It is pretty well cut and corresponds almost to the exact measurements for a Nikon D7100 housing, but frankly it does not even see once well pasted. This protection does not gloss therefore avoiding reflections, and it is rather the case.
As against the words "Without influence on the quality of the screen, without negative influence on the use." is not at all accurate. Once positioned, it blurs the screen completely, so it's just unusable once asked!