The Lee Wide Angle Double Filter Hood is a filter holder with a built-in compendium lens shade. It accepts two 4" (100mm) wide x 2mm thick filter. The self-supporting, compendium-style bellows expand to the required position without using guides or rails. This wide angle lens hood works with graduated filters in the horizontal format only. It attaches to the lens via optional adapter rings. It can be modified to function as an accessory lens hood for a standard Lee filter holder with the addition of optional Lens Hood Rails, B&H catalog #LERLH.