Originally posted by bc_the_path Why do I ask?
Because I do not how can I evaluate the words about a lens properly. Optical performance only? "Feel"? Weight? Which should come first? (I mean, the relative value of each property; surely optical quality must be the first).
Well, not always. I would say that the FA50/1.4 has a slight edge on my Super-Multi-Coated Takumar 50/1.4 optically but I don't like using the plastic-wrapped lens nearly as much. There is another guy who is even crazy enough to sell an FA 31/1.8 Limited - twice! - for (mostly) other-than-optical complaints.
They're as valid as any other complaint - if you hate using a lens, it doesn't matter how good it is optically because you'll never use it!