Aurora PowerND Rear Mount ND Filters for Irix EF Lens (3/6/12/16 Stop)
Unique rear mount filter set for Irix 11mm/4 and 15mm/2.4 (EF version)
4 Filters (ND 8, ND 64, ND 4000, and ND 65000) plus a filter adapter
Zero vignetting and ghosting effects
Much better optical performance than gel filters
Filters made from Gorilla Glass
Unused… in brand new condition. Bought from Aurora in USA
Sold my IRIX lens soon after, didn't use these
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