hoodbase for both hoods, "2shade" & "4shade"
 
 

the hoodbase can be used for both filtersizes, 4x4" and 4x5.65", each hoodflap can be fixed fast and safe with two knurled screws. It comes with all necessary srews.

The aspect ratio of the hoodbase is 16:9, though 4:3 shooting is still possible.