"Keystone correction can be useful, but it does introduce a certain amount of degradation and distortion into the picture quality. Lens shift doesn't do that, so it's usually the better solution if you can use it."
So they didn't tell you it's inferior to lens shift. What else didn't they tell you?
Maybe the fact that most of these have no repair system in place?
I'm going to buy a LED smart projector from XGIMI. Google says that XGIMI is a Chinese company and just finished their crowdfunding on Indiegogo. That's all I know.
I visited their official site and they stated that their product has function of both ±30 horizontal and vertical keystone correction.
To be honest, I don't really trust their descriptions, especially language translation misunderstanding might happen.
Also, keystone correction is one of the most important functions that I value.
So would any software expertise help me to see whether can smart projector has this function?
Or did anyone buy their Z4 Aurora?
Here's their site: http://www.xgimi.com
Thanks a lot!

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