The
adventure of buying something may not always be so simple. The best thing would
be to detect a need and go to satisfy it, that simple. But in this world, the
connection between need and satisfaction is not so immediate. The options are
many and the doubts are plunging us into a strange kind of anguish. Has it
happened to you? In this Zen corner, you will find peace those tormented by the
search for a projector.
I need a
projector. The first step clear, or at least it seems. If you have in mind a
purchase of this type accompany me to review the elements that must be taken
into account to make a good purchase. Of course, I would start by asking: why
do you need a projector? Let's consider the possibilities:
professional
reasons, academic reasons or playful reasons. The first two have a primary
element to consider, namely size. If it is a projector that will have to be
constantly moving and is for personal use, it is best to start discarding all
those foggy. Some advantages will be sacrificed, but many inconveniences will
also be saved. For those who want to set up a kind of cinema at home, this may
not be so problematic unless the space you have is very small.
But, beyond
the use, what should you take into account? Simple: size of the room, size of
the screen (especially the width), the distance to which it is projected, the
lighting of the space (particularly the one that directly affects the screen)
and the number of people expected. Enjoy the function or presentation. I
propose to use a quadrant with two axes: the use and space, that is, having
clear the type of use ( what do I want the projector for? ) And the
characteristics of the space ( where do I plan to use it? ) enter to see the
technical specifications. If you already know that you want to acquire one, you
can always buy your projector at www.proyector24.es
Resolution
Nobody wants
a projector that does not provide a good image. The problem is in determining
what good image means in each case. Hence, the coordinates of use and space are
very important to make decisions. The standard resolution options are the
following:
If you want
to enjoy a good movie at home and you only have to use the projector for this
purpose, you could think of a Full HD (depends on the budget). But if you think
about replacing the TV with a projector, it might be better for you to think of
a WXGA or SXGA. Remember that the projector lamp has an average lifetime of
2,000 hours (although there are some that last up to 5,000), so you should
always think about replacements at a convenient price or, in any case, review
very well then they promise you. Another element to decide the resolution is
what you think plugin as the source of the images because the ideal is that the
resolutions between the source and the projector coincide. Of course, if you
only think of professional or academic presentations without many graphics the
SVGA resolution is more than enough.
Brightness
This is a
key element in a projector and we must take into account the space in which we
intend to make use of it. The data that interests you is the lumen, which is
the unit of light measurement, although it can also be found as ANSI lumen. The
more natural light we have in the space, the more lumens we need in our
projector. The size of the room also affects, because larger size requires more
power. For screens and small distances in a space where we have control of 1600
lumens lighting is more than enough. For larger spaces, a minimum of 2000
lumens is recommended depending on the lighting conditions in the room.
Contrast
Contrast is
a relationship that measures blacks and whites in the image. The bigger the
relationship, the blacks will be blacker and whites whiter. Depending on the
quality sought, a 500: 1 ratio may be sufficient (for presentations, for
example). Now that if you have a home theater in mind you should look for a
minimum contrast of 1500: 1 and keep in mind that obscuring space will be
fundamental.
LCD or
DLP
Another
technical fact is in the technology used for the projection. The options are
two: LCD ( Liquid Crystal Display ) and DLP ( Digital Light Processing ). The
first is older and occupies a little more space, although it achieves a very
good intensity of color. The second, developed by Texas Instruments, is more
economical and has its greatest strength in the contrast. Now that, once the
other aspects are valued, the budget should have already thrown you into a
couple of options where maybe choosing between one and another technology will
no longer be necessary. But if you still have the dilemma, you will have to
decide if you like more appreciate the color of things or if you prefer an
image where the contrast is very clear.
Screen
and projection distance
The last of
the elements to consider is the surface where the projection is planned. More
than the material of the same must be aware of the size. Depending on it, it is
how we can calculate the distance to which the projector must be placed in
order to obtain good results. As a measure of orientation (each brand has its
specific recommendations), it can be considered that the distance between the
projector and the screen is twice the horizontal of the 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 bigger the screen, the more distance we
need, so we will have to think about more light power. It is an orientation,
but it gives you a clear idea of the space you need.
I hope that
after this you can better understand the specifications of the thousands of
options that populate the market, or that you can ask the right questions when
approaching the purchase. I have not discussed the budget here because I think
it is best to have concrete and clear options before we get discouraged (or
encouraged) completely. If you want to have an idea price can go from 200 to
1600 euros. Much depends on what your quadrant of use and space that I propose
here as guidance to decide. Finally, do not forget to check the type of
connection that the projector supports. For domestic use, an HDMI connector is
indispensable, while for professional use it is enough to be compatible with
your computer. Look at options, do accounts and compare prices. Good luck on
the trip!
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