On January 31, 2019 at 12:46, Ernie Gilman said...
...opaque tape could be used in front of the sides of the lens to blank those areas... will this result in a sharp edge or a fuzzy edge?
The projector comes down out of the ceiling on a lift. There's about two inches of space in front of the lens in which to put any masking. There is absolutely no other place in the light path to put any kind of masking.
The space outside the image can't be masked because that's the wall that's supposed to give no hint that anything is or might be projected onto it.
