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Archive for the ‘Optical Image Stabilization in Digital Photography’ Category

In this article we talk about the world of digital cameras, optical image stabilization. This technology has existed since 1995 was first introduced, but it is only recently the way in which amateur photographers market lenses and cameras.

Stabilization Lens – Lens stabilization is a technology that in some camera manufacturers lenses, where the image is being stabilized by varying the optical path to the sensor. Currently the two major companies used the longest lens stabilization of its Canon and Nikon. Canon calls its image stabilization technology (IS), while Nikon calls it Vibration Reduction (VR).

Lens stabilization was never intended to prevent blurring of the subject – only a few minutes shaking hands with the photographer, to compensate for a lens, but some lenses now half pan or active mode for these conditions.

A general rule-of-thumb with lens stabilization, can you at least a two-stop improvement over a non-stabilized lens expect to get. For example, if you are using a 100 mm lens, you would not normally try to get an exposure time of less than the reciprocal of the lens or 1/125th second deployment.

With stabilization lens, you can expect that up to two stops down, or 1/30th second. During the stabilized lenses for the two majors in many respects they are different.

Comparison – In a comparison test between the Nikon and Canon lens stabilization, the Canon lens finished faster and quieter, while the Nikon lens smaller and lighter. Both had the same maximum aperture, focal length and approximately the same in principle the same price. But it is still not finished.

Canon IS lenses have two modes, Mode 1 and Mode 2 1 mode for general photography, where the lenses, thus driving for shakes along both the vertical and horizontal axis to compensate. Mode 2 is used for panning, and disabled when it is used, image stabilization in the horizontal direction. The mode switch is a small ribbed slide switch on the lens.

On the other hand, recognizes Nikon’s Vibration Reduction system, an equal movement on the horizontal axis, it is interpreted as panning and pulls out his balancing engines accordingly. It does not need or use a switch to a mode, the Nikon lens is smarter in this respect.

How it works – both Canon and Nikon, the same basic technology. Both use to move two shake-detection sensors to the lens to detect – a yaw and pitch. The two sensors measure both the angle and speed of movement and sends information to a high-speed processor in the lens.

The processor interprets the detection signals, converts these signals to control signals tells the group to counteract the lens path to shaking, whereby a stable image.

Camera Stabilization – Some companies, such as Konica Minolta, Pentax and Olympus stabilization built into the camera body itself and not the lens.This by moving the image sensor to counteract the movement. Although this method works well with shorter focal lengths, it is not good, because the sensor can not move enough to counteract a movement is detected.

What does the future – The big two in this area are responding to what Nikon and Canon both faster and work optical stabilization into a wider range of lenses. In the past, optical stabilization, or built into a lens or camera is not working properly at slow shutter speeds. Recently some new developments in technology resulted in lenses work better at lower speeds. As the technology is cheaper to produce, the company operates both on the development of optical stabilization in their lenses less expensive and I am one day in the not too distant future, it spread as far as auto-focus is now.

Summary – There are several advantages to using optical stabilization:

This is an important feature when attempting to certain buildings that do not allow to take pictures of tripods or flash photography.

- One is a photographer can react more quickly by not having a camera on a tripod to shoot at shutter speeds of more moderate.

- Two, the photographer, in many cases no more lugging around a tripod, to relieve it up.

- Three, it’s easier than ever before, bright and sharp images with the hand holding a camera system, which is a kind of optical stabilization.

The latter is important when attempting to certain buildings that do not allow that tripods or flash photography, photo.

If you are considering a purchase or an upgrade, or look into purchasing a lens or a camera with optical stabilization. Their slow-shutter imaging with this new technology.