The Mydeltapi Webstore - cameras and photographic equipment
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Cameras, digital photography and recording equipment, electronics
Welcome to this online store where you can buy photo equipment, cameras, camcorders, video cameras and electronic equipment for an affordable prize, of find things not available locally where you live. There are products both for hobby use and for proffessional applications.
Good online stores of cameras and
Cameras for special applications, inspection cameras, document cameras
Cameras for general photography
Webcams and computer cameras
Photo and video recording accessories - speedlights, flashlights, camera stands, timers, batteries and housings
Further down there are also hobby products like RC model- and links to other product pages
To see product examples of video cameras and camcorder, please click here
About digital camera techique
Good stores where you can find cameras, camcorders and photographic equipment of high quality
TomTop - A warehouse with a lot of quality cameras, optical equipment and electronic dvices - This warehouse is especially strong in electronic equipment, audiovisional devices, cameras, camcorders, binpculars,telescopes and microscopes. But you find many categories here like apparel and jewelry, home and gardening equipment. health and beuty items, car equipment, sport and outddor gear, toys and hobby gear.
You can find All types of cameras and accessories: Digital SLR, Compact Cameras, Digital Picture Frames, Camera Printer Kits, Lenses, Memory, Batteries, Bags, Cases, Filters, Tripods, Flashes, Tutorials, Studio Lighting, Docking Stations.
The shop has very good daily deal of vrious items. The first of these banners lead to the general page where you can browse for everything. The other leads to the deals of the day.
A general online warehouse with a lot of techical equipment for favourable prices, including cameras. - Here you can find a lot of techical equipment, often for very affordable prizes, including cameras and camcorders.
It is also a good idea to wisit this store if you are looking for some other equipment to use professionally, in your home or in your spear time. The stores have every type of equipment, like hobby items, domestic utensiles, tools, medical items, car equipment, consumer electronics and more.
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Cameras for special applications, spy and inspection cameras
Cameras for spying and secret surveillance
Cameras to record documents or to bring the image to a projector
Endoscopy inspection cameras to inspect inside rooms and objects
Cameras for general photography
Small digital cameras with digital zoom
Waterproof digital cameras
Small digital cameras with TFT-screen and digital zoom
Cameras with advanced lens and optical zoom and TFT screen
Cameras with high resolution, advanced lense with optical zoom and advanced aiming technology
Web-cams, ip cameras, and computer cameras
Photo and video
recording accessories - lights, stands
Stands for cameras and camcorders, solid fixed stands and portable stands
Flashlights or speedlights for photo and other use
HOBBY ITEMS OF ALL KINDS
General hobby equipment collections with all kind of hobby gear, but with somewhat different product inventory - rc models, airsoft guns, electronic kits, science kits, magic tricks and kits, building sets
A general electronic store with a large inventory of electronic kits and components
By clicking at this link, you will find all types of electronic components for hobby use and for professional use in laboratories. You will find electronic sets that can be used to build a lot of sevices and circuits. There are kits for building or installing specific electronic devices like power supplies, wave and pulse generators, measure devices, detectors, alarms, light effect generators, radio resceivers and transmitters and a lot more. You will also find specific components of every kind singly or in bulk.
You will find electronic components or material of every sort in bulk or single: NTE electronic parts, capasitators, dials, knobs, diodes, relays, resistors, potetiomenters, semiconductors of every kind, transistors, diodes, thyristors, speaker wires,
trimmers, hook up wire, wire ties, Heat Shrinkable Tubing - Thin Wall Polyoefin -2:1 Per Package-48in, Heat Shrinkable Tubing - Thin Wall Polyoefin -2:1 Per Package-6in, Heat Shrinkable Tubing - Dual Wall Polyoefin w/Adhesive-3:1 Per Package-6in.
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LINKS TO PAGES WITH OTHER
Internet and mobile telephone products
Advanced camcorders and video cameras
Light organs, psychedelic lights and light effect sets
For measuring and analyzer set
Specific electronic equipment building or installation kits
Electronic transmitters and transmitter kits, please click here
General electronic kits
Alarm kits and security electronics
About digital cameras and camera technique, please scroll down
About semiconductor devices
About resistors, capacitators and inductors, please scroll down
Some important internet services presented
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ABOUT DIGITAL CAMERA TECHNIQUE
A digital camera is an electronic device used to capture and store photographs electronically in a digital format, instead of using photographic film like conventional cameras, or recording images in an analog format to magnetic tape like many video cameras. Modern compact digital cameras are typically multifunctional, with some devices capable of recording sound and/or video as well as photographs. In the Western market, digital still cameras now outsell their 35 mm film counterparts.
