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Canon Speedlite

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The Canon F-1 is a 35 mm single-lens reflex camera produced by Canon of Japan from March 1971 until the end of 1981, at which point it had been superseded by the New F-1 launched earlier that year. The Canon FD lens mount was introduced along with the F-1, but the previous Canon FL -mount lenses and older R- series lenses were also compatible with the camera with some limitations. The Canon F-1 was marketed as a competitor to the Nikon F and Nikon F2 single lens reflex cameras by Nikon .

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63-576: Speedlite is a brand of Canon electronic flashes designed for use with the manual-focus FD system , the autofocus EOS system , and various other cameras such as the Canonet 35mm rangefinders and the PowerShot G series advanced digital compact cameras. This camera-related article is a stub . You can help Misplaced Pages by expanding it . Canon Inc. Canon Inc. ( Japanese : キヤノン株式会社 ; Hepburn : Kyanon kabushiki gaisha )

126-510: A Canon AS100 PC for which you could get a color or monochrome display computer, shortly after the release of the IBM PC . It was based on the Intel 8088 processor and used CP/M or MS-DOS . Options included an 8 MB hard drive. As of 2020, Canon is organized into four principal business segments: Canon F-1 The F-1 was Canon's first successful professional-grade SLR system, supporting

189-468: A bracket around the tripod socket of the unit. The Motor Drive Unit also contained a built-in intervalometer for delays up to 1 frame per minute. The maximum speed was 3 frames per second. In 1972 Canon made a special modification of the F-1 called the "High Speed Motor Drive Camera". The moving mirror was replaced by a fixed pellicle (semi transparent) mirror and the motor drive was permanently attached;

252-629: A copy of the Leica design, Japan's first 35 mm focal-plane-shutter camera, was developed in prototype form. In 1940 Canon developed Japan's first indirect X-ray camera. Canon introduced a field zoom lens for television broadcasting in 1958, and in 1959 introduced the Reflex Zoom 8 and the Canonflex . In 1961, Canon introduced the Rangefinder camera, Canon 7 , and 50mm 1:0.95 lens in

315-621: A corded Battery Case which either used the Battery Magazine 15V battery pack (which took 10 AA batteries ) or the NiCd 500 FZ and plugged into the bottom of the cylindrical extension, making it unwieldy for field or sports action use. The same Battery Case could be used with the Battery Magazine 12V (8 AAs) for the Servo EE or Booster T Finders. An alternative battery pack ("Battery Case D") was released by 1973 which directly connected to

378-651: A hard coat. In 1996, Canon introduced a pocket-sized digital camera with the Advanced Photo System , named ELPH in America and IXUS in Europe. Canon entered the digital video camcorder market in 1997. In 2004, Canon introduced the XEED SX50 LCD projector. Canon introduced its first high-definition camcorder in 2005. In November 2009, Canon made a €730 million (US$ 1.1 billion) all-cash offer for

441-549: A high power handle mounted ("potato masher") flash designated SpeedLight 500A. This was also to use the CATS equipment It appears in some Canon publications, and there are user instructions for it, however most people have never actually seen a SpeedLight 500A. For low ambient light photography without flash, Canon provided the Finder Illuminator F which slid over the same flash contacts at the flash couplers. It contained

504-409: A huge variety of accessories and interchangeable parts so it could be adapted for different uses and preferences. Their earlier professional Canonflex of 1959 had failed due to a premature introduction—before professional accessories were ready. In 1972 Canon launched a Highspeed model with a fixed pellicle mirror that allowed the user to see the subject at all times. Equipped with a motor drive,

567-532: A maximum rate of 3.5 frame/sec and was much better suited to action / sports photography, especially when paired with the Speed Finder or Servo EE finder. A special cord ("Connecting Cord MF") allowed the Servo EE finder to draw its power from the Motor Drive MF – thus making a much more compact setup than the original Motor Drive unit. The Motor Drive MF did not have a built in intervalometer , but

630-559: A metering range from EV –3.5 to +10 with a film speed range of ASA 25–12800. When outside the metering range of the Booster T, the in-body meter is used instead. Just like the metering range was shifted towards the dark side, this finder also shifts the shutter speeds the camera provided towards the long end. Instead of the normal range of shutter speeds (1 – 1 ⁄ 2000  s), the Booster T Finder provided stepped shutter speeds of 60 – 1 ⁄ 60  s. It completely covers

