that’s why i love old mf lenses – metal lens barrel, and no build-in af motor, ultrasonic or whatever, nothing really that could get broken within decades, if you handle your lenses carefully, they’d last a lifetime…and perhaps your grandchildren would love to use them. 🙂
besides that, i’ve read some time ago, the zoom lens class 70-200mm is the one which get broken seriously too often within a couple years, i can’t verify this, because i don’t own a zoom lens of that range and/or type.
Started out doing photography at the age of 6 using an uncle's old 1940 kodak brownie box camera. At 15 years of age, I decided to buy my very own 1975 Praktica SLR camera. I now shoot with a Nikon D850. I do unpaid TFP and commercial paid work.