This is a macro lens for Olympus digital SLR cameras. It is for the Four Thirds mount (please note that it is not Micro Four Thirds). I purchased this several years ago, and the exterior has few noticeable scratches and shows little signs of use. The lens has no mold or fogging, but there is some dust inside that does not affect the image quality. Autofocus and aperture operation are good. Photos 11 and 12 are sample images taken with an E-420. Included accessories are lens caps (F, R). The following is an excerpt of the specifications: Compatible Mount: Four Thirds mount Lens Construction: 6 groups, 6 elements Aperture Blades: 7 blades Focal Length: 35 mm Filter Diameter: 52 mm Maximum Diameter x Length: 71 x 53 mm Weight: 165 g Mount: Four Thirds mount