Originally posted by sarge I would stay away from a lens with mold. You say that you want this for outdoor use and admit you are not careful. You will most likely be putting this lens in situations that will make the mold grow.
That’s the problem. I also hike, mountain dew, fog, rain , any kind of humidity would make matters worse. Buy a clean lens. Dust is the only flaw I would accept. I don’t think you could have anything serious to lose for not getting that extra 65mm in zoom range.
You get a lens that will work for you and last.