How to use the converter rings
   
  The converter rings are 0.2mm of aluminum and is very easy to bend or cut in. The inner diameter of the is slightly smaller than the glass gobo. Therefor it covers all light. Use appropriate sizes see the table for which sizes that are available.
   
 
Bend the fingers out 180 degrees out pointed from the center. You could use your finger for that.
   
Place the glass gobo on the converter ring and center it carefully then bend the fingers back towards center over the glass gobo. You should use a sharp tool for that, a knife or a scalpel. Be careful so you don't scratch the gobo surface.
   
Ready to use. All the fingers are bent over the glass surface. It is not necessary to use all fingers but it is more safe to use them all.