In the "good old days" the coating on the lens used to be made from Gelatine. Although great for lens coating Gelatine had a few drawbacks. One is that it was quite soft and easily damaged. The other was that it absorbed moisture and was great food for mould. I have lost a number of good SLR and 2 1/4 sq lenses to mould over the years.
My question is;
What are the new coatings based on, and is it more resistant to mould than the old ones? Electronics etc are still very sensitive to high humidity, but will the lens be safe from mould in high humidity environments??
Thanks for any input.