Green Coating?

Here's a newbie question:

When I read reviews of EPs or binoculars on astro pages I often
encounter the author sighing with please at the sight of the intense
green reflection from the glass coatings (I call it "bug-eye green").
This is, apparently, seen as a sign of a high quality optic.

On the other hand, I'm a photographer, and none of my Zeiss, Nikkor,
and Leitz lenses (for 35mm), my Schneider and Nikkor lenses (for 4x5),
my Zeiss lenses (for 6x6), nor my Pentax lenses (for 6x7)--not owned
at the same time!--have ever shown anything remotely like this--all
are multi-coated and perform very well.

I also notice that my higher-priced Takahashi EPs don't show this, but
that the cheaper EPs I own do. My (cheap by bino standards) Oberwerk
binos are green, too.

Is there any real reason to prefer the green, lovely as it is to look
at, in actual use? Why do people praise the green reflection?

--Darin

Darin Boville
Fine Art Photography and Video
www.darinboville.com