It would help to know the projector model. You should not be using keystone correction, but instead level the projector and ensure that the top edge of the image is centred on the projector lens and is the correct height for the projector's image offset.Hello everyone. Apologies in advance for the English I use Google Dictionary. I bought a dlp projector for close to $ 1,000. I have a particular interest that I think is a problem and I wanted to consult with you. In the meantime I prefer not to expose the brand itself because I do not want to give it a bad name. The projector has an automatic shape correction and there is a manual correction of 4 corners. The automatic repair only works when the projector is placed on a table (i.e. not hanging upside down) and it does not align well. When the projector is hung from the ceiling it is hung upside down and this function does not work at all. The manual repair works. The problem is that when the projector is placed or hung upright and balanced, the screen height is not the same on both sides. On one side I measured 119 cm, while on the other side the height is 116. The points of shape correction are all set out to the end. My question is is it ok that the image is not straight in the default mode. That is, the correction is intended to align the shape when the projector is not positioned straight, and should not compensate for the image not being straight in normal mode. Seemingly this is not a problem, I can slightly reduce one side in a manual correction, the problem in this situation is that when there is a dark image, the curved shape is the one shown. This is because even when I narrow the view, there is still some light flowing in the original original form, which as mentioned is the one that is crooked. The seller does not really understand the problem. I checked pictures of other projectors and saw that it was supposed to be straight. What do you think about this situation?
Weird. Sounds like you're beyond the focal plane or have the projector making too large of an image maybe.Thanks for the comment friends. My projector is not on this list. It's a Chinese projector. Is a relatively new but high quality brand. However, this is not a problem of how to position the projector or how to set it to see a straight image. Two other problems - the first is that when the projector is placed balanced, and the manual correction is directed outwards to the maximum extent, the screen is asymmetrical. And the second problem is that with manual or automatic repair still light leaks in the curve form.
CorrectFriend, thanks for your response. I'm not sure I understood what I needed to check about what you said. If I look at a simple thing - the projector is balanced, the walls are straight, if the space between the display and the ceiling is the same on both sides, then even down it should be balanced, right?
But the projector itself isn't perfectly perpendicular. I think everyone understands you're saying it's "balanced" but the image it's shooting says it's not.It is projected on a wall that is completely straight.