Why won the 4×4 ExpoDisc fit into my Lee Filter holder?
The foundation kit is at the centre of the Lee Filter holder system and is primarily designed to take standard 100mm square filters, although other filter sizes can be adapted to fit. The unit is supplied in component form to allow the photographer to construct a filter holder tailored to his or her individual needs. This kit contains all the components necessary to construct a versatile holder, capable of holding up to four filters. The photographer can then choose which combinations of filter thickness they want to use by selecting and fitting the appropriate filter guides with the screwdriver provided. The ExpoDisc requires the installation of a 4mm filter guide into the Lee Filter foundation kit. Additional guides and screws can be purchased separately from Lee Filters.
