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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 6x7

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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