Lens Mounts

Agfa Ambi Silette(1 lens)

Agfa's proprietary Ambi Silette bayonet for a compact four-lens 35 mm rangefinder system.

Canon EF(76 lenses)

Canon's fully electronic EOS SLR mount, built around in-lens autofocus motors and a large 54 mm throat.

Canon EF-S(8 lenses)

Canon's APS-C EOS DSLR mount, sharing EF electronics and register with a crop-only rear envelope.

Canon EF-M(8 lenses)

Canon's compact EOS M mirrorless mount, built for small APS-C bodies and native EF-M lenses.

Canon FD(11 lenses)

Canon's mature manual-focus SLR mount, associated with FD and New FD lenses for the F-1, AE-1, and A-series cameras.

Canon RF(39 lenses)

Canon's short-flange EOS R mirrorless mount, keeping EF's 54 mm throat while adding a denser electronic interface.

Contax RF(4 lenses)

The classic Zeiss Ikon Contax rangefinder mount, famous for compact Sonnar and Biogon-era rangefinder optics.

Zeiss Contaflex(1 lens)

Zeiss Ikon's Contaflex Pro-Tessar convertible lens system for 35 mm leaf-shutter SLR bodies.

Zeiss Contarex(3 lenses)

Zeiss Ikon's premium Contarex SLR mount, paired with mechanically elaborate bodies and high-end Zeiss lenses.

Exakta(5 lenses)

An early 35 mm SLR bayonet used by Ihagee Exakta bodies and supported by many German optical makers.

Fujifilm X(26 lenses)

Fujifilm's APS-C mirrorless mount, optimized around compact bodies and dedicated XF/XC image circles.

Fujifilm G(13 lenses)

Fujifilm's mirrorless medium-format mount for GFX bodies, built around a larger-than-full-frame image circle.

Hasselblad H(6 lenses)

Hasselblad's autofocus H-system mount, pairing medium-format coverage with electronically controlled leaf-shutter lenses.

Hasselblad XCD(3 lenses)

Hasselblad's compact medium-format mirrorless mount, used by X1D, X2D, and 907X cameras.

Konica AR(8 lenses)

Konica's long-running AR bayonet, tied to Autoreflex bodies and Hexanon manual-focus lenses.

Konica F(1 lens)

Konica's first SLR bayonet family, used by early F/FP/FM bodies and pre-AR Hexanon lenses.

Leica LTM / M39(12 lenses)

The screw-mount Leica rangefinder standard that established many early 35 mm lens conventions.

Leica M(17 lenses)

Leica's long-running rangefinder bayonet, known for compact manual-focus lenses and precise mechanical coupling.

Leica R(5 lenses)

Leica's SLR mount for R-series bodies, carrying rangefinder-era optical standards into reflex cameras.

L-Mount(28 lenses)

A short-flange mirrorless mount shared by Leica, Panasonic, and Sigma for full-frame and APS-C systems.

M42(15 lenses)

A widely adopted screw-mount SLR standard used by Pentax, Praktica, Fujica, Zeiss Jena, and many others.

Mamiya 7(1 lens)

Mamiya's portable 6x7 rangefinder mount, known for sharp leaf-shutter lenses and large negatives.

Mamiya 645(5 lenses)

Mamiya's 6x4.5 SLR mount family, spanning manual-focus film bodies, autofocus bodies, and digital-back workflows.

Mamiya NC(1 lens)

Mamiya's short-lived proprietary 35 mm SLR bayonet for NC bodies and Sekor CS lenses.

Mamiya RB67(1 lens)

Mamiya's fully mechanical 6x7 studio SLR mount, using bellows focusing, rotating backs, and leaf-shutter lenses.

Minolta SR(6 lenses)

Minolta's manual-focus SLR mount, home to Rokkor lenses and the SR, SRT, XD, and X-series bodies.

Nikon 1(5 lenses)

Nikon's compact CX-format mirrorless mount, built around very small fast-focusing interchangeable lenses.

Nikon F(147 lenses)

Nikon's long-lived SLR bayonet, spanning manual Nikkors, autofocus F-mount lenses, and modern DSLR optics.

Nikonos RS(3 lenses)

Nikon's dedicated underwater autofocus SLR mount for the Nikonos RS system, distinct from classic Nikonos and Nikon F.

Nikon S(3 lenses)

Nikon's classic rangefinder mount, closely associated with postwar Nikkor lenses and the Nikon S-series cameras.

Nikon Z(34 lenses)

Nikon's short-flange mirrorless mount, combining a very wide throat with modern electronic communication.

Four Thirds(3 lenses)

The original Olympus/Kodak Four Thirds DSLR mount, built around a dedicated 4/3-type digital sensor format.

Micro Four Thirds(20 lenses)

The open mirrorless standard from Olympus and Panasonic, built around compact interchangeable lenses for a Four Thirds sensor.

Olympus OM(23 lenses)

Olympus's compact manual-focus SLR mount, designed around small bodies and the Zuiko lens system.

Pentax 110(2 lenses)

A tiny interchangeable-lens mount for the Pentax Auto 110, one of the smallest true SLR systems made.

Pentax 645(6 lenses)

Pentax's 6x4.5 SLR mount, spanning manual-focus film bodies, autofocus 645N bodies, and 645 digital cameras.

Pentax 67(1 lens)

Pentax's oversized 35 mm-style 6x7 SLR mount, known for large negatives and Takumar/Pentax 67 lenses.

Pentax K(35 lenses)

Pentax's durable SLR bayonet, spanning manual K lenses, autofocus KAF generations, and modern DSLRs.

Pentax Q(2 lenses)

Pentax's ultra-compact mirrorless mount, built around compact-camera-sized sensors and tiny lenses.

Praktina(1 lens)

An early professional 35 mm SLR bayonet from KW/Praktina, supported by Carl Zeiss Jena and other lenses.

Samsung NX(3 lenses)

Samsung's NX mirrorless mount, a fully electronic APS-C system with native autofocus lenses.

Sigma SA(10 lenses)

Sigma's proprietary camera mount, used for SA-mount film bodies, DSLRs, and Foveon-sensor cameras.

Sony A(42 lenses)

The autofocus SLR mount inherited by Sony from Minolta, later used by Alpha DSLR and SLT bodies.

Sony E(58 lenses)

Sony's short-flange mirrorless mount, now one of the broadest APS-C and full-frame lens ecosystems.

Contax / Yashica(5 lenses)

The SLR mount shared by Yashica and Contax bodies, famous for Carl Zeiss T* manual-focus lenses.

Large-format Lens Board(15 lenses)

Board-mounted large-format lenses designed for bellows cameras, shutters, and front-standard movements.

Enlarging Lens(4 lenses)

Finite-conjugate projection lenses for enlargers, copy work, and darkroom printing systems.

Fixed-lens Camera(41 lenses)

Non-interchangeable camera lenses where the optical formula is designed as part of a complete camera body.