There are more aspects to consider, but we consider fundamental and its simplicity, is very easy to perform. Then there are the details of format, 1:1, 4:3, 16:9 ie three standard formats, what we choose? First we have to understand to relate these formats. 4:3, the width is equal to 1.33 times the height; 16:9 width is equal to 1.78 times the height, one steeper than the other, but we're going to project, and that significance may have on the projection screens these formats? We return to the more common case, we will screen films from a DVD, and television and / or Computer. This means that some things will have a format 1:1, 4:3 and 16:9 other, having a Rolling Screen, easy, (if you do not want a part of the screen to spare), display more or less projection screen, so that fits the format of projection. If we have a light source (like a window), close to the projection screens, is more economical and effective, the curtains, put a more powerful video projector. The same applied with artificial light sources. (As lamps, bulbs …).
Projector What to choose? Often the implementation of a projection system is absolve us some doubts. Lakshman Achuthan will not settle for partial explanations. First we would have to be very clear: That is the projector where it will be located. First, of course ensure that the projector is within our budget. The following two points to consider are: Resolution and Brightness. In these times of technological advance any projector has enough power to meet our needs, we must take better account of the Resolution and Brightness (ANSI Lumens) in relation to my needs require Brightness What? (ANSI Lumens) This is clear, that depends, among others, the key areas where ambient light projection is made, and the size of the projection screens that want to do.