The filter is delivered in a practical plastic packaging and makes a very high-quality impression. I wanted protection for my Sigma 150-500er (86mm filter) to protect my objective lens from sand and salt even in high winds on the Baltic Sea. In full screen mode on the PC, the photos look sharp, but is reflected in the 100% view a certain blur which is not there without a filter ... All in all a good filter - but only a good - not very good. From me 4 ****
