I bought my son a pair of Leupold Yosemite 8x30s in 2011. The only issue after 10+ years of use was the plastic holding on the eye cups broke and they had the tendency to come off if not too careful when retracting them. The binos performed flawlessly otherwise. Several years later my daughter has come to age to be out in the woods with me and started using them. On a scouting trip she retracted one of the eye cups too far and unfortunately lost it while hiking. I emailed Leupold, with the understanding that this model of bino had been discontinued for several years, to ask if there was any possible way to purchase new eyecups. They replied shortly after requesting me to send them in for evaluation. After a week or so they sent an email back determining these were no longer functional and warranted a full replacement. Since these were a discontinued model they sent me a pair of brand new BX-1 McKenzie 8X42 with chest harness and all. I've been a loyal Leupold customer ever since.