Sigma 16mm F1.4 DC DN Contemporary for Sony E-mount This is a high-performance APS-C wide-angle lens with a 67mm filter diameter. The original product box is included. A lens protector is also included as a bonus. I purchased this lens new several years ago and used it infrequently, only indoors. It has been carefully stored in a dehumidified storage cabinet. I am selling it because I no longer use it after switching to a full-frame camera. There may be some minor dust and particles, but there are no issues with its use. I believe it is impossible to completely prevent dust and particles even when carefully stored in a dehumidified storage cabinet. Please rest assured that there are no bumps or drops. Operation has been confirmed and is in good working order. To prevent issues such as switching out the product, returns are not accepted for any reason. I generally will not do business with users who have fewer than 20 ratings or who have even one negative rating. Thank you.