Polarizer rings are a threaded ring that will fit onto Formatt-Hitech aluminum holders, accomplished by using longer brass screws. These rings are made from durable nylon.
Formatt-Hitech polarizer rings are designed to work with the full range of aluminum holder systems
Polarizer rings are made from durable nylon
When attaching a polarizer ring to holder system longer brass screws are required especially when stacking filters
67mm holder requires 77mm polarizer ring
85mm holder requires 95mm polarizer ring
100mm holder requires 105mm polarizer ring
100mm Lucroit holder requires a different polarizer ring