Lee ND Grad Filters colour accuracy

OnLandscape magazine has had a series on neutral density graduated filters, with one part on colour accuracy. Tim Parkin, editor and author, happens to mention that his very old Lee resin filters had changed colour over the years and now had a strong colour cast. I had suspected this myself with my own set of Lee resin filters. A quick test confirms this. Here are some shots I took, the captions tell the story. Continue reading