorithm
lenses	I-Algorithm
,	O
most	O
usually	O
the	O
rangefinder	B-Algorithm
camera	I-Algorithm
,	O
single	B-Algorithm
lens	I-Algorithm
reflex	I-Algorithm
type	O
,	O
single	B-Algorithm
lens	I-Algorithm
mirrorless	O
type	O
or	O
any	O
movie	B-Application
camera	I-Application
of	O
16	O
mm	O
or	O
higher	O
gauge	O
.	O
</s>
<s>
Lens	B-Algorithm
mounts	I-Algorithm
are	O
also	O
used	O
to	O
connect	O
optical	O
components	O
in	O
instrumentation	O
that	O
may	O
not	O
involve	O
a	O
camera	O
,	O
such	O
as	O
the	O
modular	O
components	O
used	O
in	O
optical	O
laboratory	O
prototyping	O
which	O
join	O
via	O
C-mount	B-Algorithm
or	O
T-mount	B-Algorithm
elements	O
.	O
</s>
<s>
A	O
lens	B-Algorithm
mount	I-Algorithm
may	O
be	O
a	O
screw-threaded	O
type	O
,	O
a	O
bayonet-type	O
,	O
or	O
a	O
breech-lock	O
(	O
friction	O
lock	O
)	O
type	O
.	O
</s>
<s>
Modern	O
still	O
camera	O
lens	B-Algorithm
mounts	I-Algorithm
are	O
of	O
the	O
bayonet	O
type	O
,	O
because	O
the	O
bayonet	O
mechanism	O
precisely	O
aligns	O
mechanical	O
and	O
electrical	O
features	O
between	O
lens	O
and	O
body	O
.	O
</s>
<s>
Screw-threaded	O
mounts	O
are	O
fragile	O
and	O
do	O
not	O
align	O
the	O
lens	O
in	O
a	O
reliable	O
rotational	O
position	O
,	O
yet	O
types	O
such	O
as	O
the	O
C-mount	B-Algorithm
interface	O
are	O
still	O
widely	O
in	O
use	O
for	O
other	O
applications	O
like	O
video	O
cameras	O
and	O
optical	O
instrumentation	O
.	O
</s>
<s>
Lens	B-Algorithm
mounts	I-Algorithm
of	O
competing	O
manufacturers	O
(	O
Sony	O
,	O
Nikon	B-Algorithm
,	O
Canon	O
,	O
Contax/Yashica	O
,	O
Pentax	O
,	O
etc	O
.	O
)	O
</s>
<s>
In	O
addition	O
to	O
the	O
mechanical	O
and	O
electrical	O
interface	O
variations	O
,	O
the	O
flange	O
focal	O
distance	O
from	O
the	O
lens	B-Algorithm
mount	I-Algorithm
to	O
the	O
film	O
or	O
sensor	O
can	O
also	O
be	O
different	O
.	O
</s>
<s>
In	O
movie	B-Application
cameras	I-Application
,	O
the	O
two	O
most	O
popular	O
mounts	O
in	O
current	O
usage	O
on	O
professional	O
digital	O
cinematography	O
cameras	O
are	O
Arri	O
's	O
PL-mount	O
and	O
Panavision	O
's	O
PV-mount	O
.	O
</s>
<s>
Mount	O
nameFlange	O
focal	O
distanceFrame	O
sizeThroat	O
or	O
thread	O
diameterMount	O
thread	O
pitchMount	O
typePrimary	O
useCamera	O
linesCanon	O
SV	O
mm	O
BayonetPhotography	O
(	O
Digital	O
)	O
Canon	O
RC-701	O
&	O
760Argus	O
C3	O
mm35	O
mm	O
mm20	O
TPIScrewPhotographyArgus	O
C3Canon	O
EX	O
mm1/2	O
"	O
BayonetPhotographyCanon	O
FL	O
mm35	O
mm	O
mm	O
Breech	O
lockPhotography	O
Canon	B-Algorithm
FD	I-Algorithm
mm35	O
mm	O
mm	O
Breech	O
lockPhotographyCanon	O
F	O
series	O
,	O
A	O
series	O
,	O
and	O
T	B-Algorithm
series	O
SLRsCanon	O
FDn	O
(	O
a.k.a.	O
