| A digital camera captures images in a digital | | | | flowers, bugs, stamps, coins, etc. |
| format, unlike a conventional camera, which | | | | 9 - You can rework the image in a computer. |
| captures images using a photographic film. | | | | Any photo editing software can rework the |
| History: | | | | images taken. |
| Using a mosaic photosensor, Eugene F. Lally of | | | | 10 - You can take good pictures even in low-light |
| the Jet Propulsion Laboratory first showed how | | | | situations. Due to flexible over sensitivity or ISO |
| still photos could be produced in a digital domain. | | | | equivalents, digital cameras can easily take detailed |
| An engineer at Eastman Kodak, Steve Sasson, | | | | pictures even in low-light conditions. |
| used solid-state CCD chips to build a prototype | | | | 11 - You can take quality still photos of moving |
| digital camera having a resolution of 0.01 | | | | objects. Sports and fashion photography can be |
| megapixel, and recorded black and white digital | | | | easily accomplished due to the fast burst rate of |
| images to a magnetic cassette tape. With this | | | | digital cameras. |
| prototype model, Steve took the first image in | | | | 12 - You save money. There is no need of buying |
| December of 1975 taking 23 seconds to capture | | | | photographic films, developing them into negatives |
| it. | | | | and positives. Moreover, the batteries are usually |
| In 1988, Fuji DS-1P became the first digital | | | | rechargeable lithium-ion batteries, which last a long |
| camera that captured images as a computerized | | | | time. |
| file. However, the camera never entered the U.S. | | | | 13 - You can choose as per your needs and |
| market. In 1991, Kodak DCS-100 was the first | | | | fancy. Many models are available like standard |
| commercially available digital camera, which used a | | | | digital camera, underwater digital camera, |
| 1.3 megapixel sensor. With the advancement of | | | | waterproof digital camera, compact digital camera, |
| technology, modern digital cameras have become | | | | and the professional digital camera. |
| multifunctional and are now capable of capturing | | | | Storage Media: |
| audio/video and still photographs. | | | | Digital cameras use memory to capture and store |
| Benefits: | | | | images. Some of the storages media used are |
| 1 - You get superior image quality. Digital cameras | | | | onboard flash memory, 3.5" floppy disks, video |
| can offer good to excellent image resolution. | | | | floppy disk, PCMCIA hard drives, CD or DVD, |
| 2 - You get a fair price. A digital camera is | | | | CompactFlash memory cards, Microdrives, |
| reasonably priced and is affordable. | | | | Memory Stick, SD/MMC, MiniSD Card, MicroSD |
| 3 - You can transfer the pictures to your laptop. | | | | Card, XD-Picture Card, SmartMedia, and FP |
| You can easily connect the digital camera to your | | | | Memory. |
| laptop and transfer the pictures in your hard disk. | | | | Power: |
| 4 - You can print in large sizes. Due to its high | | | | Digital cameras consume a lot of power, which is |
| resolution, pictures can be printed in large sizes by | | | | supplied by powerful, small in size batteries. |
| any plotter. | | | | Batteries are broadly divided into two groups, |
| 5 - You can email the pictures to your friends. | | | | namely, off-the-shelf and proprietary. |
| You can send the pictures by email to your loved | | | | Off-the-shelf batteries are like AA, CR2, CR-V3, |
| ones. | | | | AAA, and RCR-V3. They are lithium-ion (Li-Ion) or |
| 6 - You can store the images in CDs or hard disk. | | | | Nickel metal hydride (NiMH) batteries. Standard AA |
| Once the pictures are transferred from digital | | | | non-rechargeable alkaline batteries either do not |
| camera to the computer, permanent storage on | | | | work or work for only a very short time in most |
| a CD or hard disk is possible. | | | | cameras. |
| 7 - You can take the camera in your pocket while | | | | Proprietary batteries are built as per the |
| you travel. The small size of the digital camera | | | | manufacturer`s custom specifications and are |
| makes traveling with it easy and a pleasure. | | | | usually available as aftermarket replacement parts. |
| 8 - You can move in close to your subject. Zoom | | | | Generally, lithium ion batteries are widely used as |
| lenses offer close-ups of your subject with sharp | | | | proprietary batteries for digital cameras. |
| focus. You can take very good close-ups of | | | | |