skucera
Well-known
I dare to disagree, Scott.
There are several very good zoom lenses from that era. But when we talk about used lenses, we never know how they have been handled. It easily imaginable that an old zoom lens has an "issue" somewhere and loses its quality.
Kent, I'm hardly authoritative, so I expect disagreement and humbly hope I didn't offend anyone with my post. The main concern with zoom lens design is that their optical design is so very complicated, with the mathematics expanding exponentially with every added element. It's no wonder that zoom lenses were rare before computers came along in the Sixties and Seventies. Also I was commenting only about the lenses I actually own, not about all zoom lenses made by these manufacturers in general. I should have been much more specific about that.
Scott