Digital camera owes its existence to NASA where digital imaging was developed to help astronauts to navigate their spaceship. During that time, the camera certainly looks different what you have today. It was using a mosaic photosensor to produce digital photograph.

This photosensor was later developed into a charge coupled device (CCD) which most compact digital cameras are having now. The CCD will record the picture when light struck on it. Then the recorded images will be converted into digital data to be display on the LCD screen and later stored in memory.

As the technology improves, these cameras were developed into a few categories and among the few famous one are the compact digital camera, bridge camera and DSLR (digital single reflex lens) camera.

Compact digital camera is the point and shoot camera that occupied the consumer market. It is smaller in size, affordable and suitable for occasional photographer. Bridge camera is the camera that shares the feature of point and shoots camera and DSLR camera. It has similar manual control as DSLR and cheaper than DSLR. DSLR camera is considered as the professional camera and you can change lenses depending on the purpose of your photography.

Now, you can only enjoy digital photography when you have the right camera. When you are starting on photography, you should start with compact or bridge camera. Not just that DSLR is more expensive, it is also more complicated. You will have problem enjoying the hobby when you have problem appreciating your tool.

Photography Lighting Techniques

Lighting can be either your best friend or worst enemy. Lighting techniques in photography are varied and can be easy or they can be difficult, it’s upt to you. It will depend on what you are shooting. Maybe you want to take photos of cityscapes at night or photos in full sunlight – for good results you will need to understand good photography lighting techniques. Once you understand the basics of photography lighting techniques you will transform your photos into works of art.

Indoor Lighting Photography Techniques

There are different types of lighting you can use for indoor shots. Try using natural lighting that comes from windows, ceiling lights, candles, log fires, and any other indoor lighting. Many photographers use this to give a natural feel to their work. Often, though, there may not be enough natural light indoors. If this is the case, take a tip from portrait photography lighting techniques. Portrait photographers use big lights to flood their subject for the best results. The good thing is you can experiment with the light you have indoors.

Try taking a photo of your subject in different parts of the room using different types of lighting. This will give you an idea of what works. Experiment with the early morning sun streaming through the window then try backlighting the same subject and see the different effects. Indoor lighting subjects include a whole host of techniques and methods. It will become a natural instinct the more you play around with different effects.

Black and White Photography Techniques

Black and white photography techniques can produce some really nice results. If you are using a digital SLR camera, you will most likely have the option to capture your photos in black and white mode. Don’t use this mode. Use full colour so you get the full depth of light and shade. Use a photo manipulation program like Adobe Photoshop to transform your image into black and white. This gives you the flexibility to manipulate the output which you would not have if you took the photo in black and white.

If you really want to experiment with your camera in black and white mode, try using side lighting. Side lighting will create shadows on ordinary objects and give them a different perspective. This is an effective black and white photography technique that has great results on objects that are highly textured. Experiment by changing the camera angle and different lighting techniques. Use side lighting to enhance your black and white landscapes, people and buildings.

Street Photography Techniques

Street photography can produce some amazing results. They are shots of day to day occurrences; outdoor shots taken as asnapshot in time. Standing still or squatting while you watch and listen is a good technique; focus on what is happening around you. See the world differently. There is nothing more interesting than a candid shot of a moment in time. Here are some street photography techniques that may help you when out on the street:

- Tune into your surroundings. Learn to sense moments of climax such as laughter or loud voices.

- Be relaxed and enjoy your surroundings.

- Use crowded places you can walk in and out of to get your candid street shots.

- Don’t be invasive of people’s personal space, try using a zoom lens. This will not always work and you can lose some of the emotion you are trying to capture.

- Learn to take photos without bringing the camera to your eye. Practice taking photos from any position.

When using Christmas lights, basic precautions should always be observed including the following holiday light safety tips;

Your holiday lights are not toys! To avoid risk of fire, burns, personal injury and electric shock, the holiday lights should not be played with or placed where small children can reach them.

Do not use Christmas lights outdoors unless the lights are marked suitable for outdoor use. When outdoor Christmas lights are used in outdoor applications, connect the outdoor Christmas lights to a ground fault circuit interrupting [GFCI] electrical three pronged outlet.

Seasonal holiday lights are not intended for permanent installation or use. Store all holiday lights in a dry cool storage area.

Do not mount or place Christmas lights near gas or electric heaters, fireplaces, candles or other similar sources of heat.

Do not secure the holiday light sets with staples or nails since they could damage the protective wire coating.

Do not place the wire on sharp objects.

Do not let the holiday light bulbs rest on the lights supply cord or on any other electrical wire.

