IFH-100-PRO Filter Holder - Irix lenses were designed with both the effort and experience, of not only engineers, but also photographers. Swiss precision and Korean innovation create
IRIX Edge Starter Set Filter Kit (100mm) IFHC-100-SS B&H Photo
Irix Adapter Ring (for Irix Edge IFH-100 / PRO Holder) 82mm 7640172190951 | eBay
Irix launches a new 100mm filter holder with drop-in circular polarizer | Digital Camera World
Irix Edge IFH-100 Filter Holder - YouTube
Irix Edge IFH-100-PRO: The Advanced 100mm Filter Holder! - Irix USA