It offers flexibility in projector placement and easy setup, especially with automatic keystone correction.
Achieving the perfectprojectorimage can be a challenge.
That’s where keystone correction comes in, a feature that ensures your image is displayed correctly.
Josh Hendrickson / How-To Geek
In other words, the projector’s lens isn’t squared-up with the projection surface.
What Is Keystone Correction?
Keystone correction is a feature found in many projectors that corrects the trapezoidal distortion because of non-perpendicular projection.
Keystone Correction in Projectors
Most modern projectors come with keystone correction built-in.
It can be either manual or automatic, depending on the model.
Manual keystone correction requires you to adjust the parameters until the image appears correctly.
Keystone Correction vs.
Lens Shift
While keystone correction and lens shift both address image distortion, they work differently.
Related:Do You Need a Projector Screen In Your Home Theater?
However, such projectors are mechanically more complex and therefore cost more.
So in most cases, digital keystone correction is the best mix of quality and price.
That way, little or no keystone correction is necessary.
However, it’s important to know the limitations and potential impact on image quality.
