How to Calculate a Custom Screen Size
Use the following formulas to calculate a custom size. The formulas will assist you in finding the viewing area only.
|
NTSC (1.33) |
HDTV (1.78) |
Letterbox (1.85) |
SXGA (1.25) |
|
Video Format |
Video Format |
Video Format |
Video Format |
|
Diagonal/1.667 = Height |
Diagonal x 0.49091 = Height |
Diagonal x 0.4762 = Height |
Diagonal x 0.625 = Height |
|
Height x 1.33 = Width |
Diagonal x 0.87247 = Width |
Diagonal x 0.88 = Width |
Diagonal x 0.78125 = Width |
|
Width/1.33 = Height |
Height x 2.0395 = Diagonal |
Height x 2.10 = Diagonal |
Height x 1.60 = Diagonal |
|
Height x 1.667 = Diagonal |
Width x 1.14585 = Diagonal |
Width x 1.135 = Diagonal |
Width x 1.28 = Diagonal |
|
|
Height x 1.78 = Width |
Height x 1.85 = Width |
Height x 1.25 = Width |
|
|
Width x 0.561837 = Height |
Width x 0.5405 = Height |
Width x 0.80 = Height |
Screen Borders and Drop
Black masking borders are standard on most 3Victor front projection screens at no extra charge. Borders enhance the perceived brightness of an image on a screen. The human eye perceives the image to have more contrast and a sharper picture with brighter colors. Borders also allow the projected image to "bleed-off" the screen for professional appearing presentations.
Drop is also available on most 3Victor wall, ceiling and electric screens. Drop is extra fabric added to the top or bottom of the screen to adjust the screen surface to within normal viewing heights. Drop can be specified in either black or white. |
