I just remember the day I got it from Cathayphoto also type R72. I may got it with ring adapter. I think locally only have the R72 or 7200 wavelenght. What you got for B&W photo was everything in the shadow will be lighten up or B&W photo with no shadow. Also on a cloudy day it will appear less cloud on photo as IR pass through them. What camera you use with it? I am using Minolta Dimage 7.