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Pentax Pencil
Pentax Pencil
Lens Mount
List of lens mount types
These types are organized by category; find details in the section that follows.
Stills
Canon EF
Canon EF-S
Canon FD
Canon FL
Contax N
Contax/Yashica bayonet
Four Thirds System
Fujica X bayonet
Konica original bayonet
Konica AR 47mm bayonet
Leica M mount
Leica M39 screw mount
Leica R bayonet
M42
Mamiya bayonet
Micro Four Thirds System
Minolta AF
Minolta V
Minolta MD
Miranda bayonet (all Miranda cameras had a dual bayonet/M44 screw mount)
Nikon F
Nikon S
Olympus OM
Pentax K
Sigma SA
T-mount (T-thread)
Yashica AF
Cine
Aaton universal
Arri bayonet
Arri PL
Arri standard
B4
BNCR
C mount
CA-1
PV (Panavision)
Industrial
C mount
CS mount
Front-plate mount
List of lens mounts
This list of lens mounts is ordered by flange focal distance, from shortest to longest. It includes both digital, still photography and movie lens mounts.
OEM
model
line(s)
Interchangeable
type
name
Frame
size
Camera
type
Throat
or
thread
diameter
Mount
thread
pitch
Mount
type
Flange
focal distance
D mount
8 mm
movie and CCTV
0.625 inch
32 TPI
Screw
12.29 mm
CS mount
16 mm
movie and CCTV
1 inch
32 TPI
Screw
12.52 mm
C mount
16 mm
movie and CCTV
1 inch
32 TPI
Screw
17.526 mm (0.69 inches)
Canon EX
Camcorder
Bayonet
20 mm
Olympus E-P1, Panasonic G1, GH1, GF1
Micro Four Thirds
17.3mm x 12.98mm
digital still
~38mmA[
Bayonet
20 mm
Bolex
16 mm
movie
Breech lock
23.22 mm
Samsung NX
23.4mm x 15.6mm APS-C
digital still
Bayonet
25.5 mm
Leica M bayonet
35 mm
still
44 mm
Bayonet
27.8 mm
Canon screw mount
35 mm
still
M39
1 mm
Screw
Leica M39 screw mount
35 mm
still, enlargers
M39
26 TPI
Screw
28.8 mm
Narciss
16 mm
still
M24
1 mm
Screw
28.8 mm
Olympus Pen F
35 mm half-frame
still
Bayonet
28.95 mm
Contax G
35 mm
still
Breech lock
29.00 mm
Hasselblad Xpan
35 mm panoramic
still
Bayonet
34.27 mm
Alpa
35 mm
still
Bayonet
37.80 mm
Minolta Vectis
30.2mm 16.7mm APS
still
Bayonet
38mm
Olympus E, Panasonic Lumix DMC-L, Leica Digilux
Four Thirds
17.3mm x 12.98mm
digital still
~44mmA[
Bayonet
38.67 mm
Aaton universal
16 mm
movie
Breech lock
40 mm
Konica A/R
35 mm
still
Bayonet
40.7 mm
Canon R
35 mm
still
Breech lock
42 mm
Canon FL
35 mm
still
Breech lock
42 mm
Canon FD
35 mm
still
Breech lock
42 mm
Fujica-X
35 mm
still
Bayonet
43.5 mm
Minolta SR/MC/MD
35 mm
still
Bayonet
43.5 mm
Petriflex
35 mm
still
Breech lock
43.5 mm
Canon EF
35 mm
still
54mm
Bayonet
44 mm
Canon EF-S
APS-C
digital still
54mm
Bayonet
44 mm
Sigma SA
35 mm
still
Bayonet
44 mm
Paxette
35 mm
still
M39
1 mm
Screw
44 mm
Praktica B
35 mm
still
Bayonet
44.4 mm
Minolta AF, Sony Alpha
35 mm
still
Bayonet
44.5 mm
Rolleiflex SL35
35 mm
still
Bayonet
44.6 mm
Exakta, Topcon
35 mm
still
Bayonet
44.7 mm
Pentax K
35 mm
still
Bayonet
45.5 mm
Asahiflex
35 mm
still
37 mm
1 mm
Screw
45.5 mm
Praktica
M42 lens mount
35 mm
still
42 mm
