What is 4D keystone correction ? | Volto Projector

May 24, 2022

what is keystone correction ?

So keystone correction it is a feature that allows you to put your projector less accurately but still can get a square image output. 

And what 4D correction can do?

That is no matter your projector have off-axis function or in positions  high or low,it is about you do not neeed keep it parallel to the screen, 

with 4D (4 Direction) Keystone Correction will allow you to adjust the distorted picture, making the askew image square again

What is 4D keystone correction ? | Volto Projector
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Is there any difference we can see for the difference Keystone function?

4D Keystone correction 

Four directions can be adjusted as you like

any place you can projection

Horizontal Keystone correction

The correction of the upper and lower trapezoids 

can only be projected in front of the screen

Then what is 4D keystone correction?

The ordinary keystone correction only allows users to place the projector in less accurate positions, but still need to make sure the lens is roughly parallel to the screen.

However, to make the projection get rid of the limit of placement. Volto engeneer have started their study about this early since early years,just want to bring more convence to our customer

even if projecting from the side and you can also adjust the deformed image into a better square shape,so now you can place the projector any where they like ,and can easily adjust to image correction 

  • 01
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  • 02
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    With ISO9001 & ISO14001 approved  in Zhongshan, China
  • 03
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    Equipped with more than 10 Video projector assembly lines Daily LCD video projector output 10,000pcs, Daily DLP video projector output 2,000pcs
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Advantages of Volto

1.Quality is our first consideration,Every projectors from us test at least 9 times before shipping. Projector defective rate is strictly controlled Zero.

2.We already supported many famous company like Vankyo as projector bestseller on Amazon, the well know famous TV brand Konka also do customize home theatre projector from Volto and selling very good at Japan and USA . We supply portable projectors for the Well-known audio brand KODAK  as well

3.Warm Service: keep you well informed of all production details from A to Z ,fast response to your any technical issues

4.More Than 10 Projector Production Line ,daily Video Projector Output 10,000pcs To Meet Your Fast Delivery Demand

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