For 25 mm Spectacle Lens. Your individual, improved spectacle lens is put in the ahg-monoframe. With the help of a set adapter and a clamp, the ahg-monoframe is mounted centrically in front of the sight disc or the iris disc. Therefore, your sight defect is corrected directly on the iris disc and aiming mistakes are avoided to a large extend.
Only spectacle lenses with an outer diameter of 24 mm can be used.
Ahg-monoframe does not correspond to the presently valid rules of ISSF, but can be used in many other disciplines.