An acceptable compromise for separate dedicated ND & Circular Polarising filters . Interference pattern & colour cast (warm red) about two stops from full polarisation . The 46 mm dia filter supplied in a large 95mm square plastic box, you need large coat or camera bag pockets for this box.On the plus side a slim filter so no obvious vignetting & functions well until you approach near the maximum setting ; despatched from Japan so it took 14 days to arrive (advised delivery up to 28 days) not a problem for me but possibly for others who need it now .
18/02/2015