</s>
<s>
"	O
New	O
FD	O
"	O
)	O
mm35	O
mm	O
mmBayonetPhotographycompletely	O
interchangeable	O
with	O
earlier	O
FD	O
lensesCanon	O
EF	O
mm35	O
mm	O
mm	O
BayonetPhotographyCanon	O
EOS	O
35mm	O
film	O
SLR	B-Algorithm
,	O
Full	O
Frame	O
&	O
APS-H	O
DSLRCanon	O
EF-S	B-Algorithm
mmAPS-C	O
mm	O
BayonetPhotography	O
(	O
Digital	O
)	O
Canon	B-Algorithm
EOS	I-Algorithm
APS-C	B-Algorithm
DSLRCanon	O
EF-M	O
mmAPS-C	O
mm	O
BayonetPhotography	O
(	O
Digital	O
)	O
Canon	B-Algorithm
EOS	I-Algorithm
M	O
series	O
Mirrorless	O
APS-C	B-Algorithm
CamerasCanon	O
RF	O
mm35	O
mm	O
and	O
APS-C	B-Algorithm
mmBayonetPhotography	O
(	O
Digital	O
)	O
Canon	B-Algorithm
EOS	I-Algorithm
R	O
series	O
full-frame	O
and	O
APS-C	B-Algorithm
mirrorless	O
cameras	O
;	O
lenses	O
designated	O
as	O
RF-S	O
are	O
optimized	O
for	O
APS-C	B-Algorithm
sensors	O
,	O
but	O
will	O
mount	O
on	O
full-frame	O
bodiesNikon	O
S	B-Algorithm
mm35	O
mm	O
mm	O
BayonetPhotographyNikon	O
RangefinderNikon	O
F	O
mm35	O
mm	O
mm	O
BayonetPhotography	O
Nikon	B-Architecture
F	I-Architecture
35mm	O
film	O
SLR	B-Algorithm
,	O
Full	O
Frame	O
&	O
APS-C	B-Algorithm
DSLRNikon	O
1	O
mm13.2	O
x	O
8.8mm	O
mm	O
BayonetPhotography	O
(	O
Digital	O
)	O
Nikon	B-Algorithm
1	I-Algorithm
seriesNikon	O
Z	O
mm35	O
mm	O
mmBayonetPhotography	O
(	O
Digital	O
)	O
Nikon	B-Algorithm
Z	I-Algorithm
-	O
Mirrorless	O
Full	O
Frame	O
&	O
APS-CSony	O
Mavica	B-Algorithm
mm	O
BayonetPhotography	O
(	O
Digital	O
)	O
Sony	B-Algorithm
E	I-Algorithm
|	I-Algorithm
FE	I-Algorithm
mm35	O
mm	O
and	O
APS-C	B-Algorithm
mm	O
(	O
1.815	O
inch	O
)	O
BayonetPhotography	O
(	O
Digital	O
)	O
Sony	O
E/FE	O
Mount	O
Alpha	O
Mirrorless	O
Full	O
Frame	O
/	O
APS-C	B-Algorithm
|	O
Sony	B-Algorithm
NEX	I-Algorithm
Mirrorless	O
APS-CMinolta	O
SR	O
mm35	O
mm	O
mm	O
Bayonet	O
(	O
54°	O
)	O
PhotographyMinolta	O
SR/MC/MDMinolta	O
V	O
mmAPS-H	O
mm	O
BayonetPhotographyMinolta	O
VectisMinolta	O
A	O
mm35	O
mm	O
and	O
APS-C	B-Algorithm
mm	O
(	O
1.939	O
inch	O
)	O
Bayonet	O
(	O
54°	O
)	O
PhotographyMinolta	O
DSLR	O
AF/Alpha/Dynax/MaxxumSony	O
DSLR	O
Alpha	O
( α	O
)	O
A	O
MountPentax	O
Auto	O
110	O
mm110	O
film	O
mm	O
BayonetPhotographyPentax	O
Auto	O
110	O
and	O
Auto	O
110	O
SuperPentax	O
Q	O
mm1/2.3	O
"	O
,	O
1/1.7	O
"	O
mm	O
BayonetPhotography	O
(	O
Digital	O
)	O
Pentax	B-Algorithm
K	I-Algorithm
mm35	O
mm	O
and	O
APS-C	B-Algorithm
mm	O
BayonetPhotographyUsed	O
also	O
by	O
Ricoh	O
,	O
Chinon	O
,	O
Agfa	O
,	O
Vivitar	O
and	O
KMZ	O
Zenit	O
camerasLeitz	O
Visoflex	O
I	O
mm35	O
mmM3926	O
TPIScrewPhotographyLeitz	O
Visoflex	O
II/III	O
mm35	O
mm	O
mm	O
Bayonet	O
(	O
Leica	B-Algorithm
M	I-Algorithm
)	O
PhotographyLeica	O
M	O
mm35	O
