37mm Close-Up Lens Adapter for Acer K132/K135 projector

Disclaimer: USE IT ON YOUR OWN RISK. I am not responsible for any damage which could be caused by the usage of this item.

I have created this adapter for David SLS 3D scanning. With the close-up lens it is possible to further decrease the distance to the screen/object. The solution was tested with Acer K135i projector and 37mm close-up lens of factor ... 1x, 2x, 4x, 10x.

Measured distance to screen and screen size with/without macro lens can be found in attached image/table.