Singh Ray Daryl Benson ND-3 Rev. Grad. for Cokin P  type_Single Use Cameras which may refer to the

which may refer to the fifth plague

maybe less so for stills

but will just fit the EF 70-200mm f4 or the RF 70-200mm f2

in a super slim frame without front filter threads

Singh Ray Daryl Benson ND-3 Rev. Grad. for Cokin P &nbsptype_Single Use Cameras which may refer to theThe Singh Ray Daryl Benson ND 3 Rev. Grad. is a 3 stop "reverse" graduated neutral density filter designed to fit in Cokin P filter holders (sold separately). A reverse graduated ND filter is darkest in the centre, like a regular grad ND filter. But unlike a regular grad ND filter, which gets darker closer to the edge, a reverse ND lightens up: you can see this on the image. A high quality filter in excellent condition.