One of the most common unknowns that arise when we start in the world of domestic projection is related to the need to have to buy and install a screen conventional. If we listen to the seller of the projector, they will tell us that yes, it is essential to have a good screen to be able to enjoy the experience to the fullest.
However, if we dedicate ourselves to searching a little through Internet forums, including YouTube videos, we can see that there are opinions for all tastes and many people who recommend using other types of surfaces such as wall, including own fabrics, sheets, curtains, etc. Who has the reason?
Well, in fact, both are partly right, since the projector will work on practically any surface in which we use it, although will not do it optimally nor will it give us the highest image quality depending on its qualities.
The sheets are better left for the summer movies
The first thing that occurred to me when I bought a projector years ago to test that it was working correctly and since the screen had not yet reached me was to use some White sheets in the classroom. The thing worked but only half, since the low density of the fabric let through much of the light through it losing contrast and much of the light power.
That is why official projection screens are completely opaque, that is, they do not allow light to pass through but are designed to reflect all that is possible. The sheets and most of the fabrics that we have at home are not a good option if we want to get the most out of our projector.
Neither the curtains, blinds and the like, since apart from being partly translucent, they will have textures and / or colors or folds that will deteriorate the image quality. You may find a specific model that has higher quality than usual and looks a lot like an “official” screen, although it will probably never allow the projector to perform at 100%. They can get us out of a tight spot, but if we want to get the most out of our new team better not use them.
The wall can help you, but not always
The other great trend that you will see on the Internet is that of who recommends directly use the wall as a medium on which to project. Of course it is much more solid than a sheet and we will not lose light through it, but it also does not work to use any wall that we find ourselves without prior preparation.
We need it to be smooth, without defects, textures, gotelé or similar, and of course it must be uniformly painted a shade of white or gray. We have previously commented on some formulas to find the ideal tonality, having the advantage that if we don’t like it, we can paint over it again.
However, painting the wall to use it with the projector is not as simple as if we do it to decorate the living room. Is required leave no trace of the roller or brush used (better use a gun if we can) and give him a very uniform finish. Otherwise the light will be reflected unevenly and we will have spots of tonality in the image or bands that will worsen the perceived quality.
Another point against using the wall as a screen is that will worsen the acoustics of the room. Having several square meters of smooth surface will make the sound reverberate more than if we have a fabric screen capable of absorbing and / or diffusing the sound wave, so we must think about it if the rest of the room does not have good insulation.
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