1. Digital Camera Kiara Nelson Broderick Beverly

2. Digital Camera is……. An electronic device for recording and storing photographs in digital format…..

3. Timeline of Digital Cameras 1664-1666 Isaac Newton discovers that white light is composed of different colors. 1727 Johann Heinrich Schulze discovered that silver nitrate darkened upon exposure to light. 1794 First Panorama opens, the forerunner of the movie house invented by Robert Barker. 1814 Joseph Niepce achieves first photographic image with camera however, the image required eight hours of light exposure and later faded. 1837 the first image that was fixed and did not fade and needed under thirty minutes of light exposure. 1975 - The first recorded attempt at building a digital camera. The camera weighed 8 pounds, recorded black and white images to a cassette tape, 2004 Kodak ceases production of film cameras.

4. Examples of Digital Cameras

5. This is how Digital Cameras is being used today!!!!!! Digital cameras were one of the hot gifts these holidays the first one for some people, an upgrade for others. Cell-phone cameras are everywhere too, and sites like Flickr and Buzznet not to mention photoblogs make it easy for anyone to share the zillions of photos they're taking. A blogger I know shot a picture in an office building. One of the tenants had boxes of medical records sitting around in an unlocked office, visible from the hall. He published a picture of the boxes, which started a little brouhaha: He didn't have permission from the building's landlord, someone said, so he wasn't allowed to take or publish the photos.

6. Some Advantages of Digital Cameras 1) IMMEDIATE GRATIFICATION: WHEN YOU HAVE A CHANCE TO MAKE A VERY IMPORTANT PHOTOGRAPH, THERE IS NO DENYING THE FACT THAT BEING ABLE TO INSTANTLY LOOK AT A HISTOGRAM, VERIFY YOUR EXPOSURE, DOUBLE CHECK YOUR COMPOSITION, ETC., IS VERY REWARDING AND REASSURING. 2) YOU HAVE THE ABILITY TO IMMEDIATELY DELIVER THE IMAGE TO CLIENT: CLIENTS LOVE BEING ABLE TO GET THEIR IMAGES QUICKLY. IN THE WEDDING AND PORTRAIT BUSINESS OR THE ADVERTISING WORLD, THERE ARE FEW MORE POWERFUL PHRASES THAN; "YOU CAN HAVE THE PICTURE TODAY." 3) INSTANT ISO/WHITE BALANCE CHANGE FROM SHOT-TO-SHOT: IN THE FILM DAYS, I WOULD THINK NOTHING OF REWINDING A ROLL OF VELVIA IF IT GOT TOO DARK TO SHOOT AT ISO 50. I WOULD JUST MOVE TO PROVIA 100 AND WASTE THE REST OF THE ROLL. CHANGING FILM LIKE THAT IS NOT ONLY EXPENSIVE, IT IS TIME CONSUMING. WITH MY DIGITAL CAMERA, I HIT A BUTTON AND CAN CHANGE THE ISO FROM 100 TO 3200 ON A SHOT-BY-SHOT BASIS. I ALSO DON'T HAVE TO WORRY ABOUT ADJUSTING (ADDING FILTERS) FOR INDOOR/OUTDOOR LIGHTING SINCE I CAN CHANGE THE WHITE BALANCE WITH THE CLICK OF A SWITCH. 4) DIGITAL MEDIA IS MORE PORTABLE: I CAN MAKE HUNDREDS OF FULL RESOLUTION EXPOSURES ON MY ONE GIGABYTE COMPACT FLASH CARD, WHICH IS SMALLER THAN A MATCHBOOK COVER. IT WOULD TAKE MORE THAN EIGHT ROLLS OF FILM TO DO THE SAME THING. FILM IS BULKIER. ON A RECENT WORKSHOP, I BROUGHT FIVE ONE-MEG CF CARDS CAPABLE OF HOLDING MORE THAN 1800 IMAGES AND I TRANSPORTED THEM IN MY SHIRT POCKET. IT WOULD HAVE TAKEN MORE THAN 45 ROLLS OF FILM TO MAKE THE SAME NUMBER OF IMAGES. THERE'S NO NEED TO HAND CHECK CF CARDS AT AIRPORTS WHILE FILM IS SUBJECT TO DAMAGE FROM X-RAYS. 5) IT IS EASIER TO STORE DIGITAL IMAGES:

