Follow this step-by-step article, and you won’t go wrong.
1 Low-cost projectors normally make two main sacrifices. The brightness,
which is measured in ANSI lumens, will be relatively low, and the native
resolution will be limited to 800×600. Neither one of these will be serious
drawbacks providing you lower your room lights, draw the blinds, and there
isn’t too much detail in your slides. Home cinemas definitely do not
require anything more. Movie enthusiasts are more likely to be concerned
with the lamp life and replacement cost.
2 Image quality is obviously important but very hard to test based on
specifications. A high contrast (500:1 or above) ratio adds depth to the
picture and is one substantial benefit of projectors based on digital light
processing (DLT), as opposed to the older LCD technology. Do keep in mind
though; the optics and color balance cannot be assessed without consulting
3 Where you will be using your projector also needs to be put into question.
Size and weight are obviously very important if you’ll be moving the piece
around a lot. If portability is a factor, aim for a projector that is less
than 3kg. Small rooms will demand a quiet (below 33dB) projector with a
flexible throw distance – or how close or far away the screen must be. Most
projectors can rotate or mirror their image to cope with ceiling mounting
or rear projection.
4 Make sure the projector you are looking at covers all the signals you
might want to feed it with. Common video formats are supported by almost
all projectors, but high-resolution VGA signals aren’t. High quality
pictures will only display at their best only on pricier projectors, with a
1,024×768 native resolution.
5 Top-of-the-range projectors have 2,000 ANSI lumens brightness or more to
overpower brightly lit rooms. They also come with a handful of useful
features that make presentations look and sound slicker, as well as making
it easier for the presenter. Anti-theft features may also be something
worth looking into.
6 After sales Warranty and support is definitely a must, especially for the
heavier users. Make sure you have access to bulb replacements (or
Recommended Minimum Specs-
Native Resolution: 800×600 Brightness: 1,100 ANSI Lumens Contrast Ration: 500:1 Lamp Life: 2,000 hours Check: Weight, throw distance and noise.
This article was written by Timothy Wong, a technology blogger. Visit his
website at: [http://www.timw.com]
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