Tips For Buying a Multimedia Projector

One the hottest pieces of computer peripheral hardware today is a
multimedia projector. You can use a multimedia projector for a multitude of
tasks, such as: presentations at conferences, board room presentations,
projecting videos on to a wall in your home to watch movies, and more.
There are a several types of multimedia projectors on the market today. The
major question is which projector you should buy? There are many brands and
four major types of multimedia projectors.

Multimedia Projector Brands and Types

There are many brands of multimedia projectors to choose from: Panasonic,
Optima, Epson, NEC, Infocus, and many more from which to choose. Multimedia
projector types include:

Digital Light Processing (DLP): has deeper black background and more

Liquid Crystal Display (LCD): better for color

TFT (Thin Film Transistor) Active Matrix: a form of LCD

HDTV home theaters: 480i, 516i, 540p, 720p, 180i, 1080p, 1080i, 1125i (i =
interlaced video and p = progressive scan)

The major consideration is the purpose of the multimedia projector and uses
in home or business; this will help you select the features you need.
Features to consider include:

Image Brightness: range 130 lumens to 6500 lumens

Desired Display Area 5 to 6 feet: 500 to 1000 lumens

Desired Display Area 8 to 10 feet: 1000 to 1500 lumens

Desired Display Area 12 to25 feet: 2000 lumens or more

Wireless: remote operation from computer

Digital Zoom: for large room projections

Keystone Correction: compensates for projectors position not being
perpendicular to the screen

Slim Size: business portability

Projector Mount: needed for permanent installations, ceiling or wall

Bulbs: typical UHP, UHE, Halide lamps, 1000 to 4000 hours, chose long life

Business Use: movie clips, animation, photos

Home Theater: LCD, HDTV, high resolution, high contrast, brightness 1000 to
2000 lumens

Resolution is the number of pixels that the projector is capable of
displaying. Projectors with greater the resolution produce a better quality
projector image because there are more pixels per square inch. A projector
with less resolution will have a grainier picture, since there are fewer
pixels per square inch. Resolution comes in a variety of selections; your
choice of resolution is based on your use of the projector.

For basic power point presentations only, you can use a low resolution
projector. If you use a lot color and videos, you will need a high
resolution projector. Projector resolution ranges from 854 x 480 to 1280 x

Contrast is the ratio between the lightest and darkest areas of a picture.
You will want to select a multimedia projector with a contrast 400:1 or
better. Contrast ranges from 350:1 to 6500:1.

Buying a Multimedia Projector

Once you have narrowed your multimedia projector choice(s) visit your local
store and check out its features:

Projector Controls: ease of use

Remote Control: ease of use

Bulb: long life, bulbs are expensive

Connections: cables for PC or MAC, DVD Player, Cable box, Satellite box

Mounting Bracket: if needed for permanent installation

Wireless: compatible with your computer

Operation: salesperson demonstrate use and watch example projection quality

Sound: is the fan noisy

Size: size does matter when it comes to portability

Weight: permanent installations are not really concerned, heavier models
are not suitable for portable uses

Carrying Case: provides protection when dragging through airports, etc.

Prices: range from less than $630 to $17000 and more

Resolution and Contrast Considerations and Features.

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David R. Wetzel, Ph.D. – Currently a FreeLance Writer, Retired University
Professor and Public School Teacher. He is an avid technology user and
researches technologies which impact everyday business, education, and
consumer applications.

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