1 mm
Screw
45.5 mm
Yashica/Contax
35 mm
still
Bayonet
45.5 mm
Mamiya ZE
35 mm
still
Bayonet
45.5 mm
Olympus OM
35 mm
still
46 mm
Bayonet
46 mm
Nikon F-mount
35 mm
still
44mm
Bayonet
46.5 mm
Leica R
35 mm
still
Bayonet
47 mm
Contax-N
35 mm
still
Bayonet
48 mm
Praktina
35 mm
still
Breech lock
50 mm
Arri standard
35 mm and 16 mm
movie
Tab lock
52 mm
Arri bayonet
35 mm and 16 mm
movie
Bayonet
52 mm
Arri PL
35 mm and 16 mm
movie
Breech lock
52 mm
Tamron
T2, T-mount or T-thread
35 mm
still
42mm
0.75 mm
Screw
55 mm
Panavision PV mount
35 mm
movie
Breech lock
57.15 mm
Mamiya 7/7II
Medium format
still
Bayonet
60 mm(approx.)
Mitchell BNCR mount
35 mm
movie
Breech lock
61.468 mm
Mamiya 645
Medium format
still
Bayonet
63.3 mm
Leitz Visoflex II/III
35 mm
still
Bayonet (Leica M)
68.8 mm
Pentax 645
Medium format
still
Bayonet
70.87 mm
Arri Maxi PL
70 mm
movie
64mm
73.5 mm
Pentacon Six
Medium format
still
Breech lock
74.1 mm
Hasselblad
Medium format
still
Bayonet
74.9 mm
Kowa Six/Super 66
Medium format
still
breech lock
79 mm
Pentax 6×7
Medium format
still
Bayonet
84.95 mm
Leitz Visoflex I
35 mm
still
M39
26 TPI
Screw
91.3 mm
Bronica S2A
Medium format
still
57
1
Bayonet
101.7 mm
Rolleiflex SL66
Medium format
still
Bayonet
102.8 mm
Mamiya RZ
Medium format
still
Bayonet
105 mm
Mamiya RB
Medium format
still
Bayonet
112 mm
Legend
Legend
Column
Description
OEM model line(s)
primary manufacturer(s) or model line(s) with this mount
Interchangeable type name
interchangeable mounts used by multiple camera body and lens manufacturers
Frame size
maximum or typical film or image sensor format or size used for this mount
Camera type
digital, still, movie, CCTV, …
Throat or thread diameter
Nominal inside-female or outside-male major diameter (D) with units: inch, mm, or M (ISO 68-1 metric thread pitch mm)
Mount thread pitch
(P) either: (Unified-thread) pitch count/inch, or (metric) mm/thread pitch
Mount type
Bayonet, Breech, Screw, …
Flange focal distance
Nominal (mm) distance from film or image sensor to lens mount
Secondary lens mount
Secondary lens refers to a multi-element lens mounted either in front of a camera’s primary lens, or in between the camera body and the primary lens.
(D)SLR camera & interchangeable-lens manufacturers offer lens accessories like extension tubes and secondary lenses like teleconverters; which mount in between the camera body and the primary lens, both using and providing a primary lens mount.
Canon PowerShot A and Canon PowerShot G cameras have a built-in or non-interchangeable primary (zoom) lens; and Canon has “conversion tube” accessories available for some Canon PowerShot camera models which provides either a 52mm or 58mm “accessory/filter” screw thread. Canon’s close-up, wide- (WC-DC), and tele-conversion (TC-DC) lenses have 2, 3, and 4-element lenses respectively, so they are multi-element lenses and not diopter “filters”.
