Top positive review
Excellent flter for 1/6th the cost!
Reviewed in Australia on 11 January 2019
Amazing ND filter. Well built with good machining. The rings are smooth for a perfect guage of stops to make sure you have a crisp image even under bright Australian sun.
One negative: At max darkening, there is some clearly visible fringing of the vignette you get on your footage. This such a minor problem since if you set the dials to just under max darkening, the fringing disappears. Don't use max darkening and you're golden!