Was appointed this ND filter for my Canon EOS 600D. This is used primarily for movies, so that this recession refers to the video function with ND filter. The delivery was accustomed Amazon Best thing I can say on the performance of the filter. There are in the variable range without gray streaks and the factor of 400 is enough for me perfectly for a stop of F3.5 from.
I still have to deduct a star. When screwing on the first, on the lens mount, the paint was peeling on the threaded ring on the filter, so I had both clean first, so I'm not the thread broken.