here is a lens adapter for the Belair lens system of lomography to a Fuji X mount. I think I will also make a Nikon mount. besides that are no other conversions planned... but I have also made separate files for the mounting parts so if you like to go crazy and made your self a macro lens out of this go a head. or drop in on a other body mount.
there are 2 types of the adapter it self 1 is the cloudy. low contrast version. this is cause d by the smooth inside that will cause a lot of light bounce.
and the clear. this one got a texture in side and is the recommend one to use. unless your out for some artistic needs
of course make sure the print is clean so there are no dust parts or stringing Falling in to your Fuji censor /shutter blades ...
I will look later to add some example pictures
here is a link to a video I made about it
here is the link to the Nikon version
https://www.thingiverse.com/thing:4256160
The author marked this model as their own original creation. Imported from Thingiverse.