|
SUMMICRON R 90
The name Summicron is used by Leica to designate camera lenses that have a maximum aperture of f/2 after 1953 and to present day. History The name Summicron is derived from ''summus'', latin word for maximum and ''kronos'', the ancient Greek word for time. In the 1950s Leica bought Crown glass from Chance Brothers, an English company and used it to make the lenses. Leica designed a number of f/2 lenses before the Summicron, such as the Summar and Summitar. New coating technologies available after World War II allowed for the creation of the Summicron lens. The first Summicron was an evolved Summitar collapsible 50mm with Lanthanum glass, and was launched in 1953. Generations before approximately 1960 were produced in M39 mount ("screw mount"), then made available in M-mount (Latch-on A42), R-mount, and C-mount. Description The Summicron lenses have a maximum f-number of f/2. Market position Faster Leica lenses are offered with the trade names Noctilux (or Nocticron) a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Leica 50mm F-2 Summicron-R II (1978) Safari Green
Leica Camera AG () is a German company that manufactures cameras, optical lenses, photographic lenses, binoculars, rifle scopes and microscopes. The company was founded by Ernst Leitz in 1869 (Ernst Leitz Wetzlar), in Wetzlar, Germany. In 1986, the Leitz company changed its name to Leica, due to the fame of the Leica trade-name. The name Leica is derived from the first three letters of the founder's surname (Leitz) and the first two of the word camera: lei-ca (LEItz CAmera). At this time, Leica relocated its factory from Wetzlar to the nearby town of Solms. Leica Camera AG is 55% owned by Austrian investment firm ACM Projektentwicklung GmbH, and 45% owned by The Blackstone Group which licenses the Leica brand name from the Danaher Corporation-owned Leica Microsystems GmbH. History From the year 1907 to the 1950s, the buildings that formed Leica factory were built on Ernst Leitz Street in Wetzlar, and remained until 1986, when the factory was moved to the city of Solms. T ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
F-number
In optics, the f-number of an optical system such as a camera lens is the ratio of the system's focal length to the diameter of the entrance pupil ("clear aperture").Smith, Warren ''Modern Optical Engineering'', 4th Ed., 2007 McGraw-Hill Professional, p. 183. It is also known as the focal ratio, f-ratio, or f-stop, and is very important in photography. It is a dimensionless number that is a quantitative measure of lens speed; increasing the f-number is referred to as ''stopping down''. The f-number is commonly indicated using a lower-case hooked f with the format ''N'', where ''N'' is the f-number. The f-number is the reciprocal of the relative aperture (the aperture diameter divided by focal length). Notation The f-number is given by: N = \frac \ where f is the focal length, and D is the diameter of the entrance pupil (''effective aperture''). It is customary to write f-numbers preceded by "", which forms a mathematical expression of the entrance pupil diamet ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Leica L-Mount
The Leica L-Mount is a bayonet mount developed by Leica Camera AG for interchangeable-lens autofocus digital cameras. The L-Mount has an inner diameter of 51.6 mm and a flange depth of 20.0 mm. The L-mount exists in two versions, an APS-C version (TL) and a full-frame version (SL). The two versions are mechanically and electronically compatible. TL lenses mounted on full-frame cameras will cause the camera to use a crop mode from the center of the sensor, corresponding to the APS-C coverage of the lens. SL lenses mounted on TL cameras function normally, providing a 1.5x crop field of view, as is typical with APS-C cameras. In 2018 Leica formed the L-Mount Alliance, licensing Sigma, Panasonic in the same year, and DJI in 2022, to use an upgraded version of the mount for their own products, opening the way for a more extensive system of fully compatible cameras and lenses. T-Mount to L-Mount It was introduced in April 2014 with the Leica T (Typ 701) camera. At the time of in ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Leica S2
