I have had a pair of steiner miltary-marine 10x50s for the past 10 years and other than being a bit heavy they are excellent and compare well with any of the other mid priced German/Austrian optics. However Leica has always been rated in the top 2 or 3 with Zeiss and Swarovski for glass from europe. I am not to sure who actually makes the Steiner lenses. I know that most of the best Japanese glass is either made by Olympus or Nikon and the rest buy from them with the coatings they want. Another German brand not found here in norht America is actually a subsiduary of Zeiss called Dr optic i believe they are actually the old Zeiss Jena plant in the former east Germany and are fairly good too.