Digital Cameras & Digital Photography

Christine Peppler asked:


Any time a camcorder is handheld there is a likelihood of camera shake occurring due to unintentional hand movement or shakiness. One of the best ways to eliminate this problem is to use a tripod whenever possible. However, the situations in which it is unhandy to use a tripod, or one is not available, are too numerous to mention. Thus, the average user typically operates without a tripod with the result being tremulous or jerky films.

Thankfully, camcorder manufacturers offer a variety of methods to reduce the effect of inadvertent movements. The two most common features offered on current camcorders are electronic and optical image stabilization. Electronic stabilization, also termed digital stabilization, is the more economical means of steadying images. However, optical stabilization, or mechanical stabilization as it is also described, tends to offer superior performance. There are also other differences between these two methods of image stabilization that potential buyers should consider before making a purchase.

In order to “stabilize” an image, the camcorder must first “sense” the movement, differentiate it from intended movement of the camera, and then compensate for image changes due to unintended movement.

With electronic stabilization, the image on the CCD is compared from frame to frame. If the image moves from one frame to the next, the camcorder will stabilize the image by eliminating the portions of the image around the outer edge; the portion which varies from one frame to the next. Once this portion of the image is eliminated it is filled in by digitally expanding the center portion of the image. When a portion of the image is eliminated and the remaining pixels are left to fill in the area, the quality of the resulting image is often compromised. Because the digital zoom function used on many camcorders has a similar effect of reducing image resolution, it should never be used in conjunction with electronic stabilization.

A camcorder with electronic stabilization should be able to differentiate the movement of a subject, say a bicyclist riding across the field of view, versus the movement of an entire image or scene caused by shakiness. However, it is still best to disable image stabilization whenever panning to capture intended movement to assure that the camcorder does not attempt to stabilize such motion.

Electronic stabilization works best outdoors and in situations where lighting is very good. Because electronic stabilization adds no additional moving parts, camcorders with this type of feature tend to be smaller and lighter weight that camcorders which employ optical stabilization.

Camcorders with optical image stabilization sense movement via built-in gyrosensors which detect motion and signal adjustments to the camcorder lens which redirect incoming light to counteract small movements. This is a more complex process but does not result in the loss of image resolution as all image information is retained. Optical stabilization is thus more effective in low-light situations and when zoom is used. In addition, the optical stabilization method seldom results in false interpretation of intended versus unintended movements. On the other hand, with a more complex lens and additional moving parts, camcorders which employ optical stabilization tend to be larger and consume more power than their electronically oriented counterparts.

Image stabilization is an important feature for some buyers who wish to produce films that are smoother and absent of much of the jerkiness present in handheld shots. The difference between electronic and optical stabilization however, can be significant. Thus knowing which type of stabilization is present on any camcorder being considered for purchase is critical.

Amrendra Kr. Singh asked:


Hardly any other products have wider presence in the market than the much shouted electronics or home electronics. Though, even this term is much wider and it simply represents a combination of several electronic gadgets which have become the life line of people for their different needs. Camcorders are one of such products out of these electronics which often and then confuse many of you for its exact usability. You may have frequently heard about this product and are supposed to be the best option for avid photographers or those who have special liking for shooting images and store them for further usages.

Basically the word camcorder has been derived by the combination of two different words i.e., camera and recorder which works for the both purposes at the same time. This device helps you record audio as well as video images and saves it in its storage on your desire.

Initially, camcorders worked on analog video tapes and were used by the media persons in the reporting of story or other events. But the inconveniences with them was that their bigger size and heavy weight. Since technological advancement has brought comforts every where, camcorders also got renewed form and it is now before you in quite slim form as digital camcorders. By the starting of 1990s they are available quite small size and are so convenient that you can carry away anywhere easily. Perhaps only this advancement enhanced the usability of camcorders and what laid for the flooding of these devices in the market.

For you easier get together with this device, the major constituent of a camcorders can be divided into three categories i.e., the lens of the camera, the imager and the recorder.

Camcorder’s gateway is its Lens. The lens is the path that enables you to see the object or images and make the right adjustment to capture them in your device. To help you adjusts the images there are some parts like aperture (that allows one to control and adjust the light), the zoom function (that is used to adjust the field-view area covered by the lens), and the shutter speed (that helps capture any form of continuous motion) are given for your ease. .

The image is that constituent of a camcorder which is considered to be eyes and is used for keeping photosensitive devices. This is where electronic video-signal is developed from the light captured, in quite a complex electronic process.

The recorder provides a number of signal-processing usability to help you copy the captured and developed video signals on the desired recording mediums (like the magnetic videotapes).

Camcorders are normally backed by electricity or a rechargeable battery. So, it is essential to select the battery well while dealing for these camcorders. Often there is a chance to find a faulty one that costs you later.

You can find these camcorders with various features and so are the varieties of the models. One of the latest and modern models is the flat LCD camcorder screens. These Screens are highly flexible in rotating them in desired direction that can up to 300 degrees bendable.

Your purposes for buying these camcorders can be numerous. Whether you are a professional journalist in electronic media, an avid photographers or a passionate shooter for amazing footage all you can find your solution with this device in best way.

The major essential information is the prices what you wish to see first everywhere. Buying camcorders can cost you differently depending upon the models or features you need there. Though, today the market is a buyers market, you never have to bother for the prices much. The highly competitive market is just enabling to producer your camcorders on quite feasible prices. The online is the best way to find these devices, as here you get a change to compare the prices easily and moreover comes to know for any mega discount option in a second.