Works well nice color .i actually dont see any diffencies in color toning as hear you can a greenish tone or yellowish. But for me its just fine.
21/10/2015
Used for my 85 1.2. It does a bit of what i need it to do, but SEVERELY degrades image quality. I would rather wait for more ideal lighting situations and shoot that use the images coming though this filter. Perhaps it's more of a personal preference.
12/07/2015
I purchased this variable ND filter to use on Nikon D300s with 18-200mm lens. I tested the filter against a white wall over various settings: f-stops, shutter speeds, ISO and ND settings. Works quite well at all settings except extreme ND where I saw uneven brightness areas on the exposure but I had to push ISO past 3200 to even get the exposure. At 3200 ISO it could also be the camera. In all I am very satisfied and would recommend this variable ND filter for most amateur photographers. For amateur photographers the price is right.
24/04/2015