1. Cut the middle of the body cap.
2. Take the filter and remove the glass. Be careful as to not cut your finger when removing the glass.
3. Join the body cap and filter ring in such a way they both don’t face each other. Align them carefully with a little super glue.
4. As you have used only very little super glue, you may re-align it if you feel the alignment is not proper. When you feel you got the required alignment, apply more amount of super glue all along.
5. Wait for the glue to dry up. It might take about 3 to 5 minutes.
6. Apply epoxy glue in the internal seam and allow it to dry. Epoxy glue takes a minimum of 45 minutes to 1 hour to dry up. (Ref: Fig 2 – DIY Reverse Macro Ring)
Image Source : Wired
7. Fit this to the camera now.
Hurray! Your DIY Reverse Macro ring is ready and you can shoot excellent shots now.