How a Camera Stabilizer Works

Unless you get to learn about how a camera stabilizer works, chances are high that you will not find a proper solution to help you solve the problem of image shaking at the time of shooting a picture. Field lenses have traditionally been about zoom ratio and focal length extension. With new advancements in camera technology, the length of the telephoto lens became much too long, which then meant that even a very slight amount of operator movement or wind would make the image shake and this would cause a reduction in viewing pleasure. However, a camera stabilizer helps to address just such problems. It is therefore a good idea to find out a little bit more about these stabilizers and how they work.

Image Plane


Ideally, a camera stabilizer must be able to shift a lens group in a parallel way to the plane of the image. As the lens moves, rays of light from the subject are going to bend relative to an optical axis and this will result in the image blurring on account of deflection of the rays of light. The solution lies in shifting the lens group on a perpendicular plane to the optical axis. This will counter the shaking of the image and the rays of light will reach the image plane in a steadier manner.

Downward Movement


If the movement is in the downward direction, there is need to compensate for this. Such a movement will cause the image center to also move downward on the plane of the image. This is where the camera stabilizer comes into action as it can counteract the refracted light rays. In doing so, it will once again center the image by ensuring that its center remains in its proper position.

Sensors


The good news is that a camera stabilizer is able to handle shaking movements in both horizontal and vertical direction. This ensures that any shaking of the image will be compensated. To counteract both vertical as well as horizontal movement, there are special kinds of sensors used which can compensate for yaw as well as pitch and these sensors will be used to detect movement in the lens.

When these sensors detect the angle as well as speed of movement, they will transmit this information to a very fast microcomputer which will then take care of converting the detection signals which will become drive signals that will move the lens group. As the lens group receives the drive signals, it will cause the actuator of the lens group to move the lens group sufficiently to ensure that there is a counteracting movement that helps to keep the picture stable.

Anti Shake Technology


There is another option available as well in so far as stabilizing of images goes. This option is known as anti-shake technology in which the ISO will be increased sufficiently to ensure that a high enough shutter speed is achieved to prevent the camera’s movement.

The bottom line in so far as understanding how camera stabilizers work is that each different manufacturer has their own solution. This in turn means that they use proprietary designs which are known to them alone.