heard a lot about ND filter but not ready to buy the really expensive one off the bat so based on the review I decided to go with this one. For the price the quality of the glass and coating seems amazing. I never had one so nothing to compare it with. I love that it has a variable adjustment for it, seems pretty neat. Having never own one I decided to go out to the local fishing pond and takes some pictures. I upload 2 photo one with the filter one without and i'm just amazed. The picture I uploaded are unedited right off the camera with and same settings. It brings a lot of color out with the filter. Pro: • Very inexpensive filter with amazing result • Great for anyone who is starting out • Quality glass and coating • Variable ND glass • Neatly Packaged Cons: • Non at this time very happy so far If you are just starting out and don't want to break the bank and just curious on how these things work with your camera i highly suggest getting these. For the price what you got to lose. If its something you might be interested in doing more with your photography skill by all means invest in the more expensive lens but as a hobbyist these are great. If you found my review helpful please hit the helpful button it lets me know my review might have helped you in some ways.