693-426: A pop-up hood to shield the focusing screen from stray light, as well as a magnifier to help with critical focusing. The waist-level finder did not allow the metering information to be seen. The Speed Finder had a rotation feature. This had an arrangement of prisms such that it could be swivelled between eye-level and waist-level positions. It also allowed the entire finder image to be viewed from 60 millimeters away and

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756-490: A range of wireless presenters, from advanced green laser presenters with back-lit screen display to basic red laser presentation clickers. Canon is developing a prototype virtual reality headset (Canon VR). The headset offers a wider viewing angle (120°) than other VR devices but requires handles rather than a head strap. The headset is not yet available on the market. As of 2020, Canon produces and sells high-end AR ( augmented reality ) headsets for enterprise users. Canon

819-515: A single interface; therefore the company will operate as a separate entity. On 10 February 2015, Canon announced that it had intentions to buy Swedish Security Camera maker Axis Communications for US$ 2.83 billion. On 23 February 2015, Axis Communications reacted to this news and confirmed that it had received a purchase proposal from Canon. The purchase was effectively completed in April 2015. On 24 April 2015, Canon Europe announced it had acquired

882-599: A small battery powered light to light up the metering window. Later, Canon introduced the Flash Coupler F, which fastened over the Eye Level Finder, making the camera look like more like one with a fixed viewfinder and hot shoe. This flash coupler, obviously could not be used with any other viewfinder, and did not have the electronics that the L model had, but it was more compact and the newer A-series flashes which had auto flash capabilities had now superseded

945-633: A special bayonet mount. In 1964 Canon introduced the 'Canola 130', the first Japanese made 10-key calculator , a substantial improvement on the design of the British Bell Punch company, which introduced the first fully electronic calculator two years earlier with the Sumlock Anita Mark 8 unit. In 1965 Canon introduced the Canon Pellix , a single lens reflex (SLR) camera with a semi-transparent stationary mirror which enabled

1008-475: A special power cord. The originally available Motor Drive was named the "Motor Drive Unit", which attached to the bottom of the camera with a long, cylindrical extension which housed the winding motor and gearbox. It was commonly referred to as the Motor Drive MD – because all of the accessories had MD in their suffix, but that was not the official designation. The Motor Drive Unit originally required

1071-619: A wide range of flatbed scanners , film scanners and document scanners for home and business use, including the Canon CanoScan 8800F . Some of its scanners employ LED inDirect Exposure (LiDE) technology, such that USB port is sufficient to power the scanner, and no additional power is required. Current printers use the proprietary BJNP protocol (USB over IP port 8611). Canon produced a range of calculators in various applications, including handheld calculators, desktop calculators, printing calculators and scientific calculators. One model

1134-547: Is a Japanese multinational corporation headquartered in Ōta , Tokyo , specializing in optical, imaging, and industrial products, such as lenses , cameras , medical equipment, scanners , printers , and semiconductor manufacturing equipment. Canon has a primary listing on the Tokyo Stock Exchange and is a constituent of the TOPIX Core 30 and Nikkei 225 indexes. It used to have a secondary listing on

1197-401: Is from EV +2.5 to +18. A servo mechanism in the finder drove the aperture lever on the lens via the "EE Coupler" arm, stopping the lens down to the correct value. This finder used the same coupling pin on the shutter speed dial as the Booster T Finder did, to sync the finder's shutter speed setting with the camera. It required a cord connected battery magazine (8 AAs) or the Motor Drive MF and

1260-495: Is one of the world's top producers of semiconductor and display manufacturing equipment. Its subsidiary Canon Tokki dominates the market of material deposition equipment, and instruments for manufacturing OLED displays. Canon is also the leading manufacturer of display photolithography equipment and one of the top 3 in the semiconductor lithography machine market. Once a leader of semiconductor lithography along with Nikon , it has been dwarfed by ASML , and as of 2017 its share in

1323-626: Is the FLP 38 mm F2.8, which was designed for the Canon Pellix . This lens' rear element extends further into the camera body than other FL-mount lenses, and would obstruct the moving mirror of the Canon F-1. Canon introduced a number of innovations in the FD lens line, including the first use of an aspherical lens element in a 35mm camera system with the release of the FD 55mm f /1.2 AL in (launched alongside

