Well, he asked for opinions what is better.

As an optics engineer, I know optometrist don't know quality of lenses over anyone else. They are experts on what we call classical optics and theory which is the same for your lenses. They are experts on physical anotomys.Butas I have many discussions about optics with my eye doctor too,he asks several questions, and admits he has only messed with the equipment we use whenin physicsin undergraduate school. Don't get me wrong, they worked hard to get where they are. But unless you are in the R&D of the medical field and service the equipment that cuts the lenses from the sphere, you never touch it, you never qualify it or test it. But I agree with your doctor, as we do alot of business with all the Euopean optics suppliers. They are top notch. Nobodies saying they ain't. But the sad truth is, that the Asians have caught up with them. And as my company finds out, its almost half the cost in some quotes.

What you are talking about is what we call Back Reflection, dispersion and Loss (dB).

Now, on this page, popularity is the same as opinions or a poll. Unless people on here work for Ziess or Leupold in thier R&D, what they post is just that opinions. So his basis, for posting that about Leupold, has about the same wieght as anyone posting thier opinons, including myself, as anyone else.

Hey man I love em both, just thought you gave him a tough time.