Retra Macro Rings @olympusbody These controls are clearly labeled

These controls are clearly labeled by laser engraving on the back of the housing that never fades or falls off

All components are designed for underwater use offering superior durability and corrosion resistant characteristic

Beam angle without a diffuser is 105º x95º which increase to circular 110º with supplied -0

Exclusively developed for INON strobe based on its flash protocol to optimize its performance for underwater use

Retra Macro Rings @olympusbody These controls are clearly labeledThe package includes two stackable rings which reduce the angle of light for "Macro" and "Super Macro" images. The larger diameter Macro ring is mounted into the Reduction Ring and locks via o ring friction. The smaller diameter Super Macro ring is mounted into the Macro ring and locks via o ring friction. Compatibility: Macro rings work only in combination with the Reduction Ring. The Reduction Ring can be purchased separately.