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Pentax K100D
The Pentax K100D and similar Pentax PENTAX K110D, K110D are 6-megapixel digital single-lens reflex cameras, launched in the U.S. on May 22, 2006. The K100D has a maximum resolution of 3008 x 2008, and can also down-sample to 2400 x 1600 and 1536 x 1024. The slowest metered shutter speed is 30 seconds and the fastest shutter is 1/4000 seconds. The K100D features a 6-megapixel Charge-coupled device, CCD sensor, coupled with an analog-to-digital converter (ADC) and a sensor-based image stabilization, shake reduction system within the camera body. The K110D has exactly the same features as the K100D, except it lacks built-in shake reduction. The K100D is sometimes confused with the similarly named, but more advanced, Pentax K10D. The Pentax K200D, successor to the K100D and K100D Super, was officially announced on January 23, 2008. K100D Super On June 27, 2007, Pentax announced the K100D Super. It retains the features and the 6.1-megapixel image sensor of the K100D, while adding ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pentax
is a brand name used primarily by the Japanese multinational imaging and electronics company Ricoh for DSLR cameras, lenses, sport optics (including binoculars and rifle scopes), and CCTV optics. The Pentax brand is also used by Hoya Corporation for medical products & services, TI Asahi for surveying instruments, and Seiko Optical Products for certain optical lenses. Corporate history Early history The company was founded as Asahi Kogaku Goshi Kaisha in November 1919 by Kumao Kajiwara, at a shop in the Toshima suburb of Tokyo, and began producing spectacle lenses (which it still manufactures). In 1938 it changed its name to , and by this time it was also manufacturing camera/cine lenses. In the lead-up to World War II, Asahi Optical devoted much of its time to fulfilling military contracts for optical instruments. At the end of the war, Asahi Optical was disbanded by the occupying powers, being allowed to re-form in 1948. The company resumed its pre-war activities, manufactur ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Megapixel
In digital imaging, a pixel (abbreviated px), pel, or picture element is the smallest addressable element in a raster image, or the smallest point in an all points addressable display device. In most digital display devices, pixels are the smallest element that can be manipulated through software. Each pixel is a sample of an original image; more samples typically provide more accurate representations of the original. The intensity of each pixel is variable. In color imaging systems, a color is typically represented by three or four component intensities such as red, green, and blue, or cyan, magenta, yellow, and black. In some contexts (such as descriptions of camera sensors), ''pixel'' refers to a single scalar element of a multi-component representation (called a ''photosite'' in the camera sensor context, although ''sensel'' is sometimes used), while in yet other contexts (like MRI) it may refer to a set of component intensities for a spatial position. Etymology T ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pentax DSLR Cameras
is a brand name used primarily by the Japanese multinational imaging and electronics company Ricoh for DSLR cameras, lenses, sport optics (including binoculars and rifle scopes), and CCTV optics. The Pentax brand is also used by Hoya Corporation for medical products & services, TI Asahi for surveying instruments, and Seiko Optical Products for certain optical lenses. Corporate history Early history The company was founded as Asahi Kogaku Goshi Kaisha in November 1919 by Kumao Kajiwara, at a shop in the Toshima suburb of Tokyo, and began producing spectacle lenses (which it still manufactures). In 1938 it changed its name to , and by this time it was also manufacturing camera/cine lenses. In the lead-up to World War II, Asahi Optical devoted much of its time to fulfilling military contracts for optical instruments. At the end of the war, Asahi Optical was disbanded by the occupying powers, being allowed to re-form in 1948. The company resumed its pre-war activities, manufacturi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pentax K-m
The Pentax K-m (called K2000 in U.S.) is a 10.2 megapixel digital single-lens reflex camera, announced on September 22, 2008 at the 2008 photokina trade show along with the DA-L series of lightweight, inexpensive lenses. It was discontinued in November 2009, being replaced by the more recent Pentax K-x. The K-m is considered a compact and entry-level model. It is significantly lighter than other Pentax DSLRs, lacks the weather sealing of the contemporaneous K200D and K20D models, and is intended to be sold with lightweight DA-L-series lenses. It does offer some improvements over the K200D, however, notably a maximum sensitivity increased from ISO 1600 to ISO 3200 and a slightly faster burst mode. The MSRP of the Pentax K2000 is $699 with DA-L 18-55mm 3.5-5.6 kit lens and AF200FG external flash unit. See also *Pentax K1000 *Pentax K-x The Pentax K-x is a 12.4 megapixel digital single-lens reflex camera, announced on September 16, 2009. The Pentax K-x use ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Exif
Exchangeable image file format (officially Exif, according to JEIDA/JEITA/CIPA specifications) is a standard that specifies formats for images, sound, and ancillary tags used by digital cameras (including smartphones), scanners and other systems handling image and sound files recorded by digital cameras. The specification uses the following existing encoding formats with the addition of specific metadata tags: JPEG lossy coding for compressed image files, TIFF Rev. 6.0 ( RGB or YCbCr) for uncompressed image files, and RIFF WAV for audio files (linear PCM or ITU-T G.711 μ-law PCM for uncompressed audio data, and IMA- ADPCM for compressed audio data). It does not support JPEG 2000 or GIF encoded images. This standard consists of the Exif image file specification and the Exif audio file specification. Background Exif is supported by almost all camera manufacturers. The metadata tags defined in the Exif standard cover a broad spectrum: * Camera settings: This includes sta ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pentax Lenses
