Nikon F Photomic FTN Finder Battery inserted, exposure meter needle movement confirmed. Slight deterioration inside the prism. I think there is very little dust and debris. One screw is missing from the front cover. Since I don't have the main body and cannot confirm the exact operation, I am selling it as junk. I do not have much knowledge of camera parts, so please research the details yourself. Please check if it is compatible before purchasing. (Returns and exchanges due to incompatibility are not accepted.) I am listing many cameras and lenses. You can see them more easily by viewing the list. #Click here for a list of cameras I am selling