Unplug the Christmas light bulbs when retiring for the night or if the lights are left unattended. You can use an approved three pronged plug timer to turn your lights On and Off so you do not have to unplug your lights.

To reduce the risk of fire or electrical shock, do not mount or support the Christmas lights in a manner that can cut or damage the light sets.

Do not close your doors or windows on the Christmas lights or extension cords as this may damage the protective wire insulation.

When the lights are in use do not cover the Christmas holiday light bulbs with cloth, paper or any material not part of the light set.

Only use United States UL approved 110 / 120 volt Christmas lights.

If your Christmas lights are equipped with push-in type light bulbs, do not twist the holiday light bulbs. Pull the bulbs straight out of the light bulb socket.

To reduce the risk of overheating, replace any burned out light bulbs promptly. Make sure you use the same volt and wattage replacement light bulbs.

Always unplug your Christmas lights before installing or replacing the light bulbs.

Do not overload the electrical wiring of the holiday lights. Only connect the recommended amount of party light sets [usually three sets if not stated in instructions] on one continuous light string.

To avoid the risk of fire, do not replace the factory light plug. The factory plug contains a safety device (fuse) that should not be removed. Discard the holiday light set if the plug is damaged.

Always read the manufacture’s complete use and care instructions for the holiday light bulbs.

Safety Tips For Lights With Overload Fuses:

A blown fuse indicates an overloaded circuit and you need to reduce the amount of lights connected to the circuit. A blown fuse may also be caused by a short-circuit. The Christmas light set with a short-circuit should be discarded. Always unplug your lights before installing or replacing the light fuses. To avoid the risk of a fire, replace the blown fuses with like amp and volt fuses.

With all these technology backing you up, you are now more likely to be able to take great photos. So, what you need to do now is to choose the right camera. Always look at what you need. When you have problem choosing the camera, get the retailers or professionals to help you. They will are experience enough to fit the best camera to your needs.

Then you need to practice digital photography with your camera. Always keep your camera close to you. You never know when the best subject will comes out. When you are taking your pictures, remember to take more shots and different angle of your subject. With digital photography, all your pictures will be converted to digital storage and you need not to worry about spending money for films.

After that you need to compare the photos you have taken. This is the trial and error stage where you find out the best way to photograph your subject. Which of them looks better? Ask yourself why you this picture is better than the other? Think about what will happen when you change the white balance to photograph the same subject. Sometimes, challenging yourself is how you improve your digital photography skills.

During the comparison of your photos, you also need to recall what you did to the photos. This is because when you move forward with digital photography, you are supposed to consistently pump out great photos. You are supposed to know how to position yourself to take great photos of your subject. You are supposed to know how to use your flash under different circumstances instead of trial and error with your pictures.

The last tip to taking great pictures is that you must constantly update yourself. Go online, read magazines and visit exhibitions to find out how other photographers are taking their photos. It is even better that you can talk to other photographers and have them comment on your work.

1.Introduction of First Digital Camera – Mavica

Since the above invention world had to wait around five years to see breakthrough in digital photography. In year 1981, world renown Sony Corporation introduced the first prototype digital camera which was called Mavica (Magnetic Video Camera). This new camera called Mavica was an electronically operated still camera with two CCD chips, It recorded images using magnetic impulses on to a compact two-inch diameter still-video floppy disk. However the first digital cameras for mass market were available in mid nineties.

It could be hooked to a computer through a serial port cable. For example, the cameras which came out with such facilities were Apple Quick Take 100 camera (February 17, 1994) worked with a home computer via a serial cable. The other similar digital models were introduced to the market by Kodak (DC40 camera in March 28, 1995), Casio ( Casio QV-11with LCD monitor in late 1995), and Sony ( Cyber-Shot Digicam in 1996).

2. Digital Image Software and Printers

Although there were several manufacturers came out with different types of digital cameras, none was so popular as Kodaks DC40 digital camera which produced for mass markets. Later Microsoft and Kinkos both collaborated with Kodak to introduce the digital image-producing software workstations and corner shops. The consumers were able to use these software and corner outlets to develop photo CDs and photographs as well as adding digital images to the documents. Similarly, IBM worked with Kodak introducing the internet-based network image exchange. At the same time, Hewlett-Packard was the pioneering company to make the first color inkjet printers that helped consumers to print good quality images which was an impetus to the popularizing the digital photography.

