This filter is ND1000 with its amazing price given the quality compared to other equivalent but more expensive filters, so I highly recommend. Warning seen the expo bcp longer time (in sunlight summer afternoon, we happily reached 4 sec closing to f / 16!), Be sure to close the viewfinder lœilleton back to your device photo, I thought indeed that the filter was a failure because I had greenish streaks on my photos but actually I forgot to hide the viewfinder of my camera and you should know that light during the exhibitions " long "fit through there ...
