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Have you been suffering with the right projector angle to fix your projected image on screen? Most projectors accompany center and zoom controls to assist with extending the right size and sharpness. You can otherwise uphold the projector’s adjustment feet or move the point of the roof mount to ensure the picture falls where it ought to. If not then you can also use the lens shift or keystone correction to balance the image display. While both can address a defective projection, besides, can be used for multiple purposes.

Keystone occurs at whatever point your projection looks less rectangular or square when it comes to display when you have no choice other than projecting an image at a strange point. Although keystone corrections permit you to address this twisting using both digital and electronic means.


Lens shift and keystone corrections are designed to permit you to do changes  to the shape and area of the extended image without having to migrate the projector. Most video projectors incorporate keystone adjustment, whereas the cheapest models don’t come with a lens shift option.

Lens shift mechanism allows you to truly move the projector’s lens up, down, side-to-side, and in a diagonal direction, which means that you don’t have to move the projector to get a perfect image size. Keystone correction or commonly known as a Digital Keystone Correction) carefully controls the picture before it goes through the viewpoint. It is expected for circumstances where the projector isn’t opposite to the screen, bringing about a lopsided, trapezoidal picture.



  • You can easily move the lens in all the directions so that the image can be projected on screen without much hassle.
  • You can fix any image that is not fixed or uneven.


  • With keystone one can alter the projected image via digitally. Which means that you don’t have to move your device to get a perfect image.
  • It can fix the wide and narrow images on screen sides.


Lens allows you to adjust the issues in your projected image via moving the lens. If your projector has a lens shift functionality then you can easily fix the issue without having much hassle. With the lens assembly option you can move it up, down, side-to-side without moving the entire projector.

Most projectors that feature lens shift permit you to move the focal point with an actual handle or dial. Some very good quality projectors have mechanized parts that permit you to move the focal point with a controller. The element is by and large saved for pricier video projectors, yet it could merit the speculation in the event that you expect a troublesome setup process.


  • With a small shift you will be able to physically move the entire projected image.
  • When it comes to pricier projectors, they feature a remote control lens shift.


  • You will only find such features in expensive projectors.

Keystone correction features the ability to make distorted images into an even, and rectangular picture. It is accessed through the projector’s on-screen menu or a devoted control button on the projector or controller. While digital keystone adjustment innovation takes into account both vertical and flat image control, not all projectors incorporate the two choices.

Since keystone correction can be achieved using a digital process, it utilizes pressure and scaling to control the state of the projected picture. This can bring about curios, picture contortion, or diminished goals.


If your projector is properly aligned then you need to move the lens shift to get the desired position. If your projector is working at an odd angle that results in wide and narrow projection then you must go for keystone correction.

Both lens shift and digital keystone correction are useful, you can use them to address your image alignment issues when you install a new projector.

In case you’re looking for a projector that will be set up in an environment with placement limitations. Check whether it has lens shift or keystone correction options before you purchase it. You may likewise consider getting a standard or short-throw projector for little spaces, or a TV that is appropriate for home theaters.


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