yes, it quite expensive. And you get a very small lightweight lens in return. I don't mind the f3.5, otherwise it would probably have become a rather big, complicated and even more expensive lens I guess. It's now so small and light it's easy to bring with you.I think it's a great idea for an XF prime, but man, that asking price for an f3.5. Just seems too steep for me.
Tomorrow should be yet another beautiful day, and I think I'll visit either Haarlem or Amsterdam, and bring this lens. I'm curious how it will work out in town.