Some definition and explanations
Pixel or picture element- A pixel is a point in a picture. The more points a picture has, the clearer is the picture, and the more information about shapes can be stored in the picture. Each picture in a digital camera or a computer is expressed by a combination of digital bits, for example 16 bits. The bits code for color and lightness or darkness.
Usually the pixel has a code for the intenisty of each color in a blending of three or four colors such as red, green, and blue, or cyan, magenta, yellow, and black. In this way most real color nuances can be reproduced with a great accuracy.
Megapixel - This is one million pixels.
Color depth -
This is the maximum number of distinct colors that can be coded in a pixel. It
is dependent upon the number of bits representing the pixel.
- 8 bpp, 28 = 256 colors
- 16 bpp, 216 = 65536 colors - known as Highcolor or Thousands
- 24 bpp, 224 = 16,777,216 colors - known as Truecolor or Millions
- 48 bpp; for all practical purposes a continuous colorspace, used in many flatbed scanners and for professional work
Resolution - This the number of pixels in a picture, of sensor elements in the image sensor of a camera, or the number of pixels that is possible to show on a medium, for example a screen. It is either expressed as the plain number or as the number of pixels when counting in two directions form an streight agle.
VGA 0.3 Megapixels = 640×480
SVGA 0.5 Megapixels = 800×600
XGA 0.8 Megapixels = 1024×768 (sometimes called XVGA)
SXGA 1.3 Megapixels = 1280×1024
SXGA+ 1.4 Megapixels = 1400×1050
UXGA 1.9 Megapixels = 1600×1200
WUXGA 2.3 Megapixels = 1920×1200
QXGA 3.1 Megapixels = 2048×1536
WQXGA 4.1 Megapixels = 2560×1600
QSXGA 5.2 Megapixels = 2560×2048
WQSXGA 6.6 Megapixels = 3200×2048
QUXGA 7.7 Megapixels = 3200×2400
WQUXGA 9.2 Megapixels = 3840×2400
Raster graphics - By raster graphics elements in a picture is stored as pixels and manipulated as pixel collections. Raster graphics are normally used for photography and moovie production.
Vector graphics - By vector graphics elementary figures of a picture are stored as mathematical equations telling where the pixels shall be on the image, and the equations are manipulated. Before display the equations are calculated to render the dispalyable raster based picture. Vector grafics is suitable for animation.
Live-preview digital cameras
The term digital still camera (DSC) most
commonly refers to the class of live-preview digital cameras, cameras that use
an electronic screen as the principal means of framing and previewing before
taking the photograph. All use either a charge-coupled device (CCD) or a CMOS
image sensor to sense the light intensities across the focal plane.
Many modern live-preview cameras have a movie mode, and a growing number of camcorders can take still photographs. However, even a low-end live-preview camera can take better still pictures than a mid-range video camera, and mid-range live-preview cameras have much lower video quality than low-end video cameras; that is, products are not generally optimized for both still and video photography, due to their different requirements.
Among live-preview cameras, most have a rear liquid crystal display for both preview and reviewing photographs. Transfers to a computer are commonly carried out using the USB mass storage device class (so that the camera appears as a drive) or using the Picture Transfer Protocol (PTP) and its derivatives; in addition, Firewire is sometimes supported.
The live-preview cameras are typically divided into compact (and subcompact) and bridge (or prosumer) cameras.
Compact digital cameras
Also called digicams, this encompasses most digital cameras. They are characterized by great ease in operation and easy focusing; this design allows for limited motion picture capability. They tend to have significantly smaller zooms than prosumer and DSLR cameras. They have an extended depth of field. This allows objects at a larger range of depths to be in focus, which accounts for much of their ease of use. It is also part of the reason professional photographers find their images flat or artificial-looking. They excel in landscape photography and casual use. They typically save pictures in only the JPEG file format.