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1386-807: The New York Stock Exchange . The company was originally named Seikikōgaku kenkyūsho ( Japanese : 精機光学研究所 , lit.   'Precision Optical Laboratory'). In 1934, it produced the Kwanon , a prototype for Japan's first-ever 35 mm camera with a focal-plane-based shutter. In 1947, the company name was changed to Canon Camera Co., Inc. , shortened to Canon Inc. in 1969. The name Canon comes from Buddhist bodhisattva Kannon ( Japanese : 観音 , lit.   ' Guanyin '), previously transliterated as Kuanyin, Kwannon, or Kwanon in English. The origins of Canon date back to

1449-592: The 270EX II, 320EX, 430EX II, 430EX III-RT, 470EX-AI, 580EX, 580EX II, 600EX-RT, 600EXII-RT, EL-1, and EL-5 Speedlites. Canon also produces macro flash units, including the Macro Twin Lite and the Macro Ring Lite. Canon designs and manufactures CMOS image sensors in-house for its imaging products and it has three dedicated fabs in Japan . In 2016, Canon, the fifth-largest image sensor manufacturer in

1512-702: The Canon LBP-SX engine. Later models used the Canon LBP-LX, LBP-EX, LBP-PX engines and many other Canon print engines. Following Canon's acquisition of the Dutch digital printing manufacturer Océ in 2010, Canon continued to develop and manufacture printing systems, initially under the Océ brand name. On 1.1.2020 the company Océ was officially renamed Canon Production Printing . Canon has been sued over intentionally designing all-in-one printers that cannot scan when

1575-550: The Dutch printer maker Océ . Canon had acquired majority ownership of Océ by March 2010, and completed the acquisition of 100% of shares in Océ by the end of 2011. In 2010, Canon acquired Tereck Office Solutions, Inc. On 16 March 2010, Canon announced that it was seeking to acquire a new .canon generic top-level domain , acquiring it in February 2015 and using it for the first time on its global website in May 2016. In

1638-464: The F-1 in March 1971). Canon's super telephoto FD lenses were also the first to use white-colored housings, which were designed to keep the thermally sensitive fluorite lens elements from expanding or cracking. Canon continues to use white housings for its L-series lenses today, though the modern versions are made with ultra-low dispersion (UD) glass rather than fluorite. The Canon F-1 has one of

1701-412: The F-1's flash coupler originally attached atop the rewind crank. Initially, there were two flash couplers, D and L. The D model was a simple x-synch coupler that allowed any non-dedicated manual or auto flash to be used. The Flash Coupler L contained two batteries (now hard to find, one being originally a 1.35v mercuric oxide and the other being the uncommon PX-1 size), one which powered a light to light up

1764-465: The F-1, with the default being the Type A. Initially, four were available (Types A – D). The focusing screen condenser incorporates a beam-splitting mirror which directs some of the incident light to the in-body CdS photoresistor light meter. This caused a perceptible darkening of the metering area, which shows up as a rectangular area in the center of the frame. With a removable viewfinder,

1827-675: The Interval Timer L (and later the Interval Timer TM-1 (Quartz) could be plugged into the remote control socket as could remote switches and a wireless control unit, the Wireless Controller LC-1. These all allowed either remote and / or unattended use of the camera. Later, Canon introduced the Power Winder F, a 2 frame/ sec power winder with a grip for ease of use. It used 4 AA batteries in

1890-489: The London-based family photo sharing startup Lifecake. In November 2015, in an effort to avoid the selling of gray-market camera gear, Canon USA filed litigation against a number of camera gear retailers. Retailers include Get It Digital, All New Shop and F&E Trading. In March 2016, Canon acquired Toshiba Medical Systems Corporation for US$ 5.9 billion. On 28 March 2017, Canon Europe announced it had acquired

1953-974: The London-based printing startup Kite. On 2 April 2019, Canon introduces two new UHDgc 2/3-inch Portable Zoom Lenses designed For 4K UHD Broadcast Cameras. In July 2020, Canon recorded its first ever quarterly loss due to the COVID-19 pandemic. In September 2020, Fujitsu announced that it would provide Canon with a Fujitsu Supercomputer PRIMEHPC FX1000 unit, to assist with its no-prototype development manufacturing initiative. In December 2020, Canon concluded its photographic-equipment print-ad series named "Wildlife as Canon Sees It". This series of ads began in 1981 in National Geographic magazine. In October 2023, Canon introduced its new nanoimprint lithography manufacturing systems, which it claims are simpler and more affordable than ASML 's extreme ultraviolet lithography systems. The system prints

