FotodioX WonderPana 145 Core Unit to 186mm Filter Step-Up Ring

### From Manufacturer

Using WonderPana Ultra Wide Angle Filters with Standard Lenses - WonderPana Step Up Rings

How to Assemble a WonderPana Absolute Filter System

This Step-Up Ring from FotodioX is designed to permit the use of 186mm FotodioX filters on a FotodioX WonderPana 145 Core Unit's front filter holder. It is constructed from aluminum-alloy for durability while remaining lightweight and is coated with a matte black finish to minimize reflections.