3.True Digital Camera

In 1988, Fuji developed the true digital camera, DS-1P which could record images in the form of computerized file. Other unique feature of this camera was its internal memory chip with a capacity of 16 MB while using a battering to store. However, it was noted that this Fuji camera never marketed in the United States or not even in Japan. As such, we can reasonably assume that the first commercially produced digital camera was Logitech Fotoman (in 1990) which was also called as Dycam Model-1. This camera used a CCD sensor which stored images digitally and later cold be transferred to Personal Computer (PC).

The background or evolvement of digital photography stress that that the future is the digital photography. This is already proven as the recent market surveys indicate that in year 2006, approximately 35 billion images were printed or stored in Western Europe.

First Light: The Dim Beginning

It was a dark and stormy–well, it was certainly a dark night, but that would soon change. The year was 1809, and an English scientist by the name of Humphry Davy was about to make the world a brighter place. He had come up with a rudimentary battery to which he attached some wires. In between these wires he affixed two pieces of charcoal, which–we can only assume–surprised him when they began to glow. Thus the light bulb was conceived, or at least electric arc, the phenomenon that made the charcoal glow for Davy, was discovered.

It wasn’t until 1820 that Warren De la Rue attempted to produce the first incandescent light bulb. Enclosing a platinum coil inside of an evacuated tube, he ran a current through and there was light. The longevity had improved greatly from Davy’s carbon strips, but the cost of platinum was prohibitive.

Success! A Little More Light on the Subject

With so many scientists around the globe working to produce a practical light bulb, it was only a matter of time before somebody got it right. In 1879, this happened–twice. Thomas Alva Edison and Wilson Swan had independent breakthroughs. Both designs were based on a carbon fiber filament, which was derived from cotton. Though a huge step in the right direction, this bulb lasted a scant 13.5 hours. Edison redoubled his efforts to create a longer-lasting light, and only one year later, he developed a bamboo-derived filament that could last for over one thousand hours.

More developments came, though years later. Karl Auer used an osmium filament in 1898. In 1903, Siemens and Halske, a German engineering team, used tantalum. Both theirs and Auer’s developments improved light bulb burn time.

1906 through 1910 saw the development of ductile tungsten and then its use in a light bulb. Thanks to the efforts of William Coolidge and the General Electric Company, this became the practical, long burning solution that would light our way for most of the twentieth century. Some improvements were made to prevent the tungsten from burning up and coating the inside of bulb with soot. The gases that were added to stop the soot, argon and nitrogen, were also found to carry heat away from the filament, making it last even longer.

Seeing Things in a Different Light

When all of this excited about incandescent lighting was going around, circa 1857, a French physicist by the name of Alexandre E. Becquerel was putting his time into fluorescence and phosphorescence. He experimented with various tubes and coatings, but never quite had success.

A German physicist, Julius Plucker, and a glassblower, Heinrich Geissler, got together in the mid 1800s to further Becquerel’s work. They found that passing a current through a glass tube containing tiny amounts of a gas made light. Much like the French forerunner, they did not have much success. There were, of course, many others attempting to produce practical vapor lamps, but they too failed.

Without all of their work, though, Peter Cooper Hewitt wouldn’t have been able to produce the world’s first mercury vapor lamp in 1901. This lamp was the predecessor to the fluorescent lights we have today, which use electricity to excite mercury vapor, creating luminescence.

Beginning to See the Light: A Brighter Future Emerges

Electroluminescence, discovered by Englishman Henry J. Round in 1907, doesn’t just sound cool; it’s the guiding principle behind light emitting diodes (LEDs). The first LED was created independently of Henry J. Round by a Russian scientist named Oleg Vladimirovich Losev in the mid 1920s. No practical use came about for decades, though.

In 1955, Rubin Braunstein observed that simple diodes using gallium antimonide (GaSb), gallium arsenide (GaAs), indium phosphide (InP), and silicon-germanium (SiGe) all produced infrared light. It was in 1961 that the first infrared LED was patented by Bob Biard and Gary Pittman; it used GaAs.

All of this intensely scientific research culminated in the 1962 with Nick Holonyak Jr. inventing the first visible-spectrum LED. He earned the title, Father of the Light-Emitting Diode, for this one. It wasn’t until 1976 that a high-brightness, high-efficiency LED was invented by T.P. Pearsall. Despite the prohibitive price at the time, Hewlett Packard used red LEDs in their early handheld calculators’ alphanumeric displays.

Since the birth of practical LEDs in the 1960s, their efficiency and light output have increased exponentially, doubling about every 36 months. Organic LEDs (OLEDs) are now being used to make the thinnest, highest-definition displays ever created, and they are only one of the many LED innovations.

