A digital camera takes still photographs or videos or both by recording the images on a light-sensitive sensor digitally. Most compact digital still cameras can record moving video and sound as nicely, apart from still photographs. The sales and recognition of digital cameras have increased now compared to the 35mm film cameras.
Digital cameras have a feature for viewing the image that is recorded immediately on the Camera display screen, the feature that is not obtainable in film cameras. Other functions contain such as the facility to capture a lot of images on a small memory chip, record video along with sound, edit the images, delete the images not required etc. Digital cameras are now accessible along with numerous devices ranging from mobile phones and PDAs to vehicles.
The camera perhaps has been affected more by the digital technologies than any other items. The digital cameras are not a new phenomenon. The 1st digital camera was released by Kodak in the U.S. market around 15 years ago. The DCS-100 model at that time with 1.3-mega pixels was accessible for about ,000. The digital cameras have emerged with much more functions and are obtainable at comparatively lesser prices, even to the extent of at select shops.
The biggest benefit of Digital camera technologies is the storage capability. You can view the photos on the camera itself, on a internet page, a personal computer monitor, or on paper following printing. The digital camera can be connected to the printer directly by means of the USB port for printing photos. People can afford to acquire a digital camera right now as the costs have fallen with the availability of a lot more capabilities.
It is crucial for you to know the problems of image resolution for comparing digital camera models. The unit of graphical representation employed for displaying digital information by Digital cameras is called Mega Pixel (MP). Much more the mega pixels, the greater the resolution of the final image. Still you want to compare digital camera images recorded with your actual requirements.
Some typical resolutions found on Digital cameras are:
256×256 – This is obtainable with quite cheap cameras. Picture top quality is unacceptable.
640×480 – Suitable for posting photos over a web site or for sending photos by e-mail.
1216×912 – This resolution is excellent for printing pictures.
1600×1200 – This is a High resolution normal with about 2 million total pixels.
2240×1680 – This is accessible on most 4 mega pixel cameras.
4064×2704 – This is available on high-end digital camera with 11.1 mega pixels.
Some High-end consumer cameras can record photos of over 12 million pixels. Most professional cameras have 16 million pixels. Big format cameras have 20 million pixels. For comparison sake, it is stated that the high quality of 35mm film is approximately around 20 million pixels. Some varieties of Digital cameras are Point and Shoot, Semi-Expert, Bridge and SLR.
You want to know the total package provided when you compare the prices of digital cameras. You can look for the availability of image-editing computer software, carry case, add-on Memory card and USB cable for working on your pc, when you want to compare the prices and the functions provided. Other general functions that you can look into are the availability of an LCD screen, a timer, a built-in flash, a date & time stamp, optical zoom feature and optical zoom lenses of excellent high quality.
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