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2016-509: The MF's grip had to be removed and coupled via a dedicated cord. The F-1s eyepiece was threaded and could take a metal (later soft rubber covered) ring, an eyecup or several different diopter adjustment lenses. The Magnifier R and Angle Finders A2 and B could also be attached to allow critical focusing and / or waist-level use (if one did not want to fit either the Speed Finder or Waist Level Finder). Canon offered nine different focusing screens for

2079-415: The Motor Drive MF, which was divided into two parts: a drive unit which attached to the bottom of the body, and a battery grip. The Motor Drive MF had its batteries (10 AAs) in a vertical grip that normally mounted to the front of the camera, where it could be gripped by the photographer's right hand, but could be detached and connected via the coiled "Connecting Cord for Grip MF" for remote operation. It had

2142-602: The RC-701. The RC series was followed by the PowerShot and Digital IXUS series of digital cameras. Canon also developed the EOS series of digital single-lens reflex cameras (DSLR) which includes high-end professional models. Due to consumers switching from compact cameras to smartphones , Canon's Q1 2013 operating profit fell 34 percent year-on-year. Canon produces a range of high-output flash units for its DSLR cameras, including

2205-528: The camera was able to shoot up to nine frames per second—the highest speed of any motor driven camera at the time. The Canon F-1 uses the Canon FD lens mount , which was introduced alongside the camera. Between 1970 and 1979, a total of 68 different FD mount lens models were produced, ranging from 7.5mm to 800mm in focal length . Most earlier FL and R series lenses are compatible with the F-1, though they must be used in stop-down metering mode . One exception

2268-473: The camera was revised slightly. This revised version is sometimes called the F-1n (not to be confused with the 1981 New F-1). All told 13 improvements were made. These changes were: The number of focusing screens was also expanded from four to nine. In 1980 Canon introduced "Laser Matte" focusing screens identified by an "L" in a circle on the screen's label. These Laser Matte screens were noticeably brighter than

2331-478: The camera's dial stopped at the B(ulb) setting, and the finder kept the shutter release on the body pressed for the duration of the exposure. The mechanics of this connection also resulted in the oddity that there was no 2 s setting, but 4, 3 and 1 seconds. The Servo EE Finder added shutter priority automatic exposure to the F-1. Like the Booster T, the Servo EE contains two CdS metering cells; its metering range

2394-490: The camera's wind lever was removed, making it impossible to use without the motor drive. It used a corded battery case which took 20 AA batteries The slowest shutter speed was limited to 1 ⁄ 60  sec. Maximum speed was 9 frames per second, the fastest available at the time. Its use at the 1972 Olympics in Japan produced fantastic sequential shots that were previously impossible to achieve. In 1973, Canon introduced

2457-1073: The desired circuit pattern onto the silicon wafer bypassing photolithography and can produce circuits equivalent to 5  nm scale. Canon's products include cameras (including compact digital camera , video camera , film SLR and digital SLR ), camcorders , lenses , broadcasting equipment and solutions (such as free viewpoint solution), professional displays, projectors , manufacturing equipment (including photolithography equipment such as steppers , scanners ), printers , photocopiers , image scanners , digital microfilm scanners , fax machines , binoculars , microscopes , medical equipment (including diagnostic systems such as ultrasound , X-ray , CT and MRI scanners and ophthalmic equipment ), CCTV solutions, image sensors , calculators , high precision positioning and measurement devices (such as rotary encoders ), custom optical components, handy terminals , mixed reality systems, software, and space satellites . Canon has been manufacturing and distributing digital cameras since 1984, starting with

2520-540: The earlier screens, and they were continued with the New F-1. A special commemorative model of the F-1 was offered for the 1976 Montreal Olympics . It was identical to the regular F-1 but for the Olympic emblem on the front upper left of the body. Canon also manufactured and sold commemorative 55 mm and (much harder to find) 58 mm lens caps with the 1976 Montreal Olympics for their normal lenses in production at

2583-483: The early 1970s, the F-1 required no modification or special custom fitting to attach the motor drives, one simply removed the bottom plate and screwed the motor drive in place. The F-1's back was removable. Two data backs or the Film Chamber 250, a bulk film back that could hold 250 exposures, could be attached. The Data Back set includes a Data Controller, which allows up to twelve digits (0–9) to be imprinted on

