They dropped SWAROCLEAN as far as I know but I don't think they replaced it with anything?Appreciate the main point that Tim was trying to make with this thread as well. The NL Pure was the first device that Swarovski was heralding as completely PTFE free (this was highlighted in their company reports) This of course demanded the implementation of new lens coatings, gaskets, seals, and new materials in high-friction areas such as the focus mechanism. While I’m in favor of controlling significant environmental impacts, the question remained if those newly substituted materials would be equal to PTFE features in field performance or would they result in some degradation of function. I can say that when I was face-to-face with Swarovski reps at multiple trade shows it was a topic they absolutely did not want to discuss.
Do you have a reference to the PTFE-free claims? I find nothing on their "modern" website (it's mess).
Less efficient gaskets + water = sticky focuser reports? Is that what you suggest?