Is Ring-Type USM on the Way Out?

[scyrene]

But as people have hinted, presumably each named tech has been improved over time, even if it has the same name?

 

[blackcoffee17]

Ring USM is, what, 35 years old, maybe more? It was superb back when the most important attributes of an AF motor were fast starting and fast, accurate stopping, plus quietness. No other brand could compete with Canon's Ring USM for stills on a 1990s SLR. It's kind of sad to see it go but there are so many better alternatives now.

Probably there are better alternatives now but im also sure the ring USM is not the same as 35 years ago. Probably was constantly improved. Cars were also invented 100+ years ago and yet the modern combustion engine is a spaceship compared with the original one