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Anyone wearing eyeglasses or experiencing difficulty focusing may benefit by adding a diopter correction lens to the viewfinder. Diopter correction lenses adjust for near or far sightedness and permit your eye to more clearly see the focusing screen, thereby enabling you to achieve consistently sharp photographs.
The +1 diopter fits onto the eyepiece of the PD or Plain Prisms (this item is compatible with current prism finders only).
