Yesterday I ordered lenses from KEH with overnight delivery. They arrived today and checked out fine functionally. KEH was conservative in their ratings for the lenses I bought. One appeared to have never been removed from the box, still in crisp plastic wrap, not wrinkled and with all documents. It was rated LN -. On close inspection, I could not find any evidence the lens was ever mounted. Another was rated Ex. It also had some of the original plastic on the LED aperture (Batis) and showed no evidence of use or mounting on a camera. It was missing the sun shade and that may have been why it was downgraded to fourth place in the pecking order (LN, LN-, EX+, EX). Will order from them again.