Canon's fully electronic EOS SLR mount, built around in-lens autofocus motors and a large 54 mm throat.
Canon's APS-C EOS DSLR mount, sharing EF electronics and register with a crop-only rear envelope.
Canon's compact EOS M mirrorless mount, built for small APS-C bodies and native EF-M 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's short-flange EOS R mirrorless mount, keeping EF's 54 mm throat while adding a denser electronic interface.
The classic Zeiss Ikon Contax rangefinder mount, famous for compact Sonnar and Biogon-era rangefinder optics.
Zeiss Ikon's premium Contarex SLR mount, paired with mechanically elaborate bodies and high-end Zeiss lenses.
An early 35 mm SLR bayonet used by Ihagee Exakta bodies and supported by many German optical makers.
Fujifilm's APS-C mirrorless mount, optimized around compact bodies and dedicated XF/XC image circles.
Fujifilm's mirrorless medium-format mount for GFX bodies, built around a larger-than-full-frame image circle.
Hasselblad's autofocus H-system mount, pairing medium-format coverage with electronically controlled leaf-shutter lenses.
Hasselblad's compact medium-format mirrorless mount, used by X1D, X2D, and 907X cameras.
Konica's long-running AR bayonet, tied to Autoreflex bodies and Hexanon manual-focus lenses.
The screw-mount Leica rangefinder standard that established many early 35 mm lens conventions.
Leica's long-running rangefinder bayonet, known for compact manual-focus lenses and precise mechanical coupling.
Leica's SLR mount for R-series bodies, carrying rangefinder-era optical standards into reflex cameras.
A short-flange mirrorless mount shared by Leica, Panasonic, and Sigma for full-frame and APS-C systems.
A widely adopted screw-mount SLR standard used by Pentax, Praktica, Fujica, Zeiss Jena, and many others.
Minolta's manual-focus SLR mount, home to Rokkor lenses and the SR, SRT, XD, and X-series bodies.
Nikon's compact CX-format mirrorless mount, built around very small fast-focusing interchangeable lenses.
Nikon's long-lived SLR bayonet, spanning manual Nikkors, autofocus F-mount lenses, and modern DSLR optics.
Nikon's classic rangefinder mount, closely associated with postwar Nikkor lenses and the Nikon S-series cameras.
Nikon's short-flange mirrorless mount, combining a very wide throat with modern electronic communication.
The original Olympus/Kodak Four Thirds DSLR mount, built around a dedicated 4/3-type digital sensor format.
The open mirrorless standard from Olympus and Panasonic, built around compact interchangeable lenses for a Four Thirds sensor.
Olympus's compact manual-focus SLR mount, designed around small bodies and the Zuiko lens system.
A tiny interchangeable-lens mount for the Pentax Auto 110, one of the smallest true SLR systems made.
Pentax's 6x4.5 SLR mount, spanning manual-focus film bodies, autofocus 645N bodies, and 645 digital cameras.
Pentax's oversized 35 mm-style 6x7 SLR mount, known for large negatives and Takumar/Pentax 67 lenses.
Pentax's durable SLR bayonet, spanning manual K lenses, autofocus KAF generations, and modern DSLRs.
An early professional 35 mm SLR bayonet from KW/Praktina, supported by Carl Zeiss Jena and other lenses.
Sigma's proprietary camera mount, used for SA-mount film bodies, DSLRs, and Foveon-sensor cameras.
The autofocus SLR mount inherited by Sony from Minolta, later used by Alpha DSLR and SLT bodies.
Sony's short-flange mirrorless mount, now one of the broadest APS-C and full-frame lens ecosystems.
The SLR mount shared by Yashica and Contax bodies, famous for Carl Zeiss T* manual-focus lenses.
Board-mounted large-format lenses designed for bellows cameras, shutters, and front-standard movements.
Finite-conjugate projection lenses for enlargers, copy work, and darkroom printing systems.
Non-interchangeable camera lenses where the optical formula is designed as part of a complete camera body.