AVS Club Gold
Join Date: Nov 2002
Location: Byhalia, Mississippi. Waaaay down in the Bottoms
Mentioned: 1 Post(s)
Tagged: 1 Thread(s)
Quoted: 112 Post(s)
In looking at the first image of the blue screen dead on, the vertical uniformity of the line shown at either side of center is rock solid proof the central bow is a leading cause of your issue .For anyone to view that image and allude to that not being the case would speak of their either willfully ignoring it, or simply trying to make up some other cause to reinforce their own agenda..
Hot spotting does NOT manifest itself as a straight vertical line or such a confined area. Nor would it create such a well defined, centralized brightness as is obviously seen in the BBall images, unless the reflected light is being "Lensed" by a Convex surface. Of course the brightness will shift as you move....you changing the angle by which the light reaches you. It certainly would not bend over or around to accommodate your line of sight.....rather you would see the light shift as you go from one side of that "rise" to another....just as you would see a shadow shift when you walk past the object creating it. Your problem is diametrically the opposite of the same issues many early CRT owners faced, that led then to utilize Concave Screen surfaces...ones that brought the sides in closer to focus light at the edges toward the viewer.
You have no "uncontrollable" Mica going against you. You have screen surface irregularities and poor Projector light uniformity. Combined they both amount to an almost intractable situation.
That you chose a DIY paint that has gain and contrast enhancement abilities does accentuate your problems, but that is not to say the paint itself is a culprit. It is simply along for the ride.
To quote James T. Kirk;
"I'm laughing at the superior intellect"