Try giving it time to accl

Try giving it time to acclimate to your environment. Most condensing occurs when warm moist air comes in contact with a cool/cold surface. This is why a glass of ice tea “sweats” in the summer time.

It sounds like you just got it out of the shipping box and started trying it out. If it was cold to the touch, there is where your problem is. The lens was cool enough to have this happen to it. Let it warm up to your “room” temperature before you use it in the future.