mm	O
mm	O
BayonetPhotographyLeica	O
M	O
seriesLeica	O
CLMinolta	O
CLELeica	O
R	O
mm35	O
mm	O
mm	O
BayonetPhotographyLeica	O
L	O
mm35	O
mm	O
and	O
APS-C	B-Algorithm
mm	O
BayonetPhotography	O
(	O
Digital	O
)	O
L-Mount	B-Algorithm
Alliance	O
(	O
Leica	O
,	O
Panasonic	O
and	O
Sigma	O
Mirrorless	O
)	O
Contax	O
RF	O
mm	O
35	O
mm44	O
mm	O
Double	O
bayonetPhotographyContax	O
I	O
,	O
II	O
,	O
III	O
,	O
IIa	O
,	O
IIIaKiev	O
rangefindersContax	O
G	O
mm35	O
mm	O
mm	O
Breech	O
lockPhotographyContax	O
N	O
mm35	O
mm	O
mm	O
BayonetPhotographyContax/Yashica	O
mm35	O
mm	O
mm	O
BayonetPhotographyYashica/ContaxYashica	O
MA	O
~	O
45.8	O
mm35	O
mm	O
BayonetPhotographyKyocera	O
Yashica	O
230	O
AF	O
etc.Fujica	O
X	O
mm35	O
mm	O
mm	O
BayonetPhotographyFujica-XFujifilm	O
X	O
mmAPS-C	O
mm	O
BayonetPhotography	O
(	O
Digital	O
)	O
Fujifilm	B-Device
X	I-Device
series	I-Device
mirrorlessOlympus	O
Pen	O
F	O
mm35	O
mm	O
half-frame	O
BayonetPhotographyOlympus	O
OM	O
mm35	O
mm	O
mm	O
BayonetPhotographyFour	O
Thirds	O
mm17.3	O
mm	O
×	O
12.98	O
mm	O
~	O
44	O
mm	O
BayonetPhotography	O
(	O
Digital	O
)	O
Olympus	O
EPanasonic	O
Lumix	O
DMC-LLeica	O
DigiluxMicro	O
Four	B-Architecture
Thirds	I-Architecture
mm17.3	O
mm	O
×	O
12.98	O
mm	O
~	O
38	O
mm	O
BayonetPhotography	O
(	O
Digital	O
)	O
Olympus	O
Pen	O
&	O
OM-D	O
seriesPanasonic	O
G	O
,	O
GF	O
,	O
GX	O
&	O
GH	O
SeriesBlackmagic	O
Design	O
Cinema	O
CameraKM	O
mm	O
(	O
27.80	O
mm	O
?	O
</s>
<s>
)	O
35	O
mm	O
mm	O
BayonetPhotographyKonica	O
Hexar	O
RFKonica	O
F	O
mm35	O
mm	O
mm	O
BayonetPhotographyKonica	O
FKonica	O
AR	O
mm35	O
mm	O
mm	O
BayonetPhotographyKonica	O
AutoreflexSamsung	O
NX	B-Algorithm
mini	I-Algorithm
mm1	O
"	O
mm	O
Bayonetphotography	O
(	O
Digital	O
)	O
Samsung	B-Algorithm
NX	I-Algorithm
mmAPS-C	O
mm	O
BayonetPhotography	O
(	O
Digital	O
)	O
Samsung	O
Kenox	O
mm35	O
mm	O
BayonetPhotographyManual	O
focus	O
only	O
;	O
there	O
is	O
only	O
one	O
compatible	O
camera	O
-	O
Samsung	O
Kenox	O
GX-1/Samsung	O
SR4000.Icarex	O
BM	O
mm35	O
mm	O
mm	O
Breech	O
lockPhotographyIcarex	O
35SD	O
mm8	O
mm	O
mm	O
(	O
0.625	O
inch	O
)	O
32	O
TPIScrewCinematography	O
CS6	O
mm1/3	O
"	O
,	O
1/2	O
"	O
mm	O
(	O
1	O
inch	O
)	O
32	O
TPIScrewCinematography	O
/	O
Industrial	O
C	B-Algorithm
mm	O
(	O
0.69	O
inches	O
)	O
1/2	O
"	O
,	O
16	O
mm	O
,	O
2/3	O
"	O
,	O
1	O
"	O
mm	O
(	O
1	O
inch	O
)	O
32	O
TPIScrewCinematography	O
/	O
Industrial	O
/	O
Machine	B-General_Concept
Vision	I-General_Concept
S	B-Algorithm
(	O
a.k.a.	O
</s>
<s>
Back	O
focal	O
distance	O
from	O
<	O
1mm	O
to	O
12mm.1/6	O
"	O
to	O
1	O
"	O
12	O
mm	O
0.5	O
mm	O
pitchScrewCCTV	O
,	O
PCBEdmund	O
Optics	O
μ-VideoBolex	O
Bajonet	O
mm16	O
mm	O
