Compatible with Panasonic full-frame cameras and the Sigma fp. Protective filter is included as a bonus. I believe there are no scratches or dirt on the exterior. Stored in a photocatalytic dehumidifying cabinet. No smoking, no pets. No claims and no returns, please. This is a low price, so please do not haggle. If you would like to purchase with the S9, please comment. I will list them as a set for -¥1000.