The adventure of buying something you can not always be so simple. It would be better detect a need and go to meet it, plain and simple. But in this world the connection between need and satisfaction is not so immediate. The options are many and doubts are plunging us into a strange sort of distress. Would you have gone? Here you will know how to choose projector that meets your requirements.

There are some points that must be taken into account to make a good buy. The first one is why need a projector? The possibilities are : professional reasons, academic reasons or leisure reasons means using it as a gaming projector. The first two have a primary element to consider, namely the size. If this is a projector that will have to constantly running and personal use, as it is best to start discarding all those hazy. They sacrifice some advantages, but also save a lot of trouble. For those who want to mount a kind of home theater room this may not be so problematic, unless the space that you describe is very low.

But beyond use, what you should consider? Simple: room size, screen size, the distance that is projected lighting space and the number of people expected to enjoy the function or presentation. Here are some technical specifications to consider:

Nobody wants a projector that does not provide a good image. The problem is to determine what a good image means in each case. Hence the coordinates of use and space are very important to make decisions. Standard resolution options are:

800 x 600 pixels

1024 x 768 pixels

1280 x 800 pixels

1400 x 1050 pixels

1600 x 1280 pixels

1920 x 1200 pixels

1920 x 1080 pixels (HD 16: 9)

This really is a key element in a projector and the space in which we intend to use it must be taken into account. The fact that you are interested in the lumen , which is the unit of measurement of light, but also you can be found as ANSI lumen. the more natural light in space have more lumens need in our projector. The size of the room also affects because a larger more power is required . For screens and small distances in a space where we have control of lighting 1600 lumens it is more than enough. For larger spaces one recommended minimum of 2000 lumens depending on the lighting conditions of the room.

The contrast is a ratio that measures the black and white image . The larger the ratio will be blacker blacks and whiter whites. Depending on the quality you might look for a ratio of 500: 1 is sufficient (for presentations, for example). Now if you have in mind a home theater you should look for a minimum contrast of 1500: 1 and note that darken the space will be fundamental.

Other technical data is on the technology used for projection. The options are two:

LCD ( Liquid Crystal Display ) and DLP ( Digital Light Processing ). The first is older and occupies a little more space, but achieves a very good color intensity. The second, is cheaper and has in contrast its greatest strength. Now, once valued other aspects, the budget and I should have pulled a couple of options where maybe choose between the two technology will no longer be necessary. But if you still hold fast the dilemma you have to decide if you like to appreciate the color of things or if you prefer an image where the contrast is very clear .

The last element to consider is the surface where they like projection. But the material thereof will be pending size. Depending of it is how we can calculate the distance that should the projector to get good results. As a guidance (each brand has its specific recommendations) it can be considered that the distance between the projector and the screen is double the horizontal latter. Thus, if the screen measures 1.5 meters wide, the distance between it and the projector would be 3 meters. This means that the larger the screen distance need, so you have to think more light output. It is a guidance , but it gives you a clear idea of the space you need.