Keystone Correction

What is Keystone Correction?

Keystone correction is a feature found in many projectors that allows for the adjustment of an image's shape in order to correct distortion caused by the projector being angled or tilted relative to the screen or projection surface.

When a projector is placed at an angle or tilted up or down, the resulting image can appear distorted, with a trapezoidal or "keystone" shape. Keystone correction allows for the adjustment of the image to correct this distortion and produce a more rectangular shape. There are two types of keystone correction: vertical and horizontal. Vertical keystone correction adjusts the height of the image, while horizontal keystone correction adjusts the width. Many projectors offer both types of keystone correction and some also have automatic keystone correction, which can detect and correct the distortion automatically. While keystone correction can be a useful feature for correcting image distortion, it should be noted that it can also decrease the overall image quality and resolution. Therefore, it is generally recommended to avoid using keystone correction if possible and instead position the projector directly in front of the screen or projection surface to produce the most optimal image. Overall, keystone correction is a useful feature for correcting image distortion caused by angled or tilted projectors, but it is important to use it sparingly and position the projector properly whenever possible to produce the best image quality.

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Keystone Correction

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Keystone Correction

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