7. What's the Matte White?
Matte White
The most versatile and uniform screen surface for front projection when ambient light is controllable. It enables unlimited viewing angles and perfect uniformity while giving precise definition and reproduction of color or black and white. Screen surface is washable with mild soap and water, flame retardant and mildew resistant. Viewing Angle: 60掳 Gain: 1.0


8. Selecting the Right Screen
Four Steps to Selecting the Right Screen

1. Determine the optimum screen size based on room dimensions, planned audience seating size and arrangement. The rule of thumb is to fit the screen to the audience - not to the projector. :
Snowhite recommends the following formula for determining screen size for commercial and educational applications.
Screen height should be approximately equal to 1/6 the distance from the screen to the last row of seats, allowing text to be read and detail to be seen in the projected image. Ideally, the first row of seats should be approximately two screen heights away.
The bottom of the screen should be a minimum of 4 feet above the audience floor, allowing those seated toward the rear of the audience to see the screen. This may require additional screen "drop" for ceiling hung screens.
Snowhite recommends the following formula for determining screen size for home theater applications:
Screen height should be approximately equal to 1/4 the distance from the screen to the last row of seats. Ideally, the first row of seats should be approximately two screen heights away.
The bottom of the screen should be a minimum of 2 feet above the audience floor. This may require additional screen "drop" for ceiling hung screens.

2.Select the appropriate format for your projection application. Common formats are as follows:

Common Applications	Aspect RatioWidth/Height
NTSC Video	1.33:1
PAL Video	1.33:1
Wide Format	1.60:1
HDTV Video	1.78:1
Letterbox Video	1.85:1
35 MM Filmstrip	1.32:1
2x2 Standard 35MM Double-Frame Slides	1.50:1
Super XGA Computer	1.25:1
Cinemascope	2.35:1

3.Choose the screen surface that best suits your projection and viewing requirements. For your convenience, links for front and rear surfaces can be found at the top of this page. If the screen will be used for multiple projection methods, choose the screen surface that meets the requirements of the lesser performing projection method.

4.Pick the type of screen that best suits your particular needs. For example, choose from front projection screens in either portable, wall or ceiling mounted models in either manual or electric versions or rear projection screens. Generally, if your projection application is permanent, then wall and ceiling screens are your best choice. If, however, you find your needs require moving the screen to different locations then a portable screen is a better alternative.