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Alpa was formerly a Swiss camera design company and manufacturer of 35 mm SLR cameras. The current owners bought the company name after the bankruptcy of the original company and the company exists today as a designer and manufacturer of high-end medium-format cameras (Website alpa.ch).
Alpa was an offshoot of the Pignons S.A. company, which made a particular part (pinions) for Swiss watches. They made high-end, all-metal 35mm cameras with a similar high-end but smaller-volume market to Germany's Leica, Contax, and Rolleiflex. In the late 1930s, Pignons invited engineer Jacques Bolsky to design a camera for them. This he did with the Alpa-Reflex in the 1940s. In true Swiss fashion, each camera was individually crafted. Thus, production was low, but quality and prices were high. Even these days, collectible Alpa cameras can fetch quite a high auction price. [1] It is estimated that as few as 40,000 cameras of all models of Alpa were made during the company's 40-year history. Allowing for certain gaps, the serial numbers would support that, as the last cameras made (in about 1990) carried serial numbers of only 64,xxx.
There is an ongoing question concerning which camera company was first with such innovations as the quick-return mirror, through-the-lens metering, cells in prism housings and the bayonet lens mount. Alpa was a contender for being first with each of these innovations and several others.
Unfortunately, Alpa did not have the resources to keep up with the technological advances that the mainstream camera companies were introducing in the 1970s and sales began to decline. It is not clear whether the lack of technological "innovation" was due to lack of money, or actually a choice made by the company against the automation brought about by other companies.
A more popularly priced "Alpa" camera made in Japan by Chinon was introduced. It used M42 screw mount lenses, but it did not sell very well, partly because the premium Alpa lenses could not be used on it. (The Si2000 used the M42 Screw mount, the Si3000 used the Pentax K mount.) Neither model was popular and they are not considered true Alpas by collectors. Some feel the Japanese Alpa was a mistake that hurt the company.
The Kern Macro Switar lens was a 50 mm lens at F1.8 or F1.9. It was an apochromat, and is still highly regarded as possibly the best standard lens ever offered. Other apochromats offered by Alpa included the 100 mm F2 and 150 mm F2.8 Kinoptik lenses.
A total of six different models of motor drive and magazine back were reputed to have been made. Two models each for the 9d, 10d, and 11 series cameras, one full-frame, one half-frame. Estimates of less than 250 were made. The example in the photo is full frame, 11 series.
Unlike Nikon magazine backs, the Alpa ones were designed to allow for an entire 100-foot roll of 35 mm film to be inserted at once, and to allow for the operator to open the takeup-side individually to cut off a portion of the film in a changing bag for processing without unloading the rest of the roll. The motor drive resembled some oil pumps in that the motor rocked a lever back and forth to shoot the normal trigger after a second gear moved the normal shutter cocking mechanism. In actual use, photos can be shot at approximately 1-second intervals.
Both wall transformers and NiCad battery packs were originally offered. The example unit has a wall transformer, but only photographs of the battery packs may survive.
The company retained the same lens mount on the Swiss made cameras from 1942 until they ended production. The back focus of the body was the thinnest of any 35 mm camera, and as a result, it was possible to make adapters to use lenses designed for almost any other 35 mm SLR on an Alpa. Adapters offered included Exakta, M42 (automatic diaphragm and manual), Nikon (auto and manual), Leicaflex, T-mount, and Contax. Other adapters included one to allow mounting Alpa lenses to C-mount movie cameras and another to mount the Alpa bodies to a microscope. Alpa did not make their own lenses, and sourced them through some of the best lens makers—Angenieux, Kern, Kinoptik, Schneider, and others. They were the only company to guarantee the optical quality of the lenses they sold. The clearness of the pentaprism in the Alpa models, and the use of "rings" of different surfaces in the eyepiece of the 11 series especially made them a great choice for using on a T-mount, attached to large telescopes. Coupled with the manual mirror raise switch, even the vibration of the mirror slap was removed.
The company can no longer compete with manufacturers from outside Europe. The fatal blow, however, is delivered by problems within the company. Pignons SA declares bankruptcy in 1990. The last ALPA model produced by Pignons SA is the ALPA 11.
By February 29, 1996, Capaul & Weber, Zurich, at long last acquired the worldwide rights to the brand-name ALPA. The new owners aim is to continue the tradition of quality established with the classic 35-mm ALPA reflex cameras and to enter into the field of medium-format cameras. On 18 April 1996 the internet domain alpa.ch was registered and soon the first website went online. At Photokina 1998 the first two ALPA 12 models are shown. Both were for medium-format: ALPA 12 WA (Wide Angle) and ALPA 12 SWA (Shift Wide Angle). Since then ALPA became one of the leading companies for technical cameras in medium format (first analog/film up to 6x9 and nowadays primarily with high-end digital backs).
The new "Alpa" is a brand of the Swiss company Capaul & Weber, and is used for minimalistic medium format cameras using specifically mounted lenses from Rodenstock, Schneider and Zeiss.
