Hello Guys,
In this days i'm evaluating some1.74 HI single vision coming from different sellers (probably 'far east').
It's very unusual for me to see that this samples have the same kind of AR shape at visible range and the same behavior when they are stressed with thermal tests or other kind of quality tests such mechanical abrader tests or accelerated weathering test.
My suspect is : probably this kind of product come from the same place and then it came sold from different distributors for european and american market.
Is there someone who have experience about this kinds of product ???

HI

Mauro Ventura