Using Lens Files are a great way to match up different colour variances between lenses. Here is an example of one of our lens files which we use with our Zeiss 15.5mm-45mm Zoom. 01 Zeiss-LWZ8947186 File ID Zeiss-LWZ8947186 File Source Memory1 Lens Center H 0 Lens Center V 0 FlareR +13 FlareG +16 FlareB +19 White Offset R +2 White Offset B -3 Shading Channel Select Red Shading H SAW +2 Shading H PARA -3 Shading V SAW +1 Shading V PARA +1 Shading Channel Select Green Shading H