A single-lens reflex camera (SLR) is a camera that typically uses a mirror and prism system that permits the photographer to view through the lens and see exactly what will be captured. With twin lens reflex and rangefinder cameras, the viewed image could be significantly different from the final image. When the shutter button is pressed on most SLRs, the mirror flips out of the light path, allowing light to pass through to the light receptor and the image to be captured.
A rangefinder camera is a camera fitted with a rangefinder, typically a split-image rangefinder: a range-finding focusing mechanism allowing the photographer to measure the subject distance and take photographs that are in sharp focus. Most varieties of rangefinder show two images of the same subject, one of which moves when a calibrated wheel is turned; when the two images coincide and fuse into one, the distance can be read off the wheel. Older, non-coupled rangefinder cameras display the focusing distance and require the photographer to transfer the value to the lens focus ring; cameras without built-in rangefinders could have an external rangefinder fitted into the accessory shoe. Earlier cameras of this type had separate viewfinder and rangefinder windows; later the rangefinder was incorporated into the viewfinder. More modern designs have rangefinders coupled to the focusing mechanism so that the lens is focused correctly when the rangefinder images fuse; compare with the focusing screen in non-autofocus SLRs.
A twin-lens reflex camera (TLR) is a type of camera with two objective lenses of the same focal length. One of the lenses is the photographic objective or "taking lens", while the other is used for the viewfinder system, which is usually viewed from above at waist level.
Carl Zeiss AG, branded as ZEISS, is a German manufacturer of optical systems and optoelectronics, founded in Jena, Germany in 1846 by optician Carl Zeiss. Together with Ernst Abbe and Otto Schott he laid the foundation for today's multi-national company. The current company emerged from a reunification of Carl Zeiss companies in East and West Germany with a consolidation phase in the 1990s. ZEISS is active in four business segments with approximately equal revenue in almost 50 countries, has 30 production sites and around 25 development sites worldwide.
Mamiya Digital Imaging Co., Ltd. is a Japanese company that manufactures high-end cameras and other related photographic and optical equipment. With headquarters in Tokyo, it has two manufacturing plants and a workforce of over 200 people. The company was founded in May 1940 by camera designer Seiichi Mamiya and financial backer Tsunejiro Sugawara.
Praktica was a brand of camera manufactured by Pentacon in Dresden in eastern Germany, within the GDR between 1949 and the German reunification in 1990. The firm Pentacon was divided in mainly two parts and sold after German reunification. Schneider Kreuznach and Noble bought parts of it. Pentacon is a Dresden-based company in the optical and precision engineering industry, which was at times a major manufacturer of photo cameras. The name Pentacon is derived on the one hand from the Contax brand of the Dresden Zeiss Ikon Kamerawerke and Pentagon, because a pentaprism for SLR cameras developed for the first time in Dresden has this shape in cross section. Today's PENTACON GmbH Foto- und Feinwerktechnik is still based in Dresden. It is part of the Schneider Group, Bad Kreuznach. Pentacon is the modern-day successor to Dresden camera firms such as Zeiss Ikon; for many years Dresden was the world's largest producer of cameras. Previous brands of the predecessor firms included Praktica, Exa, Pentacon, Zeiss Ikon, Contax, Ica, Ernemann, Exakta, Praktiflex, and many more.
A lens mount is an interface – mechanical and often also electrical – between a photographic camera body and a lens. It is a feature of camera systems where the body allows interchangeable lenses, most usually the rangefinder camera, single lens reflex type, single lens mirrorless type or any movie camera of 16 mm or higher gauge. Lens mounts are also used to connect optical components in instrumentation that may not involve a camera, such as the modular components used in optical laboratory prototyping which join via C-mount or T-mount elements.
Contax began as a German camera model in the Zeiss Ikon line in 1932, and later became a brand name. The early cameras were among the finest in the world, typically featuring high quality Zeiss interchangeable lenses. The final products under the Contax name were a line of 35 mm, medium format, and digital cameras engineered and manufactured by Japanese multinational Kyocera, and featuring modern Zeiss optics. In 2005, Kyocera announced that it would no longer produce Contax cameras. The rights to the brand are currently part of Carl Zeiss AG, but no Contax cameras are currently in production, and the brand is considered dormant.
The M42 lens mount is a screw thread mounting standard for attaching lenses to 35 mm cameras, primarily single-lens reflex models. It is more accurately known as the M42 × 1 mm standard, which means that it is a metric screw thread of 42 mm diameter and 1 mm thread pitch.
The Pentax K-mount, sometimes referred to as the "PK-mount", is a bayonet lens mount standard for mounting interchangeable photographic lenses to 35 mm single-lens reflex (SLR) cameras. It was created by Pentax in 1975, and has since been used by all Pentax 35 mm and digital SLRs and also the MILC Pentax K-01. A number of other manufacturers have also produced many K-mount lenses and K-mount cameras.
