Product Code: 6329/10Dipotres / Mag: 54.9D / 14.7xLens Diameter: 30.8mmImage Vergence: -2.5DEffective Focal Length: 18.20mmField of View on Page: 26.0mm6329/10 (14.7x) High Powered RaylitesPart No:6329/10 Technical SpecificationsDipotres / Mag: 54.9D / 14.7x Lens Diameter: 30.8mm Image Vergence: -2.5D Effective Focal Length: 18.20mm Field of View on Page: 26.0mm