The Leica S2 is a digital medium format DSLR camera announced by Leica Camera on September 23, 2008. It features a Kodak-made custom CCD sensor measuring 30×45 mm and containing 37 million pixels. This sensor has a 26% longer diagonal and 56% larger area than a "full-frame″ 24×36 mm DSLR sensor and outputs an approximately 5000x7500 pixel image. The S2 is thus a medium format camera in a "35 mm SLR"-sized body. The new "Maestro" image processor used in the S2 was developed by Fujitsu based on the Milbeaut and the autofocus system (Leica's first to see production) was developed in house. The design of the body is by Manfred Meinzer, who made the design of the analogous Leica R8 The Leica R8 & R9 are manual focus 35 mm single-lens reflex cameras produced by the German firm Leica as the final models of their R series. Development of the R8 began in 1990: the camera was introduced at the 1996 photokina trade show, a ..., too. The S2 series body, lenses ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Leica R Bayonet
The Leica R bayonet mount is a camera lens mount system introduced by Leitz in 1964. The R mount is the standard method of connecting a lens to the Leica R series of 35 mm single-lens reflex cameras. The mount is descended from those used for the Leicaflex, Leicaflex SL and Leicaflex SL2 SLR cameras, but differs in the cams used to communicate lens aperture information to the camera. 3 cam lenses are compatible with all of the Leica SLR cameras, while R-only lenses have a slightly different mount shape that will not fit on the earlier cameras. The flange focal distance between mount and film is 47 mm. On 5 March 2009, Leica announced plans to cease production of its R-Series manual focus SLR and lenses. R Mount camera bodies Leicaflex Leica R R mount lenses ;1 cam The original Leicaflex 1 cam lenses have a single sloped cam that communicates aperture setting to the camera. They can be used on later SL / SL2 and R-series cameras in stop-down metering mode only. L ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Leica M Mount
The Leica M mount is a camera lens mount introduced in 1954 with the Leica M3, and a range of lenses. It has been used on all the Leica M-series cameras and certain accessories (e.g. Visoflex reflex viewing attachment) up to the current film Leica M-A and digital Leica M11 cameras. This lens mount has also been used by Epson, Ricoh, Minolta, Konica, Cosina Voigtländer, Rollei, Carl Zeiss AG and Rollei Fototechnic on some of their cameras. Overview The Leica M mount was introduced in 1954 at that year's Photokina show, with the Leica M3 as its first camera. The 'M' stands for ''Messsucher'' or rangefinder in German. This new camera abandoned the M39 lens mount in favour of a new bayonet mount. The bayonet mount allowed lenses to be changed more quickly and made the fitting more secure. Other innovations introduced by the M3 included a single window for the viewfinder (for composition) and the rangefinder (for focussing). With a double-stroke film advance lever (later models hav ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
M39 Lens Mount
The M39 lens mount is a screw thread mounting system for attaching lenses to 35 mm cameras, primarily rangefinder (RF) Leicas. It is also the most common mount for Photographic enlarger lenses. True Leica Thread-Mount (LTM) is 39 mm in diameter and has a thread of 26 turns-per-inch or threads-per-inch (tpi) (approximately 0.977 mm pitch) of Whitworth thread form. Whitworth threads were then the norm in microscope manufacture. The Royal Microscopical Society (RMS) thread, also known as ''society thread'', is a special 0.8" diameter x 36 tpi Whitworth thread used for microscope objective lenses and Leitz was a major manufacturer of microscopes, so the tooling at the plant was already set up to produce the Whitworth thread form. The Soviets in the 1930s produced their early FED cameras in M39×1 (39 mm by 1 mm DIN thread). Early Canon cameras also used a different M39 × 24 tpi thread mount, [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Elmarit
The name Elmarit is used by Leica to designate camera lenses that have a maximum aperture of f/2.8. History The Elmarit is a derivation of the Elmar. Confusingly not all f/2.8 lenses are Elmarits. The 50 mm f/2.8 collapsible, manufactured until 2007, was designated an Elmar rather than an Elmarit. Description The Elmarit are popular lenses for extreme focal lengths: 21 mm, 24 mm, 28 mm and 90 mm. The Elmarit has also come in 135mm super-telephoto. Market positions The Elmarit are behind the Summicron and the Summarit lenses. Only the Elmar and most Summaron lenses have a smaller f-number. List of Elmarit lenses ;For the Leica M mount The Leica M mount is a camera lens mount introduced in 1954 with the Leica M3, and a range of lenses. It has been used on all the Leica M-series cameras and certain accessories (e.g. Visoflex reflex viewing attachment) up to the current film L ...: * Elmarit-M 21 mm * Elmarit-M 21 mm ASPH. * Elmarit-M ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Summilux
