Gives beautiful effects!

Filter comes with a high quality plastic box. The lens cover is incidental, although always welcome.
The first tests with this filter are conclusive. I still feel that passes a light beam. I do not know if this is due to the thread of my goal is still a bit old or filter model that I received.
Nevertheless it is quite easy to remedy this problem with a rubber band.

For those who have a D600, consider hide the viewfinder during shooting for long exposures because of light may enter through the viewfinder and cause light spots on the plate. This can happen with other NPC, but I do not know the list.

Regarding the colors, it is not visible at all. I think it looks magenta side, but I'm guessing that because of my job problem mentioned just before. So if you take precautions by masking the viewfinder, you should have no problem and especially any specific colorization. At worst, 20 seconds post-treatment will result in any change in color.