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K Mount
The Pentax
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
Pentax
in 1975,[1] and has since been used by all Pentax
Pentax
35 mm and digital SLRs and also the MILC Pentax
Pentax
K-01
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Sony E-mount
The E-mount is a lens mount designed by Sony
Sony
for their NEX ("New E-mount eXperience"[citation needed]) and ILCE series of camcorders and mirrorless cameras.[1] The E-mount supplements Sony's A-mount allowing the company to develop more compact imaging devices while maintaining compatibility with 35mm sensors. E-mount achieves this by:Minimizing mechanical complexity, removing mechanical aperture and focus drive. Shortening the flange focal distance to 18 mm compared with earlier offerings from Sony
Sony
which used 44.5 mm. Reducing the radius of the flange.The short flange focal distance prohibits the use of an optical viewfinder as a mirror box mechanism cannot be included in this reduced distance
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Voigtländer Bessamatic
The Bessamatic was an 35mm
35mm
SLR camera made by Voigtländer
Voigtländer
in the 1960s, featuring a selenium meter. It uses a leaf shutter rather than the more common (in SLR cameras) focal plane shutter. This is a Synchro-Compur shutter mounted behind the lens, which is interchangeable. The shutter speeds go from "B" to 1/500. The most common lenses found on the Bessamatic are the Color-Lanthar, Color-Skopar, and Color-Skopar X all of which are 50mm focal length f/2.8 although the 50mm f/2 Septon is also fitted to these cameras, and is highly prized. The 35mm
35mm
Skoparex is unusual, but not hard to find. The 1 35mm
35mm
f/4 Super-Dynarex is relatively common, although the 200mm and 350mm Super-Dynarex lenses are relatively rare and expensive. The Bessamatic was the first SLR to be fitted with a zoom lens, the Zoomar
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Bayonet Mount
A bayonet mount (mainly as a method of mechanical attachment, as for fitting a lens to a camera) or bayonet connector (for electrical use) is a fastening mechanism consisting of a cylindrical male side with one or more radial pins, and a female receptor with matching L-shaped slot(s) and with spring(s) to keep the two parts locked together
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DC Motor
A DC motor
DC motor
is any of a class of rotary electrical machines that converts direct current electrical energy into mechanical energy. The most common types rely on the forces produced by magnetic fields. Nearly all types of DC motors have some internal mechanism, either electromechanical or electronic, to periodically change the direction of current flow in part of the motor. DC motors were the first type widely used, since they could be powered from existing direct-current lighting power distribution systems. A DC motor's speed can be controlled over a wide range, using either a variable supply voltage or by changing the strength of current in its field windings. Small DC motors are used in tools, toys, and appliances. The universal motor can operate on direct current but is a lightweight motor used for portable power tools and appliances
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Pentax K-70
The Pentax
Pentax
K-70 is a 24 megapixel compact APS-C
APS-C
digital SLR camera announced by Ricoh
Ricoh
on June 8, 2016. In contrast to the previously introduced APS-C
APS-C
flagship K-3 II, it includes a flash, flip-out display and built-in WiFi. In common with that camera, the K-70 is capable of Pixel Shift Resolution images, which provide higher colour resolution and require the camera to be stationary. It is the first Pentax
Pentax
camera to also include on-sensor PDAF elements that support hybrid autofocus, enabling continuous autofocus during video capture. Like its predecessors K-50 and K-S2, the Pentax
Pentax
K-70 is weather-sealed. Its price level and general features identify it as an upper entry level camera. In contrast to the flagship model, it lacks the second display and second memory card slot
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Pentax K-S2
The Pentax
Pentax
K-S2 is a weather-sealed digital SLR camera announced by Ricoh
Ricoh
on February 9, 2015. It is the first Pentax
Pentax
SLR to feature an articulated LCD, and it is the smallest DSLR to include this feature and also be weather-sealed.[1] In 2015, the K-S2 won the TIPA Award in the category Best Digital SLR Advanced.[2] Its release is also the debut of a new retractable kit lens that it will be bundled with, the SMC Pentax-DA L 18-50mm f/4-5.6 DC WR RE[3][4] - Pentax' second kit lens after the 18-135mm model to have a "silent" focus motor. The K-S2 also does not have an AA filter which increases sharpness but makes it more susceptible to moiré
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Pentax K-S1
The Pentax
Pentax
K-S1 is a midrange DSLR
DSLR
camera announced by Ricoh
Ricoh
on August 27, 2014. It has a 20 megapixel sensor — new to the Pentax
Pentax
line-up — and an anti-aliasing filter simulator as previously seen in the Pentax
Pentax
K-3. Also adopted from the K-3 is compatibility with the Pentax FluCard, which allows wireless tethered shooting and wireless download of images from the camera. In other respects, the K-S1 inherits a fair amount from the K-30/K-50 lineage, such as the compact, 100% coverage viewfinder, 1/6000s shutter and D-LI109 battery
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Pentax K-1
The Pentax
Pentax
K-1 is the first production Pentax
Pentax
full-frame digital SLR camera. As the flagship model of the Pentax
Pentax
K-mount system, it includes several new and improved features, including a five-axis SR II in-body image stabilization system, newly designed flexible tilt articulating screen mounted on four metal struts allowing for rotation about the optical axis in addition to upward and downward tilt, and improved autofocus and metering systems.Contents1 History 2 Reception 3 K-1 II 4 References 5 External linksHistory[edit] The camera was officially announced on February 5, 2016[1], launched on February 17, 2016[2] and first shipped on April 28, 2016.[3] A Silver Limited Edition was announced on 24th August 2017, with 2000 units available worldwide.[4] Ricoh has continued to update the camera after release through free downloadable firmware updates