LEDs Light the Way

LED light bulbs have become extremely efficient, now boasting an 80 to 90 percent power savings over the archaic-seeming incandescent bulb, while producing similar brightness. Not only that, but LED light bulbs can last longer than 100,000 hours, which is more than eleven and a half years of constant burn.

Their versatility is staggering. Used by hikers in ultra-light, ultra-bright headlamps; car manufacturers as stylish, highly functional lights; and engineers in state-of-art fiber-optic technology, these little light bulbs can do pretty much anything. They can even replace nearly every other light bulb already in use, from your home to your local stadium.

Another advantage, LED lights are environmentally friendly and not just for their power sipping ways. The push towards compact fluorescent bulbs has put mercury in homes across the nation. LED light bulbs last longer, light instantly, run silently, replace a wider array of other bulbs (including halogen lamps), are more durable because of their solid-state design, and don’t contain toxic elements.

Following is a list of differences that are important to understand. The differences are listed in no particular order.

The sensor: The most obvious difference between film and digital is the sensor used to take the photo. With film cameras a film sensitive to light is placed behind the lens. When a photo is taken the shutter opens for a predetermined period of time and light hits the film. The result is a photo “printed” on the film. To take a new photo the film has to be rolled and a fresh “clean” film is place behind the lens. With digital cameras a fixed electronic sensor (sometimes known as CCD) is situated behind the lens. The sensor is built from tiny light sensitive sensors each representing a pixel. When the shutter opens light hits the sensor and each pixel gets its “value”. Put together all the pixels comprise one photo. To take a new photo the photo is saved on a digital media and the CCD is electronically emptied.

What does a different sensor mean? The main difference is in the Depth of Field. Since digital sensors are smaller in size than a 35mm film the depth of field will be much higher and in fact in most compact digital cameras almost infinite. The result is that blur backgrounds can not be created.

The cost of a photo: Photos taken with a digital camera literally cost nothing. The photos are kept in erasable memory and thus can always be discarded at no cost. Also the photos you would like to keep can be copied to digital media such as a computer’s hard disk. With storage prices going down the cost of saving a photo on disk is practically zero. Film does cost money. With a film camera you have to pay for the roll of film, for developing the negative and for printing the photo. Every time you press the shutter button you spend money.

The capacity: With ever growing storage capacities digital cameras today can hold hundreds and sometimes thousands of photos on a single media. You can always have a few more in your pocket and changing is very fast. The result is that a digital camera has practically infinite capacity. You can shoot as many photos as you want and at the end of the day just dump them on your computer’s disk. Film cameras’ capacity is very limited. A roll of 36 photos can only hold 36 photos. After a roll is used changing to a new roll can take time and is not easy to do in scenarios such as darkness or a harsh environment. For that reason many professional journalists carry a few cameras on them and instead of changing rolls they turn and use another camera just so that they do not miss a shooting opportunity.

The feedback: One of the most important features of the digital camera is instant feedback. Almost all digital cameras include a small LCD screen. Once a photo is shot you can go back and watch it on that screen. The ability to see how the photo looks like results in better photos. If the photo is not good you can take another one. Being able to see the photos on the spot results in an educated decision how to fix a photo or how to better compose it. It takes a lot of the guessing away from photography. With film cameras there is no way to know how the photo on the film will look like when printed.

New shooting angles: Just a few days ago I took a great photo with my digital camera that I would have never taken with my film one. I shot a cat that was resting on little rock. I held the camera in my hand and positioned it down where it almost touched the ground and I started shooting. I probably took 50 or more photos. I immediately looked at the camera’s LCD to review my photos and make sure they were focused and had the cat in them. The result was one great photo looking at the cat from the ground. I can not imagine myself just lying down on the dirty ground with a film camera looking through the viewfinder and perfecting that one shot.

With digital cameras you can actually take photos without having your eye glued to the viewfinder. Overhead shots where you raise the camera over your head are much easier to do since you can still see what the camera is shooting by just looking up at its LCD screen.

Correcting photos: With digital cameras photos can be corrected using photo editing software. Some correction abilities are built-in to the cameras but many more are available as software packages for your PC. With film cameras what you get is what you get. After the film is developed it is very hard to make any corrections. Usually if corrections are absolutely needed the negative or the printed photo will be scanned (i.e. converted to digital) corrected and then printed again (in a long and costly process).

Changing conditions: Every roll of film is designed for best results in a specific environment. For example there are indoor and outdoor films or films with different light sensitivity. If conditions change rapidly a film camera user will have to either shoot with the wrong film, change the roll (and usually lose photos that were not used in the current roll) or use another camera with a different film in it. The results of shooting with the wrong film can be distorted colors (reddish photos for example), a grainy photo and more.

