Slide and negative copier attachment

A slide/negative copier attachment for the Panasonic Lumix G 30mm f/2.8 Macro lens which I'm using to digitise old images. It avoids the tedium of setting up and levelling a tripod etc. [Update Jan 2021: added film strip holder.]

The device comprises three parts:

* Flange - with 46 mm thread to fit lens
* Body tube - clips on to the flange. Can be rotated freely for precise alignment.
* Holder - choice of three types, clips on to body tube
- Slide holder standard (for cardboard mounts)
- Slide holder fat (for plastic mounts up to 3mm thick)
- Film strip holder

It's not essential, but I would recommend opaque filament if possible (my latest print uses black filament which is completely opaque and produces nice black borders).

Layer height is non-critical, except for the flange and film strip holder which should be printed with minimum layer height (I used 0.12 mm). Use 100% infill for all parts.

I'm using a small LED panel as light source, but diffuse sky