I took some fantastic photos of my grandchildren with this K+F 1/4 (67mm) Diffusion Filter. Ok they are my grandkids and incredibly beautiful and photogenic but this filter really made the pictures pop. It softened her skin and actually revealed more detail. I use a Nikon 750 with a Nikon 85mm 1.8 lens. I usually use a B+W F-Pro filter, which is very bright. I took most of the pictures with the K+F Diffusion filter on top of the B+W filter. It is incredible to attach the K+F filter. You simply screw in the ring and insert the filter. The latter attaches magnetically, but it's a fairly solid connection. The filter comes with a lens cover that also attaches magnetically, but not as tightly. I've noticed that it tends to come loose when the camera is pushed a bit in my camera bag. That's my only reservation about this filter. I also took off the B+W filter and used the K+F as the only filter on the camera. It works well, but I prefer to use both: I like the effect and I'm incredibly lazy too. The good news is that even with two filters, there was no vignetting.