Seek Thermal Compact 12mm ZnSE Macro Lens Holder

This is a remix of RichWebb's excellent Macro Lens holder for the Seek Thermal Compact thermal camera.

I only had the 12mm lens available instead of the bigger one used in the original, and also couldnt get the original to fit my camera (the standard Compact), so i tweaked some sizes, added the knurled grip, and set it up for the smaller lens.