I need your help on understanding the projection distance and how that determines where you mount your projector.

Equipment List: (screen not purchased yet) - all other equipment has

Projector - PT-AE4000U

Screen - SMX 237.1 Curved (120 viewable width x 50.7 viewable height) = 130.2 diagonal - gain 1.16

Anamorphic lens - Optoma BX-AL133 with automatic sled - from what I understand, its basically a UH380. Is this correct?

Ok, the Panasonic manual states to use the following to figure the projection distance - diagonal screen size x 1.256 -0.04 = minimal projection distance and diagonal screen size x 1.899 - 0.05 = max projection distance.

Manual: http://www.panasonic.com/business/pr...4000/index.asp

So what I came up with is 130.2 diagonal screen x 1.256 -0.04 = 163.4912 inches or 13.6 ft minimal throwing distance and 130.2 diagonal screen x 1.899 - 0.05 = 247.1998 inches or 20.6 ft max throwing distance. Is this correct?

If the above calculations are correct, and utilizing the projector calculator pro and putting my projector back to the minimal distance of 13.6 ft would give me an image brightness of 15fl and fill the 130.2 inch diagonal 237.1 screen. Is this also correct and does the anamorphic lens change this formula?

Any assistance is greatly appreciated. Thanks, Dean