Z CAM is a camera brand created by a team of innovative and creative people dedicated to develop high performance, state of the art imaging products and solutions. In 2015, the team launched Z CAM E1, the world's smallest 4K, MFT interchangeable lens mount camera. Upon the successful market dominance of the Z CAM E2, a series of Flagship cinema cameras were also created: Z CAM E2-S6 (Super 35mm 6K), Z CAM E2-F6 (Full Frame 6K), and the Z CAM E2-F8 (Full Frame 8K) during Q4 2019. A number of top commercials, documentaries, TV series and feature films around the world have been shot on Z CAM E2. There is also an increasing trend of innovative applications leveraging on the unique capabilities and form factor of Z CAM E2, including but not limited to volumetric and underwater capture. Z CAM is committed to develop more innovative products while expanding the market coverage worldwide. Seeing is believing!
The EF mount is a bayonet mount for connecting lenses and cameras that Canon developed and initially used on its single-lens reflex (SLR) cameras. The EF lens mount is the standard lens mount for the Canon EOS family of film and digital cameras.
EF stands for "Electro-Focus": automatic focusing in EF lenses is handled by a special electric motor in the lens. Mechanically, it is a bayonet mount where all communication between the camera and the lens is done through electrical contacts; there are no mechanical levers or plungers. The connector was first introduced in 1987.
The EF mount of a Canon EOS 50 Electronics of an EF-S lens
EF mount lenses are compatible with newer Canon bodies to some extent, but the reverse is not true:
Lenses for the former Canon FD lens mount are not usable for general photography on cameras with EF mount, unless adapters with optical elements are used, as they are designed for a flange focal distance of only 42.0 mm. The Canon FD-EOS adapter is rare and can only be used with certain FD telephoto lenses.
Third party cameras
The mount consists of four serrated flanges, each with a notch in the center. Each of these four notches can be used to align the mount with a locating pin located approximately 45 degrees clockwise from the top of the camera's lens mount. This means that the lens can be aligned in one of four different configurations depending on factors such as the position of the focuser, camera position, and preference for working with meters or feet (if a lens has different line indicators on each side). The mount is locked in place with a friction lock ring that, in conjunction with the four prongs of the flange, provides a very tight fit for the lens. This has become a critical factor in recent years as larger lenses with zoom capabilities, longer focal lengths, or larger lens elements have a greater need for mount stability due to the greater stress these devices place on the mount.
Flange focal length: 52.00 mm (51.97 mm for Arri SR high-speed models) (73.5 mm for Arriflex 765, this mount is called "Maxi PL mount") (60.00 mm for XPL mount on ALEXA65) (44 mm for LPL mount on ALEXA LF) Diameter: 54.00 mm (64.00 mm for Maxi PL mount) (72.00 mm for XPL mount on the ALEXA65) (62 mm for the LPL mount on the ALEXA LF)
The Micro Four Thirds system (MFT or M4/3) (Maikuro Fō Sāzu Shisutemu) is a standard introduced by Olympus and Panasonic in 2008 for the development of mirrorless digital cameras with interchangeable lenses, camcorders and lenses. Camera bodies are available from Blackmagic, DJI, JVC, Kodak, Olympus, Panasonic, Sharp, and Xiaomi. MFT lenses are made by Cosina Voigtländer, DJI, Kowa, Kodak, Mitakon, Olympus, Panasonic, Samyang, Sharp, Sigma, SLR Magic, Tamron, Tokina, TTArtisan, Veydra, Xiaomi, Laowa, Yongnuo, Zonlai, Lensbaby, Kowa, Venus Optics and 7artisans, among others.
MFT shares the original image sensor size and specification with the Four Thirds system, which was developed for DSLRs. Unlike Four Thirds, the MFT system does not have room for a mirror box and pentaprism, which allows for smaller bodies and lenses due to the shorter 19.25mm flange focal length. The short flange focal distance, in conjunction with an adapter of the correct depth, allows almost any lens ever made for a camera with a flange focal distance greater than 19.25mm to be used on MFT cameras. Lenses for still cameras from Canon, Leica, Minolta, Nikon, Pentax and Zeiss have already been successfully adapted for use on MFT cameras - as have lenses for cinema cameras, e.g. with PL or C mount.
The neck diameter is about 38 mm, 6 mm less than the Four Thirds system. Electrically, MFT uses a connector with 11 contacts between the lens and camera, in addition to the nine contacts of the Four Thirds system. Olympus claims that many of its Four Thirds lenses are fully backward compatible with MFT bodies by using a custom-made adapter with mechanical and electrical interfaces.
Adapter for other lens mounts
The flat but wide MFT lens mount also allows the use of existing lenses, including Leica M, Leica R and Olympus OM system lenses, via Panasonic and Olympus adapters. Adapters available on the aftermarket include Leica Screw Mount, Contax G, C-Mount, Arri PL-Mount, Praktica, Canon, Nikon and Pentax. In fact, almost any interchangeable lens for still, film or video cameras with a flange focal length of more or less than 20mm can be used on MFT cameras via an adapter. Since the flange focal length of Micro Four Thirds cameras is shorter than that of DSLR cameras, most lenses are smaller and less expensive.
Compactness of the lens and adaptability of the connector
Since most Micro Four Thirds lenses have neither a mechanical focus ring nor an aperture ring, adapting these lenses to other camera mounts is either impossible or limited. A number of companies make adapters to use lenses with almost any conventional lens mount (such lenses do not support automatic functions, of course).
The M bayonet is a lens mount that the Leica company (or its legal predecessor Leitz) introduced for rangefinder cameras in 1954. It has a transfer function of the distance set on the lens to the camera's rangefinder in order to be able to use the rangefinder's measuring function. The flange focal distance is 27.8 mm. In the latest version introduced for the Leica M8, there are additional markings on the flange that can provide optically coded information about the lens type to the camera to allow the camera to perform digital image correction. Older lenses can be retrofitted with the markings by Leica.
Viewfinder cameras with Leica M bayonet; Leica M7, Leica MP, Konica Hexar RF, Minolta CLE
Besides Leica, other companies offer or offered cameras with this bayonet, such as Konica, Minolta (CL, CLE), Cosina (Voigtländer), Rollei, and Carl Zeiss.
These manufacturers have also each offered lenses with the M bayonet, making the selection of corresponding lenses one of the largest on the market. Other manufacturers included Avenon, Handevision (Iberit lenses), and MS Optical/MS Optics.
In camera systems with an even smaller flange focal length and the same or smaller image circle, such as the Micro Four Thirds system or the E-mount system from Sony, lenses with M bayonet can be used with a suitable lens adapter.
The Z-CAM Mounts
All the above mentioned