Nothing to add aesthetically to the filter: very well made (at this price!) In a discreet white metal with Canon and insert the screw that slides like butter. The filter storage box is super strong (same: at this price, we can at least expect it!)
Quality without / with filter is perfect .... I do not understand the superstitious who say they see a difference, it is impossible to see the difference anyway on my setup: it does not alter the image on the sharpness, the chromisme or corners. The quality at a price ... but ... She is VERY EXPENSIVE for a filter serving only to protect!
A purchase to recommend only from a certain level of equipment I think.
