Hoods or lens shades help improve contrast by stopping out of frame light source entering the lens. LEE filters are square filters that can be used for effects or managing dynamic range, however as they mount in front of the lens with a holder you can no longer use your lenses standard hood. LEE have a standard, universal and wide angle hoods available.
LEE do not provide many specs for the hood on their website. To help others decide if this is right for them I have included measurements and pictures of mine in different configurations.
Width x Height: External: 21cm x 16cm Internal: 18cm x 13.5cm
Depth: Double slotted : 4cm (Use 5/8" Screws) Single slot : 3.75cm (Use 3/8" Screws) No slot : 3.5cm (Use 1/4" Screws)
Hood Only (No slots or clip):
Min Expansion : 2.5cm Max Expansion : 11cm
Back of slot next to Hood, LEE Logo facing clip, Last slot has blank plate on top covering the logo.
Order is: Clip, plate, slot, slot, Hood.