Breech	O
lockCinematographyeffective	O
focal	O
distance	O
mm	O
(	O
0.69	O
inches	O
)	O
due	O
to	O
beam	O
splitter	O
behind	O
mount	O
flange	O
(	O
accepts	O
C-mount	B-Algorithm
lenses	O
with	O
adapter	O
)	O
1/3	O
"	O
bayonet	O
mount	O
mm1/3	O
"	O
(	O
x2.94	O
)	O
BayonetVideoJVC	O
professional	O
video	O
camerasM39	O
(	O
a.k.a.	O
</s>
<s>
L-Mount	B-Algorithm
,	O
LTM	O
)	O
mm35	O
mmM3926	O
TPIScrewPhotographyLeica	O
M39	B-Algorithm
screw	O
mountNarciss	O
mm16	O
mmM241	O
mmScrewPhotography1/2	O
"	O
bayonet	O
mount	O
mm1/2	O
"	O
(	O
x3.92	O
)	O
BayonetVideoNon-Sony	O
professional	O
video	O
camerasAlpa	O
mm35	O
mm	O
mm	O
BayonetPhotographySony	O
1/2	O
"	O
Video	O
mm1/2	O
"	O
(	O
x3.92	O
)	O
BayonetVideoSony	O
professional	O
video	O
camerasAaton	O
universal	O
mm16	O
mm	O
mm	O
Breech	O
lockCinematographyMiranda	O
bayonet/M44	O
mm35	O
mm	O
and	O
APS-C	B-Algorithm
BayonetPhotographyMiranda	O
Camera	O
CompanyPetriflex	O
mm35	O
mm	O
Breech	O
lockPhotographySigma	O
SA	O
mm35	O
mm	O
mm	O
BayonetPhotographySigma	O
SAPaxette	O
mm35	O
mmM391	O
mmScrewPhotographyPraktiflex	O
mm35	O
mmM401	O
mmScrewPhotographyPraktica	O
mm35	O
mm	O
mm	O
BayonetPhotographyExakta	O
,	O
Topcon	O
RE	O
mm35	O
mm	O
mm	O
BayonetPhotographyZenit	O
M39	B-Algorithm
mm35	O
mmM391	O
mmScrewPhotographyM37	O
mm35	O
mm	O
mm1	O
mmScrewPhotographyAsahiflexM42	O
mm35	O
mm	O
mm1	O
mmScrewPhotographyPraktica	O
,	O
The	O
M42	B-Algorithm
(	O
Praktica	O
)	O
mount	O
is	O
sometimes	O
referred	O
to	O
as	O
a	O
"	O
P	O
"	O
thread	O
.	O
</s>
<s>
See	O
,	O
e.g.	O
,	O
Pentax	O
,	O
ZenitB4-mount	O
mm2/3	O
"	O
(	O
x5.4	O
)	O
BayonetVideoProfessional	O
and	O
broadcast	O
video	O
camerasPraktina	O
mm35	O
mm	O
mm	O
Breech	O
lockPhotographyT-Thread	O
(	O
Very	O
earliest	O
type	O
)	O
mm35	O
mmM370.75mmScrewPhotographyTamronAdapt-A-Matic	O
mm35	O
mm	O
mm	O
BayonetPhotographyTamronAdaptall	O
&	O
Adaptall-2	O
mm35	O
mm	O
mm	O
BayonetPhotographyTamronArri	O
standard	O
mm35	O
mm	O
and	O
16	O
mm	O
mm	O
Tab	O
lockCinematographyArri	O
bayonet	O
mm35	O
mm	O
and	O
16	O
mm	O
mm	O
BayonetCinematographyArri	O
PL	O
mm35	O
mm	O
and	O
16	O
mm	O
mm	O
Breech	O
lockCinematographyArri	O
LPL	O
mmArri	O
LF	O
mm	O
Breech	O
lockCinematographyArri	O
Maxi	O
PL	O
mm70	O
mm	O
mm	O
CinematographyT	O
mm35	O
mm	O
mm0.75	O
mmScrewPhotographyTamronYS	O
Auto	O
T-Thread	B-Algorithm
mm35	O
mm	O
mm0.75	O
mmScrewPhotographySigma	O
CorporationT-thread	O
mm35	O
mm	O
mm0.75	O
mmScrewPhotographyTokinaH-Mount	O
mm35	O
mm	O
mm0.75	O
mmScrewPhotographyHanimex	O
(	O
rebranding	O
of	O
Tokina	O
M47	O
)	O
Panavision	O
PV	O
mm35	O
mm	O
mm	O
Breech	O
lockCinematographyB3-mount	O
mm2/3	O
"	O
Reverse	O
bayonetVideoIkegamiMitchell	O
