cular7.0 x 28 dpt32 mmTechnical data Magnifiying glasses Type of use/Application typebinocularWorking distance180 mm Operating unit (magnifying glasses) Magnification2.5 xDioptre5 dptMaterialsmanual_l [...] PXM® lightweight lens for a distortion-free image with edge-to-edge sharpness.Lens clamp made from glass fibre reinforced plastic.When not in use the shield can be simply lifted up out of the way.Headband