Optional filter tray:
A wide range of optional Clamp-On Adaptor Rings are available for the Elite Matte Box, ranging from 80mm to 121mm, so you can easily match it to the lens of your choice.
Optional support brackets:
Elite Nuns Knickers
Do-nut ring fitted with a black-out fabric cover that wraps around the barrel of your lens to block out any light completely.
When use in conjunction with the Swing Away Bracket, therefore the Matte Box does not have to be removed from the bars when changing lenses.