B+W Bay 60 420 UV-Blocking Glass Filter

This even more stringent B&W Bay 60 420 UV-Blocking Glass Filter behaves like the B&W 415 UV-Blocking filter except that its filtering slope completely blocks the UV radiation all the way into the visible violet region. As a result, it has a noticeably yellow tint.

This filter is specific to lenses with Hasselblad's exclusive Series 60 (Bay 60) filter size.