The history of the single-lens reflex camera (SLR) begins with the use of a reflex mirror in a camera obscura described in 1676, but it took a long time for the design to succeed for photographic cameras. The first patent was granted in 1861, and the first cameras were produced in 1884, but while elegantly simple in concept, they were very complex in practice. One by one these complexities were overcome as optical and mechanical technology advanced, and in the 1960s the SLR camera became the preferred design for many high-end camera formats.
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This article details lensesfor single-lens reflex and digital single-lens reflex cameras. The emphasis is on modern lenses for 35 mm film SLRs and for "full-frame" DSLRs with sensor sizes less than or equal to 35 mm.
Half-frame cameras, also called single-frame or split-frame cameras, are analog cameras compatible with 35mm film types. These cameras capture congruent shots that take up half of each individual frame in the roll of film. They can be still frame or motion picture cameras and are the standard format of 35mm movie cameras. This is commonly expressed, more technically, as 18×24 mm using 18×24 mm of a regular 135 film. It is closer to the normal frame size of a 35 mm motion film. This leaves half frame cameras to derive their film plate size from the aspect ratio, and frame size that was first designated by Thomas Edison at the dawn of the motion picture industry. Traditionally, the additional film width on motion picture film is used for audio in later film standards, although the original patent for sound on film is derived from the 1880s.
The Panasonic Lumix DMC-G1 was the first digital mirrorless interchangeable-lens camera (MILC) adhering to the Micro Four Thirds system design standard. The G1 camera is similar to the larger Four Thirds system format DSLR cameras, but replaces the complex optical path needed for the optical viewfinder with an electronic viewfinder EVF displaying a live view image directly from the sensor. Eliminating the mirror box and optical viewfinder allows for smaller and lighter camera bodies, while the less complex optical path also allows for smaller, lighter lens designs.
This article discusses the cameras – mainly 35 mm SLRs – manufactured by Pentax Ricoh Imaging Corp. and its predecessors, Pentax Corporation and Asahi Optical Co., Ltd.. Pentax must not be confused with Pentax 6x7 or Pentax 67 which are 120 medium format 6x7cm film cameras.
Pentax lenses were first badged as Takumar. The Takumar branded lenses were well respected for their line of Super Takumar, which designated the high performance coating applied to the lens as well as the optical formulas used to make them. The majority of the industry at the time was still satisfied with the variations of the "plumb" coating process and later some of the two and three layer processes as well. Asahi Pentax soon introduced the Takumar Super-Multi-Coated line of lenses which was a 7 layer process as the industry had just caught up with similar forms of 5 layer multi-coated optics. Eventually Asahi Optical and Pentax slowly shifted much of their lens production under the Pentax name and transitioned some of the successful designs that were first introduced under the Takumar name to use Asahi/Pentax badging as well as beginning to use the "smc" abbreviation. Eventually the Asahi partnership disappeared and the Pentax name became solely used. Pentax lenses saw many feature changes to answer the market, such as: incorporating "Auto-Aperture" with the M42, the light weight and compactness with the 'M' series, Aperture Priority overrides with the 'A' series, and Auto-Focus with the 'F' series. Modern Pentax lenses for digital SLR cameras have seen the elimination of the aperture ring completely as found on Pentax DA and D-FA series lenses. They use the Pentax KAF mount. All of these lenses have an autofocus feature, either operated from the camera body or from an internal SDM motor. Pentax compatible lenses are also made by third-party companies.
The Jupiter series of lenses are Russian camera lenses made by various manufacturers in the former Soviet Union. They were made to fit many camera types of the time, from pre-WWII rangefinders to almost modern SLRs. They are copied from Zeiss pre-WWII designs with incremental improvements, such as coatings, introduced during production. The majority of them are based on Zeiss Sonnar optical scheme, but that's not a rule.
The 35mm SLR camera Alpa-Reflex has its origins back in the 1930s when a Swiss precision mechanical manufacturer decided to diversify their product range, having mainly relied on manufacturing parts for the watch industry. They sought outside assistance and by 1939 the plans were ready and building cameras commenced at a very slow rate. The camera was eventually named the Alpa because it was light, pocketable, and might easily be brought along travelling in the Alps. The Alpa-Reflex is only predated by the Kine Exakta, the Sport, and the Praktiflex 35mm SLRs. The manufacturer was Pignons S.A, Ballaigues, and the designer was Jacques Bolsky born December 31, 1895, in Kiev as Yakob Bogopolsky. He emigrated to the United States of America once the design was completed. He was also the inventor of the renowned Bolsey and Bolex cine cameras.
The E-mount is a lens mount designed by Sony for their NEX and ILCE series of camcorders and mirrorless cameras. The E-mount supplements Sony's α mount, allowing the company to develop more compact imaging devices while maintaining compatibility with 35mm sensors. E-mount achieves this by:
