The file 'Lens Adapter For Ring Lamp 3D Printer Model' is (scad,stl) file type, size is 19.2KB.
This is a lens adapter for the Ring Lamp for macro photography (http://www.thingiverse.com/thing:480042)
You can customize the adapter to fit lens up to about 65mm diameter.
ringlamp_lensadapter.scad | 1.4KB | |
ringlamp_lensadapter.stl | 291.4KB |