Update: Projection Screens
If you are tempted to use a separate lens in front of your projector to get a 2.35:1 image, there are lenses available to do that without having to curve the screen to keep the image in focus.
We are suggesting the screen be made to do the best job it can in image quality and the projector and environment be fixed as necessary to take their part in delivering a high-quality image. For both audio and visual considerations the screen needs to be flat and have reflectivity essentially equal in all directions.
The other improvement that has come in the Da-Lite Affinity series screen is in the surface itself. There is essentially no visibility of the surface of the screen in the image. This means that local areas of the surface have to be good as well as being uniform over the entire surface of the screen. What we get from this screen is a far greater ability to display fine resolution; the screen surface doesn't interfere with the detail. It also helps when there are large light differences in that detail, as in showing the fabric of a fine tweed jacket. Areas from the light part of the tweed don't spill into the dark parts of the pattern.
Where do these screens fall in helping make any projector look better? In a good viewing environment, the uniformity of every image will improve when using this series of screens. They will also better reflect the detail capability of the projector.
When it comes to image resolution, not all projectors are created equal. Some do a better job with image quality than others and the better projectors will look even better with these screens. Some projectors, and dare we go all of the way back to some of the standard-definition CRT devices, don't have the resolution that could take advantage of what these screens can reflect. It's part of the reason we haven't objected to other screens in the past. Their surface was far above the capability of the projector so it wasn't as much as a factor in the image.