I've got a 400DO in excellent condition. We brought this for the Alaska trip last year and since then it's been sitting in the closet. The glass is clean and clear and everything works as expected. I don't have time right now to get photos of this lens but will within the next couple days. New at B&H they sell for $5,500. This is for sale at $3,500 plus shipping. I prefer payment by Paypal to a verified address however will settle for check and will ship after it clears. Shipping will be the sole responsibility of the buyer.
I was able to get great bear and eagle images which I'll also post as samples just as soon as I can.