The thread running very easily if one actually attaches the filter parallel to the front lens. Va also solving works with little effort.
Significant changes in color or loss of sharpness, I could not tell, that is remarkable for the price.
The inscription is legible and I mean permanently.
Each filter is individually packed in a plastic box, but the metal transport caps are virtually priceless.
The only minor complaint: The filter glass is not firmly anchored in the threaded ring for all 3 100%. The game, however, is minimal, I mean less than 1 / 10mm, you can tell quite easily rattle. The function that has in no way affect and also during transport will not reduce the.
All in all an excellent product.