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 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Image Sensor
An image sensor or imager is a sensor that detects and conveys information used to make an image. It does so by converting the variable attenuation of light waves (as they pass through or reflect off objects) into signals, small bursts of current that convey the information. The waves can be light or other electromagnetic radiation. Image sensors are used in electronic imaging devices of both analog and digital types, which include digital cameras, camera modules, camera phones, optical mouse devices, medical imaging equipment, night vision equipment such as thermal imaging devices, radar, sonar, and others. As technology changes, electronic and digital imaging tends to replace chemical and analog imaging. The two main types of electronic image sensors are the charge-coupled device (CCD) and the active-pixel sensor (CMOS sensor). Both CCD and CMOS sensors are based on metal–oxide–semiconductor (MOS) technology, with CCDs based on MOS capacitors and CMOS senso ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pentax K200D
The Pentax K200D is a 10.2-megapixel digital single-lens reflex camera, announced on January 24, 2008, along with the higher-end K20D. It was discontinued in December 2008, giving it the distinction of being one of the shortest-lived DSLR cameras. The K200D is the successor to the well-reviewed K100D, K110D, and K100D Super 6-megapixel DSLR's from Pentax, from which it retains body construction, penta-mirror viewfinder and autofocus module. The K200D adopts several of the features of the more advanced K10D, namely its 10.2 megapixel CCD sensor and body weather-sealing. The MSRP of the Pentax K200D was $620 for the body only at launch, or $699 with an updated 18-55mm II 3.5-5.6 kit lens. Features The Pentax K200D has 60 seals for weather/dust resistance. It uses non-proprietary AA batteries like previous Pentax entry-level offerings. The K200D's lens mount is the K-mount; so it is compatible with Pentax (and third-party) lenses dating as far back as 1975 without the use o ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pentax K10D
The Pentax K10D and similar Samsung GX-10 are 10.2-megapixel digital single-lens reflex cameras launched in late 2006. They were developed in a collaboration between Pentax of Japan and Samsung of South Korea. The K10D was announced on 13 September 2006, and released in mid-November 2006, while Samsung announced the GX-10 on 2006-09-21 and it became available on January 1, 2007. The Pentax K20D, successor to the K10D, was officially announced on January 23, 2008. The K10D has been hailed by ''Popular Photography and Imaging'' magazine as "an all-star player," and was named as a finalist for their 2007 "Camera of the Year" award. Technology and construction It combines a 10.2 effective megapixel CCD sensor, coupled with a 22-bit analog-to-digital converter (ADC) and a shake reduction system which also provides a dust removal feature to keep dust off the sensor surface. The K10D features a new image processor called ''PRIME'' (Pentax Real IMage Engine), which interfaces wit ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Image Stabilization
Image stabilization (IS) is a family of techniques that reduce blurring associated with the motion of a camera or other imaging device during exposure. Generally, it compensates for pan and tilt (angular movement, equivalent to yaw and pitch) of the imaging device, though electronic image stabilization can also compensate for rotation. It is mainly used in high-end image-stabilized binoculars, still and video cameras, astronomical telescopes, and also smartphones. With still cameras, camera shake is a particular problem at slow shutter speeds or with long focal length lenses ( telephoto or zoom). With video cameras, camera shake causes visible frame-to-frame jitter in the recorded video. In astronomy, the problem of lens shake is added to variation in the atmosphere, which changes the apparent positions of objects over time. Application in still photography In photography, image stabilization can facilitate shutter speeds 2 to 5.5 stops slower (exposures 4 to ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Analog-to-digital Converter
In electronics, an analog-to-digital converter (ADC, A/D, or A-to-D) is a system that converts an analog signal, such as a sound picked up by a microphone or light entering a digital camera, into a digital signal. An ADC may also provide an isolated measurement such as an electronic device that converts an analog input voltage or current to a digital number representing the magnitude of the voltage or current. Typically the digital output is a two's complement binary number that is proportional to the input, but there are other possibilities. There are several ADC architectures. Due to the complexity and the need for precisely matched components, all but the most specialized ADCs are implemented as integrated circuits (ICs). These typically take the form of metal–oxide–semiconductor (MOS) mixed-signal integrated circuit chips that integrate both analog and digital circuits. A digital-to-analog converter (DAC) performs the reverse function; it converts a digital s ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
PENTAX K110D
The K110D is Pentax's entry-level DSLR. It has 6.1 Megapixels (6.1 Million effective pixels). The K110D is youngest of three sibling cameras in terms of specifications. It differs from the K100D only in lacking an in-body image stabilization system. The K110D has a 2.5 in LCD display screen with 210,000 pixels of resolution. It uses Secure Digital cards to record both JPEG and RAW image formats. The K110D uses AA alkaline batteries to power it, though an AC adapter is also compatible. It has a 23.5 mm x 15.7 mm CCD sensor to record its images. The body itself comprises a stainless steel chassis with a fiber reinforced plastic shell for durability. Continuous shooting mode allows for up to 2.8 frames per second to be recorded, which is five JPEGs (on highest quality setting) or three RAW format images. The Camera is compatible with PictBridge printers. The DSLR is considered "entry-class" among DSLRs. With firmware update, using SDHC cards is possible. Latest firmware ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
