This one is from one of my earliest photographs i “published” on this blog this year. This was taken during the spring, and it is suffering from a lot of reflections in the water. So I tried the polarization filter on nik collection, and it seems to be working ok. I guess a polarization filter is more suitable but I havent been able to find a rectangular filter 100x100mm. I have looked into it slightly and it seems that for the threaded round ones, you can twist it and control the amount of reflections this way. Does anyone use a 100×100 rectangular polarization filter, and which one can you recommend?