Digital single lens reflex cameras
A digital single-lens reflex camera (digital SLR or DSLR) is a digital camera that operates on the same optical and mechanical principles as a modern electronic autofocus 35mm film single-lens reflex camera. The key difference is that the film is replaced with a CCD or CMOS image sensor plus accompanying electronics, thus creating images digitally in-camera, without the need to first chemically develop a latent image on film.
The ability to exchange lenses, to select the best lens for the current photographic need, and to allow the attachment of specialized lenses, is a key to the popularity of DSLR cameras. This feature is also shared by rangefinder cameras, both film and digital, such as the Epson R-D1 and the Leica M8. Some compact cameras offer optional converters that attach to the end of their fixed lenses in order to mimic the ability to use multiple lenses.
The diameters of the lenses for DSLRs are generally larger than for compact point-and-shoots, resulting in more light captured from the subject, allowing the option of using faster shutter speeds, especially in the case of low-light or moving subjects.
In the digital era, zoom lens design is sufficiently advanced to almost eliminate most of the market for non-SLR cameras with interchangeable lenses, so digital camera lens interchangeability is, in practice, mostly restricted to the digital SLR. Compact digital cameras (non-SLR) have a fixed lens which will zoom from medium wide-angle to medium telephoto, omitting only fish-eye and extreme telephoto.
Most lenses intended for film cameras can be used on DSLR cameras provided the lens mounts are the same, but the reverse is not always true. Newer lenses may use the same style of mount as film cameras, but have newer electronics for image stabilization and image control that a film camera would not recognize. Other lenses designed specifically for DSLR (e.g. Canon EF-S lenses) may not fit on the corresponding film or full-frame bodies; others will fit but their image circle may not cover the full film area and therefore yield an incomplete fram.
Bridge or "prosumer" digital cameras are
high-end live-preview digital cameras (LPDs). They are comparable in size and
weight to the smallest digital single-lens reflex cameras (DSLRs), but they lack
the mirror and reflex system that characterize DSLRs. The terms "bridge" and "prosumer"
characterize the way in which these cameras form a niche between the
professional DSLRs and the consumer compacts. Although bridge cameras join
consumer compacts in the LPD category, they are sometimes confused with DSLRs
due to their similar bodies and larger lenses (as compared to the compacts).
Fujifilm FinePix S9000Bridge cameras tend to have superzoom lenses, which compromises – in varying degrees, depending on the quality of the zoom lens – a "do it all" ability with barrel distortion and pincushioning. Prosumer cameras are sometimes marketed as and confused with digital SLR cameras since the bodies resemble each other. The distinguishing characteristics are that prosumer cameras lack the mirror and reflex system of DSLRs, have so far been always produced with only one single sealed (non-interchangeable) lens (but accessory wide angle or telephoto converters can be attached to the front of the sealed lens), can usually take movies, record audio and the scene composition is done with either the liquid crystal display or the electronic viewfinder (EVF). The overall performance tends to be slower than a true digital SLR, but they are capable of very good image quality while being more compact and lighter than DSLRs. The high-end models of this type have comparable resolutions to low and mid-range DSLRs. Many of the these cameras can save in JPEG or RAW format.
A rangefinder is a focusing mechanism once
widely used on film cameras, but much less common in digital cameras. The term
rangefinder alone is often used to mean a rangefinder camera, that is, a camera
equipped with a rangefinder.
For information on digital rangefinders specifically, check the digital rangefinder section in the main article linked above.
Professional modular digital camera systems
This category includes very high end
professional equipment that that can be assembled from modular components (winders,
grips, lenses, etc.) to suit particular purposes. Common makes include
Hasselblad and Mamiya. They were developed for medium or large format film sizes,
as these captured greater detail and could be enlarged more than 35mm.
Typically these cameras are used in studios for commercial production; being bulky and awkward to carry they are rarely used in action or nature photography. They can often be converted into either film or digital use by changing out the back part of the unit, hence the use of terms such as a "digital back" or "film back." These cameras are very expensive (up to $40,000) and are typically not seen in the hands of consumers.
(Most elements in this article are taken from wikipedia.org, and as such the
article is free to reuse.)
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