Best Variable ND Filters for IRIX 11mm f/4.0
Finding a variable ND filter for the Irix 11mm f/4.0 is a notorious headache for landscape photographers. Because of its extreme 126-degree angle of view and bulbous front element, standard 95mm filters often introduce aggressive vignetting or, worse, physically touch the glass. I spent three weeks in the rugged Dolomites testing seven different 95mm systems…