Following my "teaser" post, I have to show you what I got:
A little distortion is already evident.
This is with a polarized filter. It is clearly visible.
The bottom is perfectly straight, but the top of the image has a little "bow" to it.
These are the focus test on a piece of A4 paper. both are focused, but the projector is too bright for the camera and the edges are bleeding. There is also a little aberration visible on top, otherwise a descent result.
Measurements of the image will follow with the different Macro Lenses.
Hope your build is going better than mine!