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Pentax K-3 II
The Pentax
Pentax
K-3 II is a flagship APS-C
APS-C
DSLR
DSLR
camera announced by Ricoh on April 22, 2015. It is differentiated from its predecessor by inclusion of a GPS module with AstroTracer functionality (automatic tracking of the passage of stars across the sky, i.e. compensation of the rotation of the Earth; allows sharper, more detailed (less noisy) astrophotographs from longer exposures) and by "Pixel Shift Resolution", a capture mode giving higher spatial resolution. The integrated GPS module can also record positions of the camera while not in use, which allows subsequently reconstructing the path taken by the photographer.[1] The GPS module occupies the space formerly given to the onboard flash, which has been omitted. Pixel Shift Resolution records four separate images in quick succession and combines them into a final image
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Flange Focal Distance
For an interchangeable lens camera, the flange focal distance (FFD) (also known as the flange-to-film distance, flange focal depth, flange back distance (FBD), flange focal length (FFL), or register, depending on the usage and source) of a lens mount system is the distance from the mounting flange (the metal ring on the camera and the rear of the lens) to the film plane. This value is different for different camera systems. The range of this distance, which will render an image clearly in focus within all focal lengths, is usually measured in hundredths of millimeters and is known as the depth of focus (not to be confused with the similarly named depth of field). This distance influences whether a lens from one system can be mounted with an adaptor to a camera body of another system
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Voigtländer Ultramatic
The Voigtländer
Voigtländer
Ultramatic CS was the first 35mm
35mm
leaf shutter SLR camera with TTL metering. The design of the not too heavy camera was derived from the Voigtländer
Voigtländer
viewfinder cameras, with rounded sides and a shifter on the front side as shutter release. Its designer was Walter Swarofsky. A specialty of the camera was that shutter speed and aperture were controlled by rings around the bayonet. The lenses had only a distance control ring. The bayonet is a variant of the Deckel bayonet (DKL) offering mechanical control of both, aperture release and automatic aperture setting. The Septon 1:2/50mm was a well regarded lens, and like the Skopagon 2.0/40mm it was a quite fast lens for that type of SLR
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Aperture Priority
Aperture
Aperture
priority, often abbreviated A or Av (for aperture value) on a camera mode dial, is a setting on some cameras that allows the user to set a specific aperture value (f-number) while the camera selects a shutter speed to match it that will result in proper exposure based on the lighting conditions as measured by the camera's light meter. This is different from manual mode, where the user must decide both values, shutter priority where the user picks a shutter speed with the camera selecting an appropriate aperture, or program mode where the camera selects both.[1]Contents1 Uses1.1 Depth of field 1.2 Shutter speed2 See also 3 ReferencesUses[edit] Depth of field[edit] As an image's depth of field is inversely proportional to the size of the lens's aperture, aperture priority mode is often used to allow the photographer to control the focus of objects in the frame
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Kodak Retina Reflex
The Kodak
Kodak
Retina Reflex was a series of four single-lens reflex cameras made by Kodak, continuing the brand Kodak
Kodak
Retina.Contents1 Retina Reflex 2 Lenses for the Retina Reflex 3 Retina Reflex S 4 Retina Reflex III 5 Retina Reflex IV 6 Lenses for Retina Reflex S, III, IV, Instamatic
Instamatic
Reflex, and Retina IIIS 7 References 8 Sources 9 External linksRetina Reflex[edit] The Kodak
Kodak
Type 025 Retina Reflex is an SLR camera with so called convertible lenses (German: Wechselobjektiv), interchangeable lens components made by Kodak
Kodak
AG Stuttgart, Germany. It was made between Spring 1957 and October 1958. Like many SLR cameras of German heritage it works with a leaf shutter instead of a focal plane shutter
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Petri Camera
The Petri (ペトリ) Camera
Camera
Company was an optical company and manufacturer of cameras in Japan. It was founded in 1907. Prior to World War II, it was known as Kuribayashi Shashin Kōgyō or Kuribayashi Camera
Camera
Industry, inc. Japan
Japan
(the company name means "Acorn Grove"). In 1962 it changed its name to Petri Camera
Camera
Ltd.[1] In 1963 the company produced the cult model, the Petri 7S Circle-Eye System coupled rangefinder, leaf-shuttered model, that was used by some professionals in the 1960s, and that was so well built that this model is still used by enthusiasts today and has a following amongst street photographer artists. This was followed by the very successful Petri 7S 11 in 1966 . Both models had colour corrected lenses. The first Petri SLR was the "Penta" (1959)
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Tamron
Tamron
Tamron
Co., Ltd. (株式会社タムロン, Kabushiki-gaisha Tamuron) is a Japanese company manufacturing photographic lenses, optical components and commercial/industrial-use optics. Tamron
Tamron
Headquarters is located in Saitama City
Saitama City
in the Saitama Prefecture
Saitama Prefecture
of Japan. Sony Corporation
Sony Corporation
maintains an 11.38% share hold in Tamron, making it the second-largest shareholder below New Well Co., Ltd
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