Few facts of digital cameras
A digital camera captures images in digital format, unlike a conventional camera that captures images with a photographic film.
History:
Use a mosaic photosensor, Eugene F. Lally of the Jet Propulsion Laboratory first showed photographs of what might occur in a digital domain. An Eastman Kodak engineer Steve Sasson, used solid-state CCD chips to build a prototype camera digital with a resolution of 0.01 megapixels, and recorded digital images to black and white magnetic tape cassette. With this prototype model, Steve took the first image in December 1975, taking 23 seconds to capture it.
In 1988, Fuji DS-1P became the first digital camera that captures images in a file computerized. However, the camera never entered the U.S. market. In 1991, Kodak DCS-100 was the first commercially available digital camera that uses a sensor 1.3 megapixel. With the advance of modern digital cameras have become multifunctional and are now able to capture audio / video and photographs.
Benefits:
1 – You get superior image quality. Digital cameras can offer good resolution, excellent image.
2 – You get a fair price. A digital camera is a reasonable and affordable price.
3 – You can transfer images to your laptop. You can connect the camera digital to your laptop and transfer the images to your hard drive.
4 – You can print at larger sizes. Due to its high resolution, images can be printed in large sizes of any plotter.
5 – You can send photos to your friends. You can send photos by e-mail to their loved ones.
6 – You can store images on CD or hard disk. Once the images are transferred from the digital camera to your computer, permanent storage on a CD or hard drive is possible.
7 – You can take the camera in your pocket while traveling. The small size of the digital camera makes traveling with it easy and a pleasure.
8 – You can move in close to the subject. Zoom lenses offer close-ups of your subject in sharp focus. You can take very good close ups of flowers, insects, stamps, coins, etc.
9 – You can rework the image in a computer. Any photo editing software can rework the images taken.
10 – You can take good pictures even in low light. Due to the flexibility in the sensitivity or ISO equivalents, digital cameras can take pictures easily detailed, even in low light conditions.
11 – You can take quality photos of moving objects. Sports and fashion photography can be easily performed due to the rapid-fire speed digital cameras.
12 – You save money. No need for photographic film, making in the negative and positive. Moreover, batteries are usually rechargeable lithium-ion battery, which lasts a long time.
13 – You can choose according to their needs and fantasy. Many models are available as standard digital camera, digital camera underwater digital camera waterproof, compact digital camera, and professional digital camera.
Storage Media:
Digital cameras use memory to capture and store images. Some of audiovisual media used are onboard flash memory, 3.5 "floppy disk, video, PCMCIA hard drives, CD or DVD, CompactFlash memory cards, Microdrive, Memory Stick, SD / MMC, MiniSD, MicroSD Card, XD-Picture Card, SmartMedia, Memory and FP.
Power:
Digital cameras consume a lot of energy, it is supplied by the powerful, the small size of the batteries. Cells are divided into two groups, namely, off-the-shelf and proprietary. Off-the-shelf batteries are like AA, CR2, CR-V3, AAA, and RCR-V3. They are lithium-ion (Li-Ion) or nickel metal hydride (NiMH). No standard or rechargeable AA alkaline batteries do not work or work only a very short time in most cameras.
Proprietary batteries are built as specified by the manufacturer `s custom and are available as aftermarket replacement parts. In general, lithium ion batteries are widely used as proprietary batteries for digital cameras.
About the Author
This article can also be accessed in portuguese language from the News Article section of page www.polomercantil.com.br/camera-digital.php
Roberto Sedycias works as IT consultant for www.PoloMercantil.com.br
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