Notes
^ A: The authoritative normative source for 4/3 standards information is Four-Thirds.Org and not 3rd-party reviews.
4/3′s published facts:
“Size of the 4/3-type Sensor: The standard diagonal length of the sensor is 21.63 millimetres (0.852 in). It is half that of 35-mm film format (36 millimetres (1.4 in) x 24 millimetres (0.94 in) = 43.27 millimetres (1.704 in)) and suitable format for professional use in digital age. The image circle of the interchangeable lens is specified based on this diagonal length. The focal length is about a half that of a 135 film camera lens assuming the same angle of view.”
“The foundation for the high picture quality of the Four Thirds system is the lens mount, which is about twice the diameter of the image circle.”
“Differences between Four Thirds System mount and Micro Four Thirds System mount: Mount diameter reduction; As a result of research aimed at facilitating the design of compact, lightweight lenses while maintaining the current strength, the outer diameter of the lens mount has been reduced by approx. 6 millimetres (0.24 in). … the Micro Four Thirds System … specifies the optimum flange back length required to reduce camera size and thickness, assuming the omission of the mirror box. The flange back length has been reduced to about 1/2 that of the Four Thirds System.”
So:
21.63mm * 2 = 43.26 millimetres (1.703 in) or ~44mm
43.26mm – 6mm = 37.26 millimetres (1.467 in) or ~38mm
(21.63mm)^2 = ( ( 17.3mm ^ 2 ) + ( 12.98mm ^ 2 ) ); See: Pythagorean theorem (5^2 = 4^2 + 3^2)
NOTE: Some published reviews of 4/3 instead cite the (female) “outside diameter” of the lens or mount as ~50mm (and micro-4/3 as ~44mm),, and not the appropriate major diameter (D) ~44mm which is the camera body’s female mount inside-diameter and the lens’s male mount outside-diameter (micro-4/3 ~38mm).
References
^ “Camera Story – 1987-1991 EOS” (HTML). Canon. http://www.canon.com/camera-museum/history/canon_story/1987_1991/1987_1991.html. Retrieved 2008-07-22.
^ Canon EF-S lens mount has a 54 mm diameter throat
^ Nikon F-mount has a 44 mm diameter throat
^ “About Four Thirds, Standard, Whitepaper (Summary of Standard)” (HTML). Four Thirds System. http://www.four-thirds.org/en/about/standard.html. Retrieved 2008-08-11.
^ “About Four Thirds, Standard, Benefits of Four Thirds” (HTML). Four Thirds System. http://www.four-thirds.org/en/about/benefit.html. Retrieved 2008-08-11.
^ “Micro Four Thirds, Standard, Whitepaper (Summary of Standard)” (HTML). Four Thirds System. http://www.four-thirds.org/en/microft/whitepaper.html. Retrieved 2008-08-11.
^ “Olympus and Panasonic announce Micro Four Thirds” (HTML). Digital Photography Review. http://www.dpreview.com/news/0808/08080501microfourthirds.asp.
General references
Markerink, Willem-Jan. “Camera mounts & registers”. http://www.a1.nl/phomepag/markerink/mounts.htm.
See also
ISO metric screw thread
External links
SLR Mount Identification Guide
Standard: GOST 10332-72 (in Russian) M421/45.5, M391/28.8
Standard: GOST 10332-63 (in Russian) M391/45.2 (aka Z39), M391/28.8, bayonet C (cameras: Zenit-5, Zenit-6, Zenit-7), bayonet Zenit-7
Camera mounts & registers from Robert Monahan Medium Format Photography Megasite http://medfmt.8k.com/
Camera mounts & registers from Willem-Jan Markerink http://www.markerink.org/WJM/HTML/mounts.htm
Camera Mounts Sorted by Register
Alphabetical List of Camera Mounts
Nikon Lens Nomenclature – a study in frustration
Adaptall-2.com
Mechanical & Optical Instruments
Categories: Lens mounts
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