In this review, I’m testing the new PolarPro Quartzline ND 64 filter and PolarPro ND16 / PL (polarizer) filter. Those filters are made of 99.9% fused quartz to ensure optical clarity with a very low refractive index. The frames are built from machined brass to ensure they thread on smoothly – very essential as I have experienced seized up filters from aluminium frames myself already. A very nasty experience …
PolarPro claims a neutral color balance, zero color shift and near perfect transmission by the optical coatings. For more information about the available filters and sizes, please head to Richard’s article.