Digital Photography - Optical Image Stabilization

In this article, we discuss the world of digital camera optical image stabilization. This technology has been around since first introduced in 1995, however, only recently made ​​its way into the amateur photographer and camera lens market.

Stabilization Lens - Lens stabilization technology used in some camera manufacturers lenses where the captured image is stabilized by the different optical path to the sensor. Right now, two large companies have used the lens stabilization longer than the Canon and Nikon. Canon calls its technology the internal stabilization (IS), while Nikon calls its Vibration Reduction (VR ).

Lens stabilization is never meant to prevent motion blur of the subject -. Just a minute shaking of the photographers hand-holding the lens, however, some lenses are now a secondary movement or active mode to compensate for those conditions

general rule-of-thumb with lens stabilization, you can expect to receive at least two-stop improvement over non-stabilized lens. For example, if you use a 100 mm lens, you would not normally try to use a shutter speed less than the reciprocal of the lens or 1/125th second.

with lens stabilization, you can expect to accept up to two stops less than or 1/30th second. While two large stabilized lenses are common in many respects, they are different.

comparison - In the comparison test between the Nikon and Canon lens stabilized Canon lens ended up being faster and quieter, while the Nikon lens was smaller and lighter in weight. Both have the same maximum aperture, about the same focal length and basically the same price. However, this did not stop there.

Canon IS lenses have two modes, Mode 1 and Mode 2nd Mode 1 is for general photography, where the lenses by compensating for camera shake float along both vertical and horizontal axes. Mode 2 is used for panned shots and when used, to exclude the image stabilization in the horizontal smjeru.Sklopkom mode is small ribbed slider switch is located on the lens barrel.

On the other hand, Nikon's Vibration Reduction system detects a smooth movement along the horizontal axis, it is interpreted as driving, and dealing with its countervailing power accordingly. It does not need or use a switch to select modes, so that the Nikon lens is smarter in this regard.

How it works - and Canon and Nikon use the same basic technology. Both use two shake-detection sensors to detect movement lenses - one for yaw and one for nagib.Dva sensors detect the angle and speed of movement and sends information to high-speed processor in the lens.

processor interprets the detection signal, converts these signals to said drive signal lens group on how to move to combat shake, thus creating a stable image.

Camera Stabilization - Some companies, such as-Konica Minolta, Pentax and Olympus build stability into the camera body instead lens.This works by moving the image sensor to control the movement. Although this method works well with shorter focal lengths, it does not work well with one more as a sensor can not move enough to fight all the detected movement.

what the future holds - a big two in this area, Nikon and Canon are working on the development of optical stabilization and a more responsive and accessible to a wider range of lenses. In the past, optical stabilization, whether built into the camera lens or body is not working well at slow shutter speeds. Recently, some new developments in technology resulted in the lens works much better slower speed. As technology becomes cheaper to produce, both companies are working on the construction of optical image stabilization to their lenses less expensive and I imagine one day in the not-too-distant future, it will be as common as auto-focus is now.

Summary - There are several advantages of using optical stabilization:

This is an important feature when trying to photograph inside some buildings that do not allow tripods or flash.

-. One photographer can be more responsive by not having to set the camera on a tripod for photography at moderate exposure

-. Two, photographer in many cases should not lug around a tripod lightning time to load

- Three, it's easier than ever to get a clear sharp image handholding the camera system that employs some kind of optical stabilization

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last feature is important when trying to photograph inside some buildings that do not allow tripods or flash.

If you are thinking about buying equipment or to upgrade, look at the purchase or the lens or camera equipped with optical stabilization. Your slow shutter speed photography will be improved by using this new technology.