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2646-505: The film, six digits each on the left and right sides, using a seven-segment display for each digit. The Data Controller resembles a desktop calculator with a vacuum fluorescent display and is powered by four AA batteries. The Data Back F is a self-contained unit with three analog dials to select numbers, certain letters, or Roman numerals. The Film Chamber 250 could be used alone or with the Motor Drive Unit or Motor Drive MF;

2709-551: The first-ever camera with eye-controlled AF, and the PowerShot 600, its first digital camera. In 1995, Canon introduced the first commercially available SLR lens with internal image stabilization, Canon EF 75-300mm lens f/4-5.6 IS USM. The Canon EOS-RS was the world's fastest AF SLR camera with a continuous shooting speed of 10 frame/s at the time. Based on the EOS-1N, the EOS-1N RS had a fixed, semi-transparent pellicle mirror with

2772-536: The founding of Precision Optical Instruments Laboratory in Japan in 1933 by Takeshi Mitarai , Goro Yoshida  [ jp ] , Saburo Uchida  [ jp ] and Takeo Maeda  [ jp ] . It became the company Precision Optical Instruments, Co., Ltd. in 1937. During its early years, the company did not have any facilities to produce its own optical glass, and its first cameras incorporated Nikkor lenses from Nippon Kogaku K.K. (the later Nikon Corporation ). Between 1933 and 1936, 'The Kwanon',

2835-578: The goddess of the dawn, along with the Canon EOS 650 autofocus SLR camera. Also in 1987, the Canon Foundation was established. In 1988, Canon introduced 'Kyosei philosophy'. The EOS 1 Flagship Professional SLR line was launched in 1989. In the same year the EOS RT, the world's first AF SLR with a fixed, semi-transparent pellicle mirror, was unveiled. In 1992, Canon launched the Canon EOS 5 ,

2898-469: The largest set of accessories of any 35mm SLR ever produced. The viewfinder is removable (interchangeable with four other viewfinders); The focusing screen can be changed out with 4 (later 9) types; the mirror can be locked up to allow deep seated lenses or for high magnification work, the back is interchangeable with a data and bulk film back (250 exposures), The bottom plate is removable and there are 4 Motor Drives and / or Power Winders that can be used (one

2961-491: The metering window visible in the viewfinder, and the other to work with the original Canon Auto tuning system (CATS). The CATS used a special auto flash, the SpeedLite 133D and Flash auto Rings A, B, A2 and B2 and Canon 50 mm and 35 mm Lenses which signalled through the cords the distance of the subject and the charge level of the flash to allow match needle flash photography. Canon announced and produced manuals for

3024-448: The old SpeedLite 133D. The CATS flash equipment was for the later electronic Canon F1 New (1981) and it allowed aperture settings from the camera to be communicated to the flash unit. It was also possible for the flash unit to select an appropriate camera aperture based on its own photo cell exposure reading, provided that the motor drive was also present. The motor drive is necessary for the camera to function in shutter priority. TTL Flash

3087-688: The overall market was less than 5%. Still, Canon maintains a great presence in the i-line stepper market. Canon introduced two MSX home computer models in 1983, the V-10 and the V-20 . Both offered just the minimum range of the MSX standards without any additional features. The V-20 was able to receive shooting data from the T90 Canon camera with the Data Memory Back T90 expansion. Canon also sold

3150-478: The printer is low on ink. Canon settled the lawsuit in 2023 without admitting guilt. Canon's largest division in terms of revenue is its multifunction copier division. Canon distributes its consumer and home office imageCLASS line though retail outlets and professional-grade imageRUNNER series through subsidiary Canon Solutions America and independent distributors. The professional-grade series ranges from small table tops to large digital presses. Canon manufactures

3213-537: The rear sides of the finder, and slid the finder toward the back of the camera (or depress one button on the bottom of the Speed Finder). The camera shipped with a standard pentaprism finder, called an "eye-level finder" by Canon. Other finders available included a waist-level finder, Speed Finder, Booster T finder, and Servo EE finder. The waist-level finder was patterned after the design of waist-level finders common to medium format SLR and TLR cameras. It had

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3276-545: The same battery magazine that the Canon A-series Power Winder A used. The Power winder F could use most of the remote switches that also fit the Motor Drive MF. The only two accessories that it could not use were the Interval Timer L and the Remote Switch 60-MF. While not as fast, the Power Winder F was smaller and lighter than the Motor Drive MF. Unlike many other professional-level cameras of