7. Some Disadvantages of digital Cameras 1) HIGHER INITIAL COST: THERE IS NO DENYING THE FACT THAT DIGITAL HAS A HIGHER INITIAL COST. A FLAGSHIP FILM BODY WILL USUALLY COST 50 TO 75% LESS THAN ITS DIGITAL COUNTERPART. 2) DIGITAL CAMERAS ARE NOT EQUAL TO FILM CAMERAS IN FEATURES: MY CANON EOS 3 HAS A FASTER FRAME RATE AND BETTER AUTO-FOCUS THAN MY 20D. WHILE THE DIFFERENCE IN FEATURES BETWEEN THE TWO IS NARROWING FAST, I WOULD HAVE TO GIVE A SLIGHT EDGE TO FILM CAMERAS IN THIS DEPARTMENT. 3) DIGITAL REQUIRES GREATER BATTERY CONSUMPTION: A SET OF BATTERIES IN MY EOS 3 WOULD LAST A WEEK COMPARED TO TWO DAYS IN MY 1D MK II. IF YOU USE A CAMERA WITH A CCD INSTEAD OF A CMOS SENSOR (SAY A NIKON D100 V. A CANON 20D) YOU WILL HAVE ONLY HOURS OF SHOOTING TIME. THIS CAN BE A PROBLEM ON A LONG FIELD SHOOT IN AREAS WHERE ELECTRICITY TO RECHARGE BATTERIES IS NOT AVAILABLE. 4) PERCEPTION PROBLEMS: THIS IS ANOTHER AREA THAT IS QUICKLY CHANGING BUT THERE ARE SOME WHO STILL THINK THAT DIGITAL PHOTOGRAPHY IS SOMEHOW LESS VALUABLE THAN FILM PHOTOGRAPHY. REASONABLE OR NOT, IT IS A STUMBLING BLOCK FOR SOME PEOPLE. 5) POOR LOW-LIGHT PERFORMANCE: EVERY DIGITAL CAMERA I HAVE USED PERFORMS POORLY (WHEN COMPARED TO FILM) IN LOW LIGHT. EVERYTHING FROM POOR AUTO FOCUS TO NOISY IMAGES CAN BE A PROBLEM WITH DIGITAL PHOTOGRAPHY. THERE ARE WAYS TO WORK AROUND THESE PROBLEMS AND THEY ARE QUICKLY BECOMING NON-ISSUES, BUT THEY ARE REAL FOR NOW AND SHOULD BE CONSIDERED. 6) SOME MARKETS REFUSE DIGITAL SUBMISSIONS: SOME SCIENTIFIC OR NATURE MARKETS MAY RESIST DIGITAL FOR FEAR OF "AUTHENTICITY" ISSUES. WHILE FEWER AND FEWER OF THESE DINOSAURS EXIST, THEY ARE OUT THERE AND MIGHT BE A CONSIDERATION FOR A FEW MORE YEARS UNTIL THE PERCEPTION PROBLEMS MENTIONED ABOVE ARE SOLVED. 7) POTENTIAL EQUIPMENT FAILURES:

8. Conclusion of Digital Cameras Most digital cameras have a rocker switch of some sort that is used to scroll through the images you have already taken. Most of these rocker switches will be pressed up or down to scroll through the images, and then left or right to select various informational modes, such as the histogram mode. So, when you take a picture of an important subject, use the little thumb rocker on the back of most digital cameras to select the histogram view of your image. (Check your manual, if you can't figure it out) Your camera meter will be used to get the initial exposure only. Then you will look at the histogram, and see if the image's light range is contained within the limited range of the sensor. If it is clipped off to the right or the left, you may want to add or subtract light with your +/- EV compensation button, or use your manual mode. Expose for the light range with your histogram. Let your light meter get you close, then fine tune with the histogram.

9. Reference page www.ask.com www.google.com www.wikipedia.com www.yahoo.com