Have a projector in your home or at your office? Do you know what keystone is? When a projector is not perpendicular to the screen or the projector screen is angled so that it leads to misalignment, it gives an effect called the keystone effect. But don’t worry! It’s not something that you can’t solve.
The keystone correction is a handy feature for those who own projectors and other electronic devices. There are many layers to it, but the salient feature is the angle of keystone correction. The following is an example of what the keystone effect may look like.
The keystone effect can be fixed by two means; manual and digital. The manual correction method requires the adjustment of the projector and the room to accommodate keystone correction. This endeavor requires the lens projector to be adjusted in either a higher or lower angle regarding a flat surface. On the other hand, digital correction digitally converts the data and scales to correct the keystone effect.
The manual method was used by old projectors. Now, digital keystone correction is already embedded in a projector, automating it and making it easier to correct. It has opened the door to numerous possibilities in projector placement.