The name Summilux is used by Leica and Panasonic Lumix to designate camera lenses that have a maximum aperture of less than f/2, typically f/1.4, but greater than f/1.0. The lens has been in production since 1959 and carries on to the present day. History The name Summilux is a combination of ''Summum'', which is the Latin word for highest, while ''Lux'' is for light. The first Summilux was the 50 mm of 1959, followed by a new 50 mm Summilux design in 1961, whose optics remained unchanged until replaced by the 50 mm Summilux-M ASPH of 2004. Description The Summilux lenses have a maximum f-number of f/1.4, f/1.5 or occasionally f/1.7. This one to 1.5 stops lower than Leica's Noctilux lenses, but the Summilux lenses are smaller as a result. Summilux lenses are designed for low-light photography. Market position The Summilux lenses are less expensive than the Noctilux lenses, which has a smaller f-number. However they are bigger, heavier and more expensive than the Summicron. L ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Nocticron
Nocticron („Night-time“ from latin ''nox, noctis'' „night“ and ancient Greek ''kronos'' „time“) is the brand name of Leica lenses with an extreme speed of f/1.2. Because of the large aperture size and its image stabilisation system it is possible to take images with relatively short exposure time especially in available light situations. Together with the high number of nine diaphragm blades the lens creates a strong and pleasant bokeh. Market position Nocticron lenses are slower than Noctilux lenses (f/0,95 or f/1,0) and faster than the Leica-lenses with the brand name Summilux (f/1,4), Summicron (f/2,0) and Elmarit (f/2,8). Description Nocticron prime lenses are offered as exchangeable lenses for the Micro Four Thirds system (MFT). At photokina 2012 the model ''Lumix Leica DG Nocticron 1:1,2/42.5 mm ASPH'' was announced, and it is available since 2014. Leica lenses with the model name attribute ''DG'' are made by Panasonic under licence. The lens has a fo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Noctilux
The name Noctilux is used by Leica to designate their camera lenses with the widest maximum aperture. Lenses with that name have been in production since 1966. So far all Noctilux lenses have been made for the Leica M mount. History The name Noctilux is a combination of ''Nocti'', which is derived from the word nocturnal, while ''Lux'' is Latin for light. Description The Noctilux lenses have the largest maximum apertures in the Leica range. With various models having f-numbers of f/0.95 or f/1.0 or f/1.2 or f/1.25 as its maximum aperture. It is also the heaviest of all of Leica's lenses. Market position The Noctilux is the most expensive lens in the Leica lens range. It is followed by the Summilux. List of Noctilux lenses ;For the Leica M mount The Leica M mount is a camera lens mount introduced in 1954 with the Leica M3, and a range of lenses. It has been used on all the Leica M-series cameras and certain accessories (e.g. Visoflex reflex viewing attachment) up to the curre ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lanthanum
Lanthanum is a chemical element with the symbol La and atomic number 57. It is a soft, ductile, silvery-white metal that tarnishes slowly when exposed to air. It is the eponym of the lanthanide series, a group of 15 similar elements between lanthanum and lutetium in the periodic table, of which lanthanum is the first and the prototype. Lanthanum is traditionally counted among the rare earth elements. Like most other rare earth elements, the usual oxidation state is +3. Lanthanum has no biological role in humans but is essential to some bacteria. It is not particularly toxic to humans but does show some antimicrobial activity. Lanthanum usually occurs together with cerium and the other rare earth elements. Lanthanum was first found by the Swedish chemist Carl Gustaf Mosander in 1839 as an impurity in cerium nitrate – hence the name ''lanthanum'', from the Ancient Greek (), meaning 'to lie hidden'. Although it is classified as a rare earth element, lanthanum is the 28th most ab ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
_Safari_green.jpg "Click for more on -> SUMMICRON R 90")
_01.jpg "Click for more on -> Leica L-Mount")
.jpg "Click for more on -> Leica R Bayonet")
.jpg "Click for more on -> Leica M Mount")
_Black.jpg "Click for more on -> Elmarit")
_Chrome.jpg "Click for more on -> Summilux")
