By David Wetzel
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 portable
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 1024.
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 and consumer applications.
Article Source: http://EzineArticles.com/?expert=David_Wetzel
Showing posts with label Shopping Guide. Show all posts
Showing posts with label Shopping Guide. Show all posts
Friday, January 23, 2009
Thursday, January 22, 2009
Projector Buying Tips: The Best Projector Shopping Guide
By Robert Thatcher
Technology has always been known to make people’s lives better. In fact, some surveys said that 8 out of 10 people who were interviewed showed significant representation of people who were relieved to have the best technology in their lives.
One of the primary reasons why technology is deemed as life’s enhancers is because it can unleash the limits set upon the rigidity of previous inventions.
This goes to show that with the new trend of technology, people can expect a better life because it provides a hundred and one ways of making the impossible doable.
Take for example the case of projectors. Before, projectors are known to be used in movie theaters and during business presentations or seminars.
But with the continuous technological advancement and development, projectors are now known to be used even at home. This is especially true to those who want to create a home-based theater of their own.
Technically speaking, projectors work in a way that the visual aspects that are limited on the tube of a television are directly converted into a bigger screen. This is where the graphics and images are unleashed on a bigger view and where space is no longer constrained in a tube.
However, not all projectors are created equal. Therefore, projectors may vary from one model to another. So the only way to get the best item is to know how to effectively buy a good one.
Here is a list of some tips that consumers may use when buying projectors.
1. Know the available type
Basically, there are only tow types of video projectors: the LCP, or the liquid crystal projection, and the tubed. Both of them can function well as far as projection is concerned.
Also, these two kinds of projectors are unique on each sense of functionality that may influence the presentation and setting up of the item.
Each has its own advantages and disadvantages as well. So it is best to do some research regarding this matter so you would only get the best kind of projector.
2. Decide on the magnitude and weight of the projector
There are three available categories of projectors. These are the conference room projectors, ultralights, and the fixed installation projectors.
Each category has its own purpose. So it is better to know the main purpose of using the projector so that you will be able to decide on what weight and size should be bought.
3. The price
As mentioned, not all projectors are created equal, that is why, they may be priced according to the level of their functionality and the way they were manufactured.
Generally, projectors re priced between $1,300 and $9,000. Though, 75% of the available projectors in the market today greatly fall under the $3,500 to $20,000 price range.
The main factors that influence the way projectors are priced are brightness and resolution. Hence, the higher the resolution and the brighter the projector can display images, the higher the price.
4. Consider your needs
When buying projectors, it really pays when the buyer knows what he needs before going to the store. This will make the buying process a lot easier and faster, avoiding the perils of motivations made by persistent salespeople.
The bottom line is that the quality of images that people should expect is reflected upon how they buy items like this. Hence, it is important to always have the initiative to research on the things that bring about the main concept of projectors.
Robert Thatcher is a freelance publisher based in Cupertino, California. He publishes articles and reports in various ezines and provides projector resources on http://www.yourprojector.info.
Article Source: http://EzineArticles.com/?expert=Robert_Thatcher
Technology has always been known to make people’s lives better. In fact, some surveys said that 8 out of 10 people who were interviewed showed significant representation of people who were relieved to have the best technology in their lives.
One of the primary reasons why technology is deemed as life’s enhancers is because it can unleash the limits set upon the rigidity of previous inventions.
This goes to show that with the new trend of technology, people can expect a better life because it provides a hundred and one ways of making the impossible doable.
Take for example the case of projectors. Before, projectors are known to be used in movie theaters and during business presentations or seminars.
But with the continuous technological advancement and development, projectors are now known to be used even at home. This is especially true to those who want to create a home-based theater of their own.
Technically speaking, projectors work in a way that the visual aspects that are limited on the tube of a television are directly converted into a bigger screen. This is where the graphics and images are unleashed on a bigger view and where space is no longer constrained in a tube.
However, not all projectors are created equal. Therefore, projectors may vary from one model to another. So the only way to get the best item is to know how to effectively buy a good one.
Here is a list of some tips that consumers may use when buying projectors.
1. Know the available type
Basically, there are only tow types of video projectors: the LCP, or the liquid crystal projection, and the tubed. Both of them can function well as far as projection is concerned.
Also, these two kinds of projectors are unique on each sense of functionality that may influence the presentation and setting up of the item.
Each has its own advantages and disadvantages as well. So it is best to do some research regarding this matter so you would only get the best kind of projector.
2. Decide on the magnitude and weight of the projector
There are three available categories of projectors. These are the conference room projectors, ultralights, and the fixed installation projectors.
Each category has its own purpose. So it is better to know the main purpose of using the projector so that you will be able to decide on what weight and size should be bought.
3. The price
As mentioned, not all projectors are created equal, that is why, they may be priced according to the level of their functionality and the way they were manufactured.
Generally, projectors re priced between $1,300 and $9,000. Though, 75% of the available projectors in the market today greatly fall under the $3,500 to $20,000 price range.
The main factors that influence the way projectors are priced are brightness and resolution. Hence, the higher the resolution and the brighter the projector can display images, the higher the price.
4. Consider your needs
When buying projectors, it really pays when the buyer knows what he needs before going to the store. This will make the buying process a lot easier and faster, avoiding the perils of motivations made by persistent salespeople.
The bottom line is that the quality of images that people should expect is reflected upon how they buy items like this. Hence, it is important to always have the initiative to research on the things that bring about the main concept of projectors.
Robert Thatcher is a freelance publisher based in Cupertino, California. He publishes articles and reports in various ezines and provides projector resources on http://www.yourprojector.info.
Article Source: http://EzineArticles.com/?expert=Robert_Thatcher
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