Thank you for your interest in this product! ----------------------------- This is a Nikon Angle Finder (Ref Converter). It's an accessory that attaches to the viewfinder eyepiece, allowing you to view the image from a right angle. It rotates 360 degrees, so you can change the position up, down, left, and right. Built-in diopter adjustment mechanism. It's useful for shooting from a low angle at waist level, such as close-up shots, or when taking pictures of objects placed on the floor while the camera is fixed on a tripod. Compatible models: Nikon FE / FM ----------------------------- It shows signs of use commensurate with age, but is generally in good condition. The viewfinder is clear. Included accessories: Rear cap ※ We offer returns if there are any initial defects. Please purchase with confidence. ＊Feel free to ask any questions. #film camera #old lens Type...Viewfinder accessory