The Hoya Bay 50 Diffuser Glass Filter produces a general softening of the image and is good for normal portraiture. The filter surface of the Diffuser is cut in a non-regular pattern thereby producing a overall softening of the photo.
This filter differs from the Hoya Duto in that the Diffuser generates a overall soft image whereas the Duto produces a soft image without losing sharpness.
This filter is specific to lenses with Hasselblad's exclusive Series 50 (Bay 50) filter size.