CassBeth Photography Glossary Digital-cameras

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CassBeth welcomes you to our Photography shop featuring 35mm cameras, albums, aps cameras, binoculars, books, cases bags, digital camcorders, digital cameras, drives, film, filters, flashes, frames, really cool guides, instant cameras, lens, memory cards, minox cameras, night vision, nikon, photo software, scrapbooks, slr cameras, telescopes, tripods, underwater cameras, zoom lens, and many other great items. If you can't find it here visit our really great electronics shop.

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Digital Cameras

Digital Cameras

Compatible memory type(s)
Digital zoom
ISO film speed equivalency
Macro focus range
Maximum CCD resolution
Onboard memory
Optical zoom
Serial output
USB (universal serial bus) output
Video output

Compatible memory type(s)
The type of storage medium a camera uses to store its images. Most cameras accept only one type, and none of the types are interchangeable. Each format has its pros and cons, and the fact that none has yet become dominant suggests that there's no "best" format yet.

Digital zoom
Also known as "simulated zoom." With digital zoom, the camera takes a small portion of an image and uses interpolation to artificially restore the file to its original size. Unlike optical zoom, digital zoom does not require any moving parts, so it's much cheaper to manufacture. Unfortunately, digital zoom also reduces the resolution of an image. Anyone can "digitally zoom" images at home by cropping and enlarging a picture with photo-editing software, so this feature is virtually worthless.

ISO film speed equivalency
A measurement, borrowed from traditional film cameras, of light sensitivity. The higher the ISO rating, the better the camera will perform in low-light conditions. Most digital cameras have ISO ratings of around 100.

Macro focus range
A separate setting for extreme close-up (or "macro") shots. Without a macro setting, cameras may not be able to focus on objects that are close to the lens.

Maximum CCD resolution
The CCD (charge-coupled device) is the light-sensing device inside a digital camera and is composed of an array of individual sensors, or pixels, that "see" the image coming in through the camera's lens. The maximum CCD resolution is the total number of pixels in a camera's sensor, so the higher the resolution the greater the detail in a picture.

Onboard memory
Some digital cameras have built-in memory in lieu of (or in addition to) removable media to store their images. Onboard memory is less expensive (and less flexible) than removable memory, and it's usually seen only in entry-level cameras.

Optical zoom
Also known as "telephoto" or "true zoom," optical zoom works like the zoom on a traditional film camera. Elements within the lens move, reducing the field of view and making the object you're shooting appear closer.

Serial output
An outgoing connector compatible with virtually all PCs and beige (pre-iMac) Macintoshes, making serial connections the most universal of transfer formats. However, it's much slower than USB.

USB (universal serial bus) output
An outgoing connector compatible with virtually all PCs made since 1998 and all "colorful" Macs. A USB port is much quicker and more user-friendly than a serial port, but it is also a more recent innovation not found on older computers.

Video output
Allows you to view your digital pictures on your TV or record them on a videocassette.


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