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My guess would be that the glass is made by Schott AG in Germany. It is owned by Zeiss.

The scopes are probably made by a company which I cannot quite pin down. They are called KOMZ sometimes and Baigish and probably other names.

I have one of their 7x30 binoculars and they are really odd. First of all they are extremely sharp optically. They also have a distinct yellow cast which is put there on purpose. Also include a set of filters which makes the image more orange than anything else.

Also when you adjust the focus on either side, the image either zooms in or out depending on which way you turn the eyepiece. Surprisingly, your eyes don’t even notice and they automatically merge the images as the same size.

Also there is a slight amount of built in distortion which makes the image appear perfectly straight as you scan. Normal binoculars seem to distort the image as you scan.

Also the eyepieces have a 7 element design which is more than any other binocular that I am aware of. Most have 3 elements.