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Canon EF-M 32mm Lens
The EF-M 32mm f/1.4 STM is an interchangeable prime lens introduced by Canon in September 2018. The lens is based on the EF-M mount that is used in Canon's lineup of mirrorless cameras. It currently is the latest lens published that uses the EF-M lens mount. With a maximum value of f/1.4, it has the largest aperture In optics, an aperture is a hole or an opening through which light travels. More specifically, the aperture and focal length of an optical system determine the cone angle of a bundle of rays that come to a focus in the image plane. An opt ... of all Canon EF-M mount lenses. Gallery File:Canon EF-M 32mm F1.4 STM lens-top uncapped PNr°0802.jpg, Front view File:Canon EF-M 32mm F1.4 STM lens-bottom uncapped PNr°0805.jpg, Bottom view File:Canon EF-M 32mm F1.4 STM lens-side PNr°0807.jpg, Side view File:Canon EF-M 32mm F1.4 STM lens-aperture blades PNr°0803.jpg, The lens' seven aperture blades seen from the front Weblinks Official webpage of the EF-M 3 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Canon Inc
is a Japanese multinational corporation headquartered in Ōta, Tokyo, Japan, specializing in optical, imaging, and industrial products, such as lenses, cameras, medical equipment, Image scanner, scanners, Printer (computing), printers, and semiconductor manufacturing equipment.Corporate Profile " ''Canon''. Retrieved on 13 January 2009. Canon has a primary listing on the Tokyo Stock Exchange and is a constituent of the TOPIX Core30 and Nikkei 225 index. It has a secondary listing on the New York Stock Exchange. Name The company was originally named ''Seikikōgaku kenkyūsho'' (Jpn. , ''Precision Optical Industry Co. Ltd.''). In 1934 it produced the ''Kwanon'', a prototype for Japan's first-ever 35 mm camera with a focal-plane-based shutter. ...[...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Canon EF-M Lens Mount
The Canon EF-M lens mount, introduced in 2012, is a derivative of the Canon EF lens mount designed for use with the Canon EOS M mirrorless interchangeable-lens camera. The EF-M lens mount is one of Canon's two new systems for mirrorless cameras, the other being the RF mount. The M system has an 18 mm flange focal distance (compared to 20 mm for RF and 44 mm for EF and EF-S) and a 47 mm throat diameter (compared to 54 mm for EF, EF-S, and RF). As it is designed for use with an APS-C Advanced Photo System type-C (APS-C) is an image sensor format approximately equivalent in size to the Advanced Photo System film negative in its C ("Classic") format, of 25.1×16.7 mm, an aspect ratio of 3:2 and Ø 31.15 mm field d ...-sized image sensor, it features the same crop factor (of roughly 1.6) as the existing EF-S lens mount. The M system is somewhat limited as Canon has issued relatively few native lenses, listed below. There is a lack of nativ ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Prime Lens
In film and photography, a prime lens is a fixed focal length photographic lens (as opposed to a zoom lens), typically with a maximum aperture from f2.8 to f1.2. The term can also mean the primary lens in a combination lens system. Confusion between these two meanings can occur without clarifying context. Alternate terms, such as ''primary focal length'', ''fixed focal length'', or ''FFL'' are sometimes used to avoid ambiguity. As alternative to zoom lens The term ''prime'' has come to mean the opposite of ''zoom''—a fixed-focal-length, or unifocal lens. While a prime lens of a given focal length is less versatile than a zoom lens, it is often of superior optical quality, wider maximum aperture, lighter weight, and smaller size. These advantages stem from having fewer moving parts, optical elements optimized for one particular focal length, and a less complicated lens formula that creates fewer optical aberration issues. Larger maximum aperture (smaller f-number) facilita ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mirrorless Interchangeable-lens Camera
A mirrorless camera is a photo camera featuring a single, removable lens and a digital display. The camera does not have a reflex mirror or optical viewfinder like a digital single-lens reflex (DSLR) camera, but may have an electronic viewfinder. Many mirrorless cameras retain a mechanical shutter. Like a DSLR, a mirrorless camera accepts any of a series of interchangeable lenses compatible with its lens mount. Terminology Mirrorless cameras are sometimes referred to as mirrorless interchangeable-lens cameras (MILC), or digital single-lens mirrorless (DSLM) cameras. This latter name highlights their connection to DSLRs. Other terms include electronic viewfinder interchangeable lens (EVIL) cameras and compact system cameras (CSCs). Overview Mirrorless cameras are mechanically simpler than DSLR cameras, and are smaller, lighter, and quieter due to the elimination of the moving mirror. While nearly all mirrorless cameras have a mechanical shutter, many also have an el ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Aperture
In optics, an aperture is a hole or an opening through which light travels. More specifically, the aperture and focal length of an optical system determine the cone angle of a bundle of rays that come to a focus in the image plane. An optical system typically has many openings or structures that limit the ray bundles (ray bundles are also known as ''pencils'' of light). These structures may be the edge of a lens or mirror, or a ring or other fixture that holds an optical element in place, or may be a special element such as a diaphragm placed in the optical path to limit the light admitted by the system. In general, these structures are called stops, and the aperture stop is the stop that primarily determines the ray cone angle and brightness at the image point. In some contexts, especially in photography and astronomy, ''aperture'' refers to the diameter of the aperture stop rather than the physical stop or the opening itself. For example, in a telescope, the apertur ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Canon EF-M-mount Lenses
Canon or Canons may refer to: Arts and entertainment * Canon (fiction), the conceptual material accepted as official in a fictional universe by its fan base * Literary canon, an accepted body of works considered as high culture ** Western canon, the body of high culture literature, music, philosophy, and works of art that is highly valued in the West * Canon of proportions An artistic canon of body proportions (or aesthetic canon of proportion), in the sphere of visual arts, is a formally codified set of criteria deemed mandatory for a particular artistic style of figurative art. The word ''canon'' () was first us ..., a formally codified set of criteria deemed mandatory for a particular artistic style of figurative art * Canon (music), a type of composition * Canon (hymnography), a type of hymn used in Eastern Orthodox Christianity. * Canon (album), ''Canon'' (album), a 2007 album by Ani DiFranco * Canon (film), ''Canon'' (film), a 1964 Canadian animated short * Canon ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
