December 26, 2022. Zeiss Lifetime Warranty is a joke. Don't believe it. I did and now have paid the price. I own a pair of 10x40 t+p binos. I have owned them for 12 years. They were made in 1998. Great condition, great binos, until a recent issue with focus detail. The lens are crystal clear, but there is a slight focus issue. They won't detail to the penny. I called tech support with Zeiss; explained; and was told I need to have a focus rod adjustment. Said it was a lifetime warranty covered item. So I sent them on my 17.00 shipping cost to be told they would not honor the warranty. They're reason was explained by them educating me that the binos I had were manufactured without a sealed unit process; explaining that over time, humidity can enter the bino body and form fungus? Fungus? If they suspect there could be fungus; they don't want to open the bino body in shop because it could expose all items in the shop to fungus! I asked if they were 100% certain a fungus existed and they answered no. However, since they manufactured them without sealing the unit, there was a high probability it existed. So I asked, if you built them the way you built them and sold them with this knowledge, why won't you stand behind them? They basically took the position ; That they can! They only offered me 1 option: They would sell be a comparable pair for 749.00. There is no logic in this warranty denial. The binos have a crystal clear view and they acknowledged that fact. But they maintained there position based on the way they were manufactured without a unit sealing process. Do not buy Zeiss products if you expect to have a lifetime warranty. They will double talk they're way out of it!