For the third time, this is a subjective test. After reviewing the images in Lightroom, it’s possible the Heliopan was taken a tad too far, and in fact the 1/3 stop it’s gained over the Tiffen may be redundant. At the minimum, this test concludes little diference between the Heliopan and Tiffen.
So, will all the above considered, what have we concluded? Is the really Heliopan worth it?