So I had a pair of Alpens (10x42) I bought about 20 years ago because I read they were a good budget buy. I've carried them hunting for the past several years as a back up and after pulling them out this year I realized one sets of threads on the eye cups were jammed and not moving. Remembering the lifetime warranty with the product I tried to get on the website to find warranty information but it wouldn't load. Searched "news" and found the company is out of business after 22 years! So much for the warranty....
http://www.guns.com/2018/03/02/alpen-optics-says-goodbye-after-22-years-in-business/
http://www.guns.com/2018/03/02/alpen-optics-says-goodbye-after-22-years-in-business/
