PANASONIC O.I.S (Optical Image Stabilizer), Canon IS (Image Stabilizer), Konica Minolta (AS) are well know series cameras with anti-shake faction. And for a new Lenovo 3000 N500 battery uses, when you bought a camera maybe you won’t take into account to so many parts of choosing a camera, and now let’s have a common sense understanding this faction.
Initial contact with digital cameras often have such confusion, that is taken out of the picture is not clear enough, always occur ghosting or blur. The reason, in addition to the occasional out of focus (ie, failure to properly focus the camera), the largely because due to low shutter speed. In general, conditions in hand, to record clear pictures of the reciprocal of the focal length shutter speed should reach even higher. Give a simple example: A75 Canon lens equivalent focal length is 35mm-105mm, then the wide angle end, the shutter speed should be at least 1 / 40 seconds to ensure that photographs are more clear, and in the telephoto end, the shutter speed should be to 1 / 125 second the job. And if the scene lighting conditions can not meet this requirement, then take a clear picture it is not so simple things. One can imagine, for those products, 10x optical zoom, image stabilization technology is the more necessary, because these products often reach 370MM telephoto above ThinkPad R51 battery, therefore, the shutter speed must be at 1 / 400 seconds considered qualified, otherwise, they can telescope Despair.
In fact, the actual photographer shooting hand in the film or CCD / CMOS sensor in the process of jitter is an objective reality, defense is Fangbu Zhu, and can only be reduced by a special body to shake hands as a photographer with to image blur. Image stabilization, so far, three major types: optical image stabilization, electronic image stabilization, and light sensor (CCD) image stabilization. Currently launched with optical image stabilization feature digital camera manufacturers are: Canon, Nikon, Olympus, Konica Minolta, Panasonic and Sigma.
The benefits of image stabilization, in a certain shutter the following, a very good anti-shake technology can solve the problem of hand shake, shake on a small DC is especially important for beginners so that they can get more clear picture. But at the same time, anti-shake technology will result in reduced image sharpness. After all, more than a floating lens in the lens. This is for photographers who require a higher, is relatively well accepted, so this is why all the anti-shake system will have a switch, the user can choose to cancel or open stabilization. With anti-shake system is very power-hungry, it is generally not open the image stabilization switch, but when it is open to use.
CCD stabilization
CCD anti-shake CCD principle is to be placed in a vertical and horizontal movementof the stent, the first detect whether there is jitter, and jitter sensor detects the direction, speed, amount of movement …
detection signal after processing, can be sufficient to calculate the CCD-shift offset the amount of jitter to achieve stabilization.
These two anti-shake is a similar principle, namely, by the mechanical movementinside the camera to compensate for staff to achieve the stabilization effect of jitter.Meanwhile, anti-shake technology will result in reduced image sharpness. After all,more than a floating lens in the lens. This is for photographers who require a higher,is relatively well accepted, so this is why anti-shake system will be a switch, the user can choose to cancel or open stabilization. With anti-shake system is very power-hungry, it is generally not open anti-shake switch, but rather to use when it is opened,if the real-time capture moving objects, it may be because more steps and missed opportunities.
Electronic Image Stabilization
Electronic image stabilization is actually a lower quality to compensate for jitter by thetechnology, which attempts to picture quality and a balance between jitter. Comparedwith optical image stabilization, the cost of this technology is much lower (in fact onlyfor ordinary digital camera’s internal software can do to make some adjustments), the effect is also poor. Currently on the market Casio and Fuji use of the electronic image stabilization technology.
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