| |||||
Digital Camera - Avoiding Digital Camera ShakesJanuary 10, 2009Home Communication Technologies Electronics Tags: digital camera, photo, photographic camera,
If ever you have seen a picture that is blurred, it is most probably because the camera was shaken while the picture was taken. With traditional photographic film cameras, it was evident only after the negatives and positives were made. However, with digital camera, the captured image can be seen immediately on the LCD screen, and if the image has shaken, then it can be discarded for a new shot.
The shutter speed also plays an important role in blurring the picture. The shutter speed is the amount of time the shutter remains open to allow light to reach the digital camera sensor. It is measured in seconds or fractions of a second. An image is exposed by the combination of the lens aperture and the shutter speed. A slow shutter speed needs a small aperture (large F-stop number) to avoid over exposure. With a slow shutter speed below 1/60th of a second, over exposure is adequately controlled, but the digital camera is likely to vibrate more, giving a shaky picture. A tripod is extremely useful to eliminate digital camera shakes. It is generally used by sports photographers who use long telephoto lens, as it helps in close-ups, landscape and panning shots, for timed exposures, for shooting at slow shutter speeds, and for taking photographs in low or dim light conditions. Shooting a fast moving subject, like athletes, or wildlife, tests the photographer`s skill and the equipment. In such cases, camera shakes are most likely to happen, and thus a monopod or a tripod is always used. Digital cameras mounted on tripods always tend to eliminate camera shakes and give sharp results. A great feature in most high-end digital cameras available nowadays is image stabilization (IS). IS is an anti-shake and vibration reduction technology and is common in digital cameras with long telephoto zooms of 10X and 12X. With IS, sharp images can be obtained even if the camera shakes a little, a slow shutter speed is used, shooting is done in low light conditions, or a tripod is not used. IS was originally developed for video cameras. It is now available in interchangeable lens, consumer and professional digital cameras, which use optical image stabilization. Sports and wildlife photographers use a tripod and IS technology together to get the maximum sharpness of their photographs; however, many other photographers turn the IS feature off while using a tripod. Digital camera shakes can be eliminated or minimized by the utilization of the above techniques. However, the fundamentals of taking a good shot prove to be most effective in avoiding camera shakes, in the absence of tripods, or IS technology. Article Source: http://www.tips.com.my About the Author: This article can be accessed in portuguese from the Article section of page www.polomercantil.com.br/camera-digital.php Roberto Sedycias works for www.PoloMercantil.com.br Dating back from 1876 when Graham Bell was given the patent for the electrical loudspeaker, the speaker remained fairly the same until the 1950's when it was given its modern design and use. Tags: = balance and frequency range of the speakers, speaker, Whatever the case, pirated or fake products have never been able to match the characteristics of the originals. DVDs are no exception to the point; with genuine ones being seen as a wise investment for the long term and duplicates lacking in quality, DVDs are also a targeted market when it comes to piracy. Not only is purchasing a duplicate illegal, but it is also considered to be against morality, akin to an act of stealing. Tags: Original DVDs, Pirated DVDs, Immoral act, DVD artwork, This article is all about the DVD players, the various standards that are available in the new generation of storage medium and the problems. It has also touched upon the problem manufacturers are facing bringing out newer DVD players to support the newer versions of DVD media. Tags: DVD players, DivX, Blu-ray Disk, HD DVD player, This article educates the reader about various aspects of car stereo equipment. It talks about the different brands, features, and components of a car music system. Tags: Subwoofer, Car stereo system, car stereo equipment, amplifier, speaker, A good car stereo system should meet high quality standards for best results. The differences between cheap and expensive car stereos can be well understood by different factors which include sound, features, LCD display, cables and many more. Tags: car stereo system, car audio systems, car stereo equipments, This article discusses the problems that often occur in a car stereo system. It also cites some examples of the usual problems including their solutions. Tags: car stereo, technical device, speakers, auto speakers, The DVD ROM is usually found within the format of DVD games and films. With the huge storage capacity that is available in the DVD, soon the compact disc will be ruled out. Tags: DVD ROM, DVD players, DVD, Multimedia Compact Disc, This article speaks about burglar alarms for car stereos and how they work. It also tries to give readers an idea about the history of invention of such alarms. Tags: alarm system, car stereo, The above article is about subwoofers for the car audio system. It discusses how to buy a subwoofer and the different features of a subwoofer. Tags: Subwoofers, Car audio system, Frequency range, Polarity, Dual voice coil, This is article talks about the technology of LCD televisions. Improvements of LCD technology have increased the customer expectancy towards the quality resolution. Tags: lcd, lcd tv, lcd display, | |||||