The Circular Filteradapter for 4x5.65 Filter-trays enable you to use special circular Filters on a 4x5.65 Mattebox.
They are made from solid aluminium, sandblasted and anodized. You can choose between 77mm or 82mm Thread.
The Adapter itself fits in a standard 4x5.65" Filterray like any Glasfilter does.
Pleas note, that the attached circular Filter will added to the Adapter so you will have to be careful with pulling the tray.