Thank you for viewing. CARL ZEISS JENA leather lens front cap, compatible lenses unknown, is up for sale. There is a hole of about 1mm in the upper center. There are also other minor scratches and scuffs. Please refer to the photos for the detailed exterior condition. The inner diameter is approximately 36mm, measured by an amateur. Please refer to the photos for the outer diameter. Since the compatible lenses are unknown, please research thoroughly before purchasing. #okcamera_product_list I also have other cameras and lenses for sale. Please take a look if you'd like.