With digital cameras the characteristics of the sensor can be changed instantly for each photo taken. With a click of a button the camera can be put in an indoor or outdoor mode, low light, night photography etc. Some cameras will automatically sense the scenario and set the sensor mode accordingly.

The myth of quality: While it is true that film photography has its advantages the claim for superior quality is no longer true. As digital camera evolved the quality of high end digital SLR cameras is superb and in many ways even better than film. When considering quality you should also consider the quality in terms of composition and the scenario caught in the photo. With digital cameras’ high capacity, zero photo cost and instant adaptability to changing conditions photographers can produce better compositions and experiment more to get the best photo possible.

Longevity: We have also paged through old photo albums of our grandparents. The photo looked a a bit yellow, scratched and just plain “old”. Storage of printed film photos or even negatives results in quality deterioration. Digital photos on the other hand never lose their quality. A digital photo will be identical today and 500 years from now. As long as we remember to refresh the digital media every now and then and to back it up our photos can literally list forever and not lose their quality.

Left hand guitar techniques can pretty much be moved from one musical genre to another. One exception I can think of is the technique of fretting bass notes by wrapping your thumb around the guitar neck. This technique is not used in all genres even though you are welcome to try it out in whatever you are playing, but it is downright frowned upon in classical guitar playing.

One technique that is used in classical and rock guitar playing is the use of the right hand to damp the sound of the strings. You put the side of your hand over all six strings and then pluck with your fingers or use up and down strokes with the pick. If you try it on your electric guitar you will instantly recognize the sound from numerous punk or metal tracks. A variation on this technique is to have your hand “floating” above the strings and bring it down to damp your notes just after you have played them.

Common to all kinds of plectrum guitar styles is the invention and use of strumming patterns. The “pattern” is varied by whether you use up or down strokes with your pick and in what order. A basic pattern is made by just alternating up and down strokes across all six strings in time with the music. Once you are comfortable with this technique you can vary it by using two up strokes together or two downstrokes followed by upstrokes, or you can just play the three bass or treble strings.

Whether or not you are exclusively a plectrum or finger-style guitar player you should at least experiment with the flamenco strumming technique known as rasqueado. With this style of strumming you are making use of each of your four fingers alternately to produce a completely different effect from plectrum strumming. To start you can rest the thumb on the sixth string and just strum the fourth, third, second and first strings. Begin by having all the fingers curled up, then drag each one across the strings in succession starting with the pinky. Play slowly at first and just use downstrokes.

Once you are used to playing down strokes using this flamenco technique, you can stop resting your thumb on the sixth string and follow your fingers down with it. So now you are playing five down strokes in succession. You can play a series of these rasqueado and join them up by performing an upstroke with the thumb. To summarize, you do downstrokes with the pinky, ring finger, middle finger, first finger and thumb. This gives you a long continuous strum. Then to begin another rasqueado, you bring your thumb up across the strings and start again with the pinky.

This digital photography software can sometimes be found with the digital camera that you buy. In the digital photography software there are various items to be found. These different programs will allow you to manipulate the pictures that you have taken when they are finally on your computer.

There are different types of digital photography software that can be found and used. You will need to make sure that all of the features in the software work properly before you download any of your stored images. The software can be ZoomBrowser EX 5.1, ArcSoft PhotoStudio, PhotoStitch and ImageBrowser 5.1 among the many varieties.

There are different types of digital camera software that you can use for Windows computers and ones for Mac computers. A few of these differences are found in the browser programs. The ImageBrowser 5.1 is to be used with Mac computers and it allows you to view, archive and manage your digital photographs. This is true for the Windows version, the ZoomBrowser 5.1.

To make these many different types of digital photography software work you will need access to device drivers. These drivers that you must have in your computer’s hardware should be TWAIN for Windows 98/2000. For Windows ME you should have WIA installed.

Besides these digital photography software you also need to have a Picture Transfer Protocol or a PTP on your computer. This Picture Transfer Protocol provides the support that you need for your digital camera to connect to any Windows XP (SP1 – 2) or Mac OS X (v10.1.5 – 10.3). With this transfer protocol you don’t need to look for the various requirements that are needed for device driver installation.

By looking at these various digital photography software you can gain an idea of the types of software that you will need to buy. The different kinds of software that is available today should not be that expensive.

You will however need to see if these various programs are compatible with your computer and your digital camera. The various features that are found with digital photography software, allows the camera enthusiast to create the masterpieces that they want.