Problem with Belarus glass designed by Zeiss is the markings are all in Cyrillic, can be a bit confusing, but once zeroed, yer good to go.
That reminds me of the Russian 7X30. They are real odd ball binoculars but the optics are really sharp. I am talking about the real military surplus ones.
They have a slight yellowish tint and to my surprise they actually will cut through haze. They come with orange filters which do even more.
The individual focus eyepieces actually zoom in or out as you adjust them. Surprisingly your brain adjusts to slightly different magnifications between left and right eyepieces without even thinking about it.
I bought my first one at a pawn shop for $35. Now they are up to around $300 and still a bargain.