(05-02-2022, 12:16 PM)Brightcolours Wrote: I tried something: window about 3.5 meters from the wall, the window frame projection gets to be sharp with the back of the lens about 20cm from the wall. Of course, the lens would be designed for more close up subjects, and the distance to the image plane would be larger.
Hmmm ... some sort of projection or scanning lens maybe .... do you see yourself using it ....... if so what for ???