This adapter ring used to fit the 100mm holder to different thread diameters of your individual lenses. Formatt-Hitech adapter rings are milled from the highest quality aluminum in the UK.
Ring Thread:
A holder system allows you to purchase one set of filters to fit all of your lenses. An inexpensive adapter ring is then used to fit the different thread diameters of your individual lenses. The holder system is quickly and easily removed allowing you to quickly compose your image, then gently install the holder before taking the photograph without the fear of altering the framing or focus. Holders allow filter stacking, plus rotation of horizon and vertical adjustment of graduated filters. Polarizers work with holder systems using an optional adapter ring.
Formatt-Hitech 100mm holder system features a rugged aluminum backplate, can accommodate three filters, plus an optional adapter ring for using a circular polarizer. The holder mounts to the adapter with a thumbscrew, meaning it attaches securely but can be attached or removed gently, without disturbing the lens.
・Milled from the highest quality aluminum
・Accommodates up to 3 resin or Firecrest glass filters
・Includes spacers enabling the use of a 4mm glass filters as well as our resin and Firecrest filters
・This means that you can use specialized diffusion and other filters which are only made in glass.
・Optional 105mm polarizer ring available
・100mm adapter rings are available in standard and wide angle.
・Wide angle rings bring the holder a few millimeters closer to your lens, reducing the chance of vignetting
