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.
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.
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.
Zenit (Russian: Зени́т) is a Soviet camera brand manufactured by KMZ in the town of Krasnogorsk near Moscow since 1952 and by BelOMO in Belarus since the 1970s. The Zenit trademark is associated with 35 mm SLR cameras. Among related brands are Zorki (Watchful) for 35 mm rangefinder cameras, Moskva (Moscow) and Iskra (Spark) for medium-format folding cameras and Horizon for panoramic cameras. In the 1960s and 1970s, they were exported by Mashpriborintorg to 74 countries.
The Nikon FG is an interchangeable lens, 35 mm film, single-lens reflex (SLR) camera. It was manufactured by Nippon Kogaku K. K. in Japan from 1982 to 1986.
The Rolleiflex SL35 is a range of SLR cameras manufactured and sold by the German camera maker Rollei from 1970 to 1982. This range of cameras uses 35mm film. The camera bodies were initially made in Germany. After Zeiss Ikon discontinued camera production, Rollei acquired the Voigtländer brand and camera designs in 1972, and began producing a second generation of SLR cameras in Singapore starting from 1976. Some of those second-generation cameras were rebranded and marketed as Voigtländer VSL.
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.
The Pentax Spotmatic refers to a family of 35mm single-lens reflex cameras manufactured by the Asahi Optical Co. Ltd., later known as Pentax Corporation, between 1964 and 1976.
The Bessa family of cameras was manufactured in Japan by Cosina as a revival of the Voigtländer brand name between 1999 and 2015.
The Contaflex series is a family of 35mm Single-lens reflex cameras (SLR) equipped with a leaf shutter, produced by Zeiss Ikon in the 1950s and 1960s. The name was first used by Zeiss Ikon in 1935 for a 35mm Twin-lens reflex camera, the Contaflex TLR; for the earlier TLR, the -flex suffix referred to the integral reflex mirror for the viewfinder. The first SLR models, the Contaflex I and II have fixed lenses, while the later models have interchangeable lenses; eventually the Contaflexes became a camera system with a wide variety of accessories.
A selenium meter is a light-measuring instrument based on the photoelectric properties of selenium. The most common use of such light meters is measuring the exposure value for photography. The electric part of such a meter is an electromagnetic measuring instrument which is connected to the anode and cathode of a selenium photo cell that produces more or less electric power when exposed to more or less light. The optical part of such a meter is a window in front of the photo cell's light-sensitive side. The window's surface is usually structured like a honeycomb made of convex lenses. This type of window helps to bundle the light coming from the direction in which the photo cell is pointed. The mechanical part of a selenium meter is an analog calculator which accepts exposure value and film speed as input parameters for showing the possible aperture and shutter-speed combinations for correct exposure.
The Bessamatic and Ultramatic were lines of 35mm SLR cameras made by Voigtländer in the 1960s, featuring a selenium meter. It uses a leaf shutter, similar to competing SLR cameras manufactured by Kodak and Zeiss Ikon in Germany, rather than the focal plane shutter almost universally adopted by Japanese SLRs such as the contemporary Nikon F and Pentax Spotmatic. The Ultramatic was released in 1963, which used the same lens mount and added a shutter-priority autoexposure mode.
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.
The Topcon RE Super, or Beseler Topcon Super D in USA, was launched by Tokyo Kogaku KK in 1963 and manufactured until 1971, at which point it was upgraded to the Super D and again to Super DM the following year. General sale continued for several years. These later models have a shutter release lock lever on the shutter release collar. It is a professional oriented 35mm SLR camera that had a comprehensive range of accessories available. It has a removable pentaprism viewfinder and focusing screen. It features the Exakta bayonet lens mount for interchangeable lenses. A special accessory shoe is situated at the base of the rewind knob with a standard PC sync. contact next to it. The release button is placed at the right-hand camera front, but there is no mirror-up facility; this was included on the upgraded versions. The standard lens is the RE. Auto-Topcor 1:1.4 f=5.8cm or the slightly slower 1:1.8 version. A battery-operated winder could be attached to the camera base.
Zuiko is a brand of optical lenses made by Olympus Corporation that was used up to and into the Four Thirds system era. The name Zuiko (瑞光) means 'Light of the Gods', using a character from the Mizuho Optic Research Laboratory (瑞穂光学研究所), where the lens was developed, and a character from Takachiho Corporation (高千穂製作所), which would eventually become the Olympus Corporation.
The Zeiss Hologon is an ultra wide-angle f=15mm f/8 triplet lens, providing a 110° angle of view for 35mm format cameras. The Hologon was originally fitted to a dedicated camera, the Zeiss Ikon Contarex Hologon in the late 1960s; as sales of that camera were poor and the Zeiss Ikon company itself was going bankrupt, an additional 225 lenses were made in Leica M mount and released for sale in 1972 as the only Zeiss-branded lenses for Leica rangefinders until the ZM line was released in 2005. The Hologon name was revived in 1994 for a recomputed f=16mm f/8 lens fitted to the Contax G series of rangefinder cameras.
Contarex lenses are a series of photographic camera lenses used by the Contarex camera, which use the Contarex bayonet lens mount. The first set of lenses were presented with the Contarex I at Photokina in 1958 and initially scheduled for delivery in the spring of 1959, but they were not made generally available in the United States until March 1960.
Icarex is a line of 35mm single lens reflex cameras (SLRs) made by Zeiss Ikon, derived from an earlier Bessaflex project developed by Voigtländer. The Icarex line, which included the Icarex 35, Icarex 35CS, Icarex 35S, and SL 706, was aimed at a mid-range market above the Contaflex SLR, which was intended for advanced amateurs, but below the Contarex line for professionals.
Prominent refers to two distinct lines of rangefinder cameras made by Voigtländer.
The Vito and Vitomatic, Vitoret, and Vito Automatic were several related lines of 35 mm compact viewfinder and rangefinder cameras made by Voigtländer from the 1940s through the early 1970s, equipped with leaf shutters, similar in concept to and marketed against the competing Kodak Retina cameras manufactured by Kodak. All of these cameras were fixed-lens models; the models in the Vito line identified with Roman numerals were equipped with folding mechanisms and collapsible lenses for portability, while the others were rigid, non-folding cameras.
