Irix is expanding its line of Edge filters with the new Edge Gelatin Filters, a set of 15 neutral-density gelatin filters designed especially for Irix lenses. The filters from the Swiss company come in three densities—0.6 (ND4), 0.9 (ND8) and 1.2 (ND16), with 2, 3 and 4 stops of reduction, respectively—with an ultra-thin (0.1mm) high-quality film to help prevent aberrations and distortions.
Designed in Switzerland and made in South Korea, the filters fit in the rear filter slot of Irix wide-angle lenses, currently, the 11mm F/2.0 Firefly, 11mm F/2.0 Blackstone, 15mm F/2.4 Firefly and 15mm F/2.4 Blackstone for Canon, Nikon and Pentax mounts (the Fireflys feature an ultra-lightweight design, the weather-resistant Blackstones are more ruggedly built). Photographers can us a single gelatin filter with the 11mm or one gelatin filter with a screw-in polarizer for the 15mm.
The Edge ND gelatin filters are available now, priced at $8.45 for the set. The filters come with a 5-year warranty.