Erik Naso
Veteran
Lee filters aren't 4X4 they are 100mm x 100mm so they don't fit in a mattebox filter tray. I had to buy a ND filter for a shoot and its all they had in stock. On the pouch its printed with both 4X4 and 100mm X 100mm which is imposable since 100mm is smaller than 4". Just a heads up if your thinking about purchasing a Lee 100MM x 100mm filter.