IRIX Edge 58mm ND32 Neutral Density 1.5 Filter IFE-ND32-58 B&H
Irix Edge Vari ND 2-5 - Irix lenses were designed with both the effort and experience, of not only engineers, but also photographers. Swiss precision and Korean innovation create
Irix announces new line of ultra-thin 2-5 stop variable ND filters, starting at $130: Digital Photography Review
Photo101: Why and how to use ND filters (feat. the Irix Edge ND32000) - YouTube
Amazon.com : Irix Edge Gelatin ND Filter Set 29 x 29 mm ND4/ND8/ND16 for Irix Lenses | Gel Filter Ultra Thin | : Electronics