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Resources
How To Effectively Use Disposable Wedding Cameras
By ken
Disposable wedding cameras are usually being displayed in the center of each table at most weddings today. Before digital cameras became so popular and affordable to most people, this was the regular Read more...
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Resources
I Need Surveillance Cameras
By John
Home security cameras can prove very useful in every home, even if you live in a very safe neighborhood. Security cameras can act as a deterrent if placed outside of the home, especially if you park Read more...
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Resources
Digital Or Traditional Film Photography?
By Philip Wakefield
There is debate over which of the two formats, digital or film, is superior. It cannot be said that either of the formats is superior to the other in every way. Rather, each of the formats has its Read more...
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A camera is a device used to take pictures (usually photographs), either singly or in sequence, with or without sound, such as with video cameras. The name is derived from camera obscura, Latin for "dark chamber", an early mechanism for projecting images in which an entire room functioned much as the internal workings of a modern photographic camera, except there was no way at this time to record the image short of manually tracing it. ...
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Digital Camera Basics Made Simple
By Joshua
Digital can be perplexing to many beginners. When shopping for a digital camera it is very likely that you will encounter terms like white balance, pixel, ppi and dpi mean and how they affect image and print quality.
You may be probably expected to know the difference between things like optical zoom and digital zoom as well as the advantages and disadvantages between storage formats such as Compact Flash (CF), Microdrives, Sony Memory Stick, Secure Digital (SD), Multimedia and camera interface technologies such as USB 1.1, USB 2.0 and Firewire IEEE 1394. Lets make things simple and go to the basic things you actually need to know.
Pixels
A pixel is a abbreviation of the term PIcture ELement. Digital images are basically made up of small squares, just like a tile mosaic on your kitchen or bathroom wall. Are the more pixels the better? For viewing on the internet, resolutions of 640 X 480 is enough. For a typical 4R photo, you need a resolution of 1200 X 1800.
Difference Between Digital Zoom and Optical Zoom
Most have both optical zoom and digital zoom functions. Optical zoom works just like a zoom lens on a traditional film camera. The lens changes focal length and magnification as it is zoomed. Image quality is high throughout the zoom range. Digital zoom simply crops the image to a smaller size and enlarges the cropped portion to fill the frame again. Digital zoom always results in a considerable loss of quality.
The Storage Wars
There are quite a few different
memory cards used in different digital cameras.
Compact Flash (CF) - The original memory card. Somewhat larger than the others, but used on all high end DSLRs. Available in capacities up to 2GB.
Secure Digital (SD) - Very small - about 24mm x 32mm and 2mm thick. SD cards have a built in write-protect switch to prevent any unintentional removal and certain encryption capabilities. This may be of very little interest for most digital camera owners.
Multimedia - Same size as SD but with less features and no encryption capability. There are some that can be used in some SD but they aren't 100% compatible with SD cards in all applications.
Memory Stick - It is introduced by Sony and used only by Sony cameras.
XD - Developed and used by Fuji, Olympus and Toshiba - even smaller than SD. 20mm x 25mm by 1.7mm thick
There's really no reason to pick a camera with one brand over another unless you have multiple or other devices which may also use the same memory cards. Then it is more convenient if they can share the same cards.
Buying a Digital Camera
Some magazines advertise at low prices yet they charge high shipping cost or they may tell you it is out of stock. Of course they have a more expensive model for you. Shop for only from reputable dealers. At least they probably have a more responsive customer service.
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