3339-420: The shutter speed selector and shutter release on the body. The finder also had a shutter release button, which went through the finder down to the normal release. The shutter speed dial on the finder locked on to the camera's normal shutter dial and drove it through a coupling pin for the standard range of 1 – 1 ⁄ 60  s. When the Booster's shutter speed dial was turned further, towards longer times,

3402-544: The taking of pictures through the mirror. In 1971, Canon introduced the Canon F-1 , a high-end SLR camera, and the FD lens range . In 1976, Canon launched the Canon AE-1 , the world's first camera with an embedded micro-computer. Canon introduced their Inkjet printer using bubble-jet technology in 1985, one year after Hewlett-Packard. In 1987, Canon introduced their Canon Electro-Optical System (EOS), named after

3465-678: The third quarter of 2012, Canon's global market share in the sale of printers, copiers and multifunction devices was 20.90%. In early 2013, Canon USA moved into a new US$ 500 million headquarters in Melville, New York . In February 2014, Canon announced it would acquire Texas -based Molecular Imprints Inc., a developer of nanoprint lithography systems, for an amount speculated to be around US$ 98 million. On 13 June 2014, Canon announced it had acquired Danish IP Surveillance VMS software company Milestone Systems. Milestone provides open-platform software to allow video management from various vendors in

3528-459: The time (the 300 mm F2.8L) and the world's fastest 400 mm lens (the New FD 400 mm F2.8L) both of which incorporate special fluorite and ultra low dispersion glass elements for superb optical quality at the widest lens opening. Like most professional 35 mm cameras of the 1970s, the F-1 had interchangeable viewfinders. To remove the viewfinder, one depressed the two small buttons at

3591-470: The time. For the 1980 Winter Olympics in Lake Placid , a Special version of the F-1 with the engraved Lake Placid Olympic logo was offered. Special Lake Placid 52 mm lens caps were also made. In 1978 a military model called "ODF-1" (olive drab) with an all-over olive green finishing was presented. (Note, this was not for military use but rather a special addition made for the civilian market. It

3654-400: The world, decided to start selling the sensors to other companies. However, it does not plan to sell smartphone image sensors to focus on the niche markets such as industrial and space observation. Although Canon had withdrawn from the so-called ' pixel count race' in the 2000s, it has been on the cutting edge as to the image sensor resolution in recent years. A demo of a 250MP image sensor

3717-403: Was a special order 9 frames per second high speed motor drive); three different flash couplers allowed a wide variety of flashes; the eyepiece can take threaded diopter adjustment lenses, magnifiers or angle finders; and the lens collection numbers over 50 FD (and a few special purpose) lenses from 7.5 mm fisheye to 1200 mm super telephoto , and includes the world's fastest 300 mm at

3780-771: Was introduced on the Nikon F3 (1981) which was a direct competitor of the F1 New. For many this was considered as a considerable advantage although the ergonomics of the Nikon F3 with its liquid crystal display lacked the clarity of the Canon F1. A comprehensive set of close-up, macro and microphoto accessories was available for the F-1, including three bellows units, reversing rings and couplers, macro and micro photo hoods and couplers, copy stands, manual and automatic extension tubes and 3 different focal length macro lenses. In 1976,

3843-491: Was revealed in 2015 and reported to be launched in 2020. In 2018, Canon launched a 120MP image sensor as a part of its latest BtoB offerings. For many years, Canon was the principal maker of the print engines found in industry-standard laser printers. The first models of Apple LaserWriter and the equivalent products made by HP used the Canon LBP-CX engine. The next models (LaserWriter II series, LaserJet II series) used

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3906-426: Was suggested for use when wearing goggles or anything else that could prevent the user from placing the eyepiece right up to their eye. It allowed full metering. The Booster T Finder and Servo EE Finder were both essentially variations on the standard eye-level finder. The Booster T Finder contained two sensitive CdS metering cells, powered by a single 6 V #544 (4SR44) silver-oxide button cell battery. It has

3969-537: Was the 1964 Canola 130. It had 13 digits, a result of marketing research. The reason for the odd number of figures was based on selling it to the Japanese central bank. Given the low value of the Japanese Yen, 13 digits was a requirement of the banks. The calculator was built by germanium transistors and the display was a light pipe which gave an odd format. Canon produces a range of projectors. Canon offers

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