Brands:Formatt Hitech Limited
Firecrest ND 82mm Neutral density ND 3 (10 Stops) Filter for photo, video, broadcast and cinema production.
The glass quality of these firecrest filters are really amazing. But the threads are either too precise or loose. I stack their CPL on top of this IRND and they stuck together like glue. I spent an hour trying to take them apart without destroying them both in the process. While doing so I cut my finger. If your not going to stack filters, these are great, otherwise your better going with something like polar pro.