BNCR	O
mm35	O
mm	O
mm	O
Breech	O
lockCinematography	O
Zeiss	O
Panflex	O
5522/23	O
for	O
Contax	O
RF	O
mm	O
35	O
mm	O
Double	O
bayonetPhotographyKowa	O
Six/Super	O
66	O
mm6×6	O
Breech	O
lockPhotographyHasselblad	O
mm6×6	O
mm	O
BayonetPhotographyHasselblad	O
Xpan	O
mm35	O
mm	O
panoramic	O
mm	O
BayonetPhotographyBronica	O
ETR	O
mm6×	O
4.5	O
mm	O
BayonetPhotographyBronica	O
RF	O
mm6×	O
4.5	O
mm	O
BayonetPhotographyBronica	O
SQA	O
mm6×6	O
mm	O
BayonetPhotographyBronica	O
GS1	O
mm6×7	O
mm	O
BayonetPhotographyMamiya	O
645	O
mm6×	O
4.5	O
mm	O
BayonetPhotographyMamiya	O
6	O
mm	O
(	O
approx	O
.	O
</s>
<s>
CCTV	O
systems	O
and	O
machine	B-General_Concept
vision	I-General_Concept
,	O
a	O
range	O
of	O
metric	O
thread	O
mounts	O
exists	O
.	O
</s>
<s>
The	O
axial	O
adjustment	O
range	O
for	O
focusing	O
Ultra	O
wide	O
angle	O
lenses	O
and	O
some	O
Wide-angle	O
lenses	O
in	O
large	B-Algorithm
format	I-Algorithm
cameras	I-Algorithm
is	O
usually	O
very	O
small	O
.	O
</s>
<s>
Linhof	O
)	O
offered	O
special	O
focusing	B-Algorithm
lens	I-Algorithm
mounts	I-Algorithm
,	O
so-called	O
wide-angle	O
focusing	O
accessories	O
for	O
their	O
cameras	O
.	O
</s>
<s>
Secondary	O
lens	O
refers	O
to	O
a	O
multi-element	O
lens	O
mounted	O
either	O
in	O
front	O
of	O
a	O
camera	O
's	O
primary	O
lens	O
,	O
or	O
in	O
between	O
the	O
camera	O
body	O
and	O
the	O
primary	O
lens	O
.	O
</s>
<s>
(	O
D	O
)	O
SLR	B-Algorithm
camera	I-Algorithm
&	O
interchangeable-lens	O
manufacturers	O
offer	O
lens	O
accessories	O
like	O
extension	O
tubes	O
and	O
secondary	O
lenses	O
like	O
teleconverters	O
,	O
which	O
mount	O
in	O
between	O
the	O
camera	O
body	O
and	O
the	O
primary	O
lens	O
,	O
both	O
using	O
and	O
providing	O
a	O
primary	O
lens	B-Algorithm
mount	I-Algorithm
.	O
</s>
<s>
Canon	B-Device
PowerShot	I-Device
A	I-Device
and	O
Canon	B-Device
PowerShot	I-Device
G	I-Device
cameras	O
have	O
a	O
built-in	O
or	O
non-interchangeable	O
primary	O
(	O
zoom	O
)	O
lens	O
,	O
and	O
Canon	O
has	O
"	O
conversion	O
tube	O
"	O
accessories	O
available	O
for	O
some	O
Canon	B-Algorithm
PowerShot	I-Algorithm
camera	O
models	O
which	O
provide	O
either	O
a	O
52mm	O
or	O
58mm	O
"	O
accessory/filter	O
"	O
screw	O
thread	O
.	O
</s>
<s>
Canon	O
's	O
close-up	O
,	O
wide	O
-	O
(	O
WC-DC	O
)	O
,	O
and	O
tele-conversion	O
(	O
TC-DC	O
)	O
lenses	O
have	O
2	O
,	O
3	O
,	O
and	O
4-element	O
lenses	O
respectively	O
,	O
so	O
they	O
are	O
multi-element	O
lenses	O
and	O
not	O
diopter	O
"	O
filters	O
"	O
.	O
</s>
<s>
Lens	B-Algorithm
mount	I-Algorithm
adapters	O
are	O
designed	O
to	O
attach	O
a	O
lens	O
to	O
a	O
camera	O
body	O
with	O
non-matching	O
mounts	O
.	O
</s>
