530-0 Gehmann diopter 0.0x combined with rear sight iris Diopter 0.0x with rear sight iris 510, but without magnification 50300-0 Gehmann diopter 0.0x Revolutionary world's first diopter 0.0x We are proud that we have finally realized the dream of many sport shooters. Recently disclosed by the German Patent Office and now available. A diopter correction WITHOUT magnification! The target picture size remains equal and clear throughout the entire dioptric adjustment range of +/- 5 dpt. A multi-lens optical system using a highly refractive type of glass makes it possible to correct spherical defective vision without having any optical magnification. In combination with our cylindrical lens system 579 for shooters of all classifications, we are finally able to provide a 100 % substitute for shooting glasses without any magnification which can be used by all shooters. Shooting lenses are at a natural disadvantage to the diopter 0.0x. This is because a shooting lens is made to correct visual defects at the time the shooter is tested. Throughout the day, depending on sugar and fatigue levels, the eyesight can change rendering the lens inefficient. The advantage compared to usual shooters' frames is the possibility to correct the spherical and astigmatic defect through slight fine adjustments any time, while neglecting the need of time-consuming shooting frame setups. Patent pending. According to the latest DSB rules approved without restriction for DSB (German Shooting Sports Federation). Made in Germany