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Superzoom
A superzoom or ultrazoom lens is a type of photographic zoom lens with unconventionally large focal length factors, typically ranging from wide angle to extreme long lens focal lengths in one lens. There is no clear definition of a superzoom lens, but the name generally covers lenses that have a range well above the 3× or 4× (e.g., 28-85 mm or 70-210 mm) of a standard zoom lens, with lenses being 10×, 12×, 18×, or above considered superzoom. Advantages of a superzoom lens include compositional flexibility, reduced need to swap lenses, and enhanced portability by consolidating the functionality of multiple lenses into one. Due to trade-offs in the optical design, superzoom lenses are noted for having poorer optical quality at the extreme ends of their zoom ranges, often due to distortion. The longer focal lengths are usually accompanied by optical image stabilization in order to be usable handheld A mobile device or handheld device is a computer small enough to hold an ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
List Of Bridge Cameras
This is a list of bridge cameras, which are loosely defined as fixed-lens digital cameras with DSLR-style bodies and superzoom lenses. Their larger bodies and lenses differentiate them from smaller superzoom compact cameras, also known as travel zoom cameras. Almost all bridge cameras include an electronic viewfinder (EVF) centered above the lens, with the exception of the Canon G3 X (that offered it as an optional accessory) and some low-end models, such as the Nikon B600. All current models include a power zoom lens that retracts when not in use and is controlled by a lever on the body like on a point-and-shoot, but a few past models such as the Fujifilm X-S1 and S9000 included a manual zoom lens controlled by a ring on the lens barrel. Large sensor bridge cameras with at least 16× zoom Each of the following models contains a 1.0-type ("1-inch") image sensor with a crop factor of 2.7. Bridge cameras with constant aperture The Pana ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
List Of Superzoom Compact Cameras
This is a list of superzoom compact cameras, also known as travel zoom cameras. These are small fixed-lens "point-and-shoot" digital cameras that have a high optical zoom ratio. These cameras all include a power zoom lens that retracts into the body when not in use, along with an automatic lens cover or lens cap. Models that include an electronic viewfinder (EVF) have it offset to the side in the style of a rangefinder camera. Their pocketable form factor differentiates them from bulkier DSLR-style bridge cameras. It is exceedingly difficult to construct a compact lens with such high zoom ratios, which means that the longest zoom lenses may not be the sharpest. For example, the Sony RX100 VII (8×) is sharper than the Panasonic ZS200 (15×), and the Sony HX99 (30×) is sharper than the Canon SX740 (40×). Large sensor compact cameras with at least 8× zoom Each of the following models contains a 1.0-type ("1-inch") image sensor with a crop factor of 2.7. Supe ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Superzoom Lenses
A superzoom or ultrazoom lens is a type of photographic zoom lens with unconventionally large focal length factors, typically ranging from wide angle to extreme long lens focal lengths in one lens. There is no clear definition of a superzoom lens, but the name generally covers lenses that have a range well above the 3× or 4× (e.g., 28-85 mm or 70-210 mm) of a standard zoom lens, with lenses being 10×, 12×, 18×, or above considered superzoom. Advantages of a superzoom lens include compositional flexibility, reduced need to swap lenses, and enhanced portability by consolidating the functionality of multiple lenses into one. Due to trade-offs in the optical design, superzoom lenses are noted for having poorer optical quality at the extreme ends of their zoom ranges, often due to distortion. The longer focal lengths are usually accompanied by optical image stabilization in order to be usable handheld.Chris Gatcum, The Beginner's Photography Guide, Dorling Kindersly Limited/Pen ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
List Of Sony Cyber-shot Cameras
The following is a list of Sony digital cameras made under the Cyber-shot brand name. Notes: * DSC is an abbreviation for Digital still camera, Digital Still Camera * Models with a "V"-suffix include built-in Global Positioning System, GPS functionality D series F series G H series All cameras used CCD sensors and had optical image stabilization. The series included bridge cameras and compact cameras. HX series Note: HX is an abbreviation for HyperXoom All cameras used CMOS sensors, could zoom optically while filming, and had optical image stabilization. The series included bridge cameras and Compact cameras with Superzoom. L series The DSC-L1 camera is a zoom version of the ultra-compact Cyber-shot U series featured Real Imaging Processor and 14Bit DXP A/D Conversion. * DSC-L1 (2004, 4.0 Megapixel, MP, 3× optical zoom) M series Compact cameras with a unique vertical-grip design and an articulated screen * DSC-M1 (2004, 5.0 MP, 3× optical z ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Zoom Lens
A zoom lens is a system of camera lens elements for which the focal length (and thus angle of view) can be varied, as opposed to a fixed-focal-length (FFL) lens (''prime lens''). A true zoom lens or optical zoom lens is a type of '' parfocal lens'', one that maintains focus when its focal length changes. Most consumer zoom lenses do not maintain perfect focus, but are still nearly parfocal. Most camera phones that are advertised as having optical zoom actually use a few cameras of different but fixed focal length, combined with digital zoom to make a hybrid system. The convenience of variable focal length comes at the cost of complexity – and some compromises on image quality, weight, dimensions, aperture, autofocus performance, and cost. For example, all zoom lenses suffer from at least slight, if not considerable, loss of image resolution at their maximum aperture, especially at the extremes of their focal length range. This effect is evident in the corners of the image ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Canon EOS 400D Shot With Panasonic FZ5
Canon or Canons may refer to: Arts and entertainment * Canon (fiction), the material accepted as officially written by an author or an ascribed author * Literary canon, an accepted body of works considered as high culture ** Western canon, the body of high culture literature, music, philosophy, and works of art that is highly valued in the West * Canon of proportions, a formally codified set of criteria deemed mandatory for a particular artistic style of figurative art * Canon (music), a type of composition * Canon (hymnography), a type of hymn used in Eastern Orthodox Christianity. * Canon (album), ''Canon'' (album), a 2007 album by Ani DiFranco * Canon (film), ''Canon'' (film), a 1964 Canadian animated short * Canon (manga), ''Canon'' (manga), by Nikki * Shakespeare's plays#Canonical plays, Canonical plays of William Shakespeare * The Canon (Natalie Angier book), ''The Canon'' (Natalie Angier book), a 2007 science book by Natalie Angier * The Canon (podcast), ''The Canon'' ( ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Panasonic Lumix DMC-TZ18 Digital Camera (2010) Set To Maximum Tele, No
is a Japanese multinational electronics manufacturer, headquartered in Kadoma, Japan. It was founded in 1918 as in Fukushima by Kōnosuke Matsushita. The company was incorporated in 1935 and renamed and changed its name to in 2008. In 2022, it reorganized as a holding company and adopted its current name. In addition to consumer electronics, for which it was the world’s largest manufacturer in the late 20th century, Panasonic produces a wide range of products and services, including rechargeable batteries, automotive and avionic systems, industrial equipment, as well as home renovation and construction. The company is listed on the Tokyo Stock Exchange and is a constituent of the Nikkei 225 and TOPIX 100 indices, with a secondary listing on the Nagoya Stock Exchange. Corporate name From 1925 to October 1, 2008, the company's corporate name was "Matsushita Electric Industrial Co." (MEI). On January 10, 2008, the company announced that it would change its name to "Panaso ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Focal Length
The focal length of an Optics, optical system is a measure of how strongly the system converges or diverges light; it is the Multiplicative inverse, inverse of the system's optical power. A positive focal length indicates that a system Convergence (optics), converges light, while a negative focal length indicates that the system Divergence (optics), diverges light. A system with a shorter focal length bends the Ray (optics), rays more sharply, bringing them to a focus in a shorter distance or diverging them more quickly. For the special case of a thin lens in air, a positive focal length is the distance over which initially Collimated beam, collimated (parallel) rays are brought to a Focus (optics), focus, or alternatively a negative focal length indicates how far in front of the lens a point source must be located to form a collimated beam. For more general optical systems, the focal length has no intuitive meaning; it is simply the inverse of the system's optical power. In mos ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Wide-angle Lens
In photography and cinematography, a wide-angle lens is a Photographic lens, lens covering a large angle of view. Conversely, its focal length is substantially smaller than that of a normal lens for a given film plane. This type of lens allows more of the Scene (perception), scene to be included in the photograph, which is useful in architectural, interior, and landscape photography where the photographer may not be able to move farther from the scene to photograph it. Another use is where the photographer wishes to emphasize the difference in size or distance between objects in the foreground and the background; nearby objects appear very large and objects at a moderate distance appear small and far away. This exaggeration of relative size can be used to make foreground objects more prominent and striking, while capturing expansive backgrounds. A wide-angle lens is also one that projects a substantially larger image circle than would be typical for a standard design lens of the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Long-focus Lens
In photography, a long-focus lens is a camera lens which has a focal length that is longer than the diagonal measure of the film or sensor that receives its image. It is used to make distant objects appear magnified with magnification increasing as longer focal length lenses are used. A long-focus lens is one of three basic photographic lens types classified by relative focal length, the other two being a normal lens and a wide-angle lens. As with other types of camera lenses, the focal length is usually expressed in a millimeter value written on the lens, for example: a 500 mm lens. The most common type of long-focus lens is the telephoto lens, which incorporate a special lens group known as a ''telephoto group'' to make the physical length of the lens shorter than the focal length. Effects Long-focus lenses are best known for making distant objects appear magnified. This effect is similar to moving closer to the object, but is not the same, since perspective is a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Penguin Books
Penguin Books Limited is a Germany, German-owned English publishing, publishing house. It was co-founded in 1935 by Allen Lane with his brothers Richard and John, as a line of the publishers the Bodley Head, only becoming a separate company the following year."About Penguin – company history" , Penguin Books. Penguin revolutionised publishing in the 1930s through its inexpensive paperbacks, sold through Woolworths (United Kingdom), Woolworths and other stores for Sixpence (British coin), sixpence, bringing high-quality fiction and non-fiction to the mass market. Its success showed that large audiences existed for several books. It also affected modern British popular culture significantly through its books concerning politics, the arts, and science. Penguin Books is now an imprint (trad ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Optical 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 about the optical axis ( roll). 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 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
