case encloses the lens and is dust-tight.With round-the-neck cord.Technical data Magnifiying glasses Type of use/Application typemonocularWorking distance20 mmDistance Eye - Lens (e)40 mm Lens properties
case encloses the lens and is dust-tight.With round-the-neck cord.Technical data Magnifiying glasses Type of use/Application typemonocularWorking distance29 mmDistance Eye - Lens (e)60 mm Lens properties
case encloses the lens and is dust-tight.With round-the-neck cord.Technical data Magnifiying glasses Type of use/Application typemonocularWorking distance44 mmDistance Eye - Lens (e)150 mm Lens properties