True, except the glossy side is the lower side-the fresnel side is the upper side.
DOH! I misspoke. The glossy upper side IS the fresnel side. Drag a fingernail or the edge of a piece of paper across it lightly, and you will hear the sound made by the ridges. Or look with a loupe.
I do use a digital device in my photographic pursuits when necessary.
When someone rags on me for using film, I use a middle digit, upraised.