This is an excellent back with only 62135 actuations. It is very clean with no scratches, dings, or abrasions. The glass over the sensor is pristine. I have kept this back in a case and mainly shoot corporate portraits in studio or inside locations. I am only asking $ 5,500.00 for it which I believe is under the market. I am seeing them on ebay for around $6,000 and better. I spoke with the Phase One rep and they said they have sold backs in this condition for $7,000.00.