How To Choose The Right Projector
Projectors are popular and effective presentation tools for classroom and business, church and community groups and home entertainment use. According to use and audience size, choose the right projector. The 2 types of projectors you will most likely consider purchasing are LCD and DLP projector
Weight will be a factor if you will transport the projector frequently. Weight will not be as important if you buy a projector for fixed installation. Portable DLP projectors are lighter than portable LCD projectors.
Resolution is a major factor. Projectors for viewing videos in a large room or auditorium, for example, will require a higher resolution than projectors used for PowerPoint presentations in an office. You need to choose a projector with a high enough resolution for its most frequent use. A resolution of 800 x 600P is generally adequate for basic PowerPoint presentations in an office or conference room. 1024 x 768 or higher allows for more detail and 1280 x 1024 for an even higher quality image.
Brightness is important elements of image quality. Projector brightness is measured in lumens. Lumens range from 500 to 1,000 for small, dark rooms to more than 2,000 lumens for large, brightly lit rooms. Purchase a projector that is rated for the most brightly-lit uses you anticipate. Additionally, the larger your screen size, the more brightness you will need.
In general, follow these guidelines:
0-1,000 lumens: Very dark rooms with small screens.
1,000-2,000 lumens: Dark or dim rooms with medium-sized screens.
2,000-3,000 lumens: Slightly ambiently lit rooms, any size of the screen.
3,000 lumens: More brightly lit room.
4. Contrast ratio
A contrast ratio is a number that tells you how big the gap is between your brights and darks on the projected image. So, a contrast ratio of 2000:1 means the whites are 2000 times brighter than the darks.
The higher the contrast ratio, the more rich the image detail. This is especially important if your room will have any ambient light in it, as you need your contrast to stand up to its potentially color-washing effects
Aspect ratio tells you the shape of the image. It compares width to height, so you know that 16:9 (a common aspect ratio in projectors) is going to be nearly twice as long as it is high. Movies and games are usually best displayed at 16:9 or 4:3.