Iris disc AHG 9570

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This high quality iris disc is made in Germany. Complete with optical device adjustable from -3.5 till +3.5 and 5 glass filters in the colours: yellow, green, brown, grey and light grey. The continiuously adjustable iris disc enables optimum focus adjustment. By opening and closing the iris, the shooter can see the sharpness and focus of the target changing. The best results are achