Yes, I guess so, but 'when water is everywhere'....One does not appreciate that truth.
These lenses are often fogged due to internal haze. It is not too difficult to clean by removing the front element set (either unscrew ring or, on some, the side set screws). You are correct: they make stellar portrait lenses at the low range or about 80. And, yes, they are truly sharp. But...heavy!!! - David Lyga