Ironworker,
SOME German optical glass is as good as any made, but so is some glass from other countries. What I'm saying is that the best glass isn't only available to German companies.
It also depends on the particular scope model. Some Leupold scopes are brighter than some Swarovski scopes (which by the way aren't made in Germany but Austria).
As discussed in the article, brightness isn't due just to glass but coatings and other factors.
