Diopter correction lens (+0.5) for Rollei SL. It can also be attached to the Rolleiflex 2.8E. This is a +0.5 diopter correction lens for the magnifier. There are no noticeable stains or major scratches, and the lens is clear and can be used without any problems. Although there are no noticeable scratches, please refrain from purchasing if you are sensitive to such things. Please note that we do not accept price negotiations.