Reviewed by 2 customers
Optical quality is good but the mounting threads are rough and uneven. Since this filter is used for protection it will not be on and off the lens frequently so the rough threads are less of a problem. If you plan to frequently add and remove another filter from the front of this one you should consider a protective filter with better quality threads. They cost more but will be less trouble in the long run. Only conditionally recommended
The product is excellent - very clear. I ordered two of them for my lenses [...]. After cleaning, they were crystal clear.