Special f stop viewing hood for 127/135mm Optar View Lenses in Rapax

item #Optarhood. Many 4x5 Graphic cameras came with 135mm f4.7 coated Optar lenses in Rapax shutters. This shade was designed so you could see the f stops from above when setting the lens on a 4x5 press camera. The hood has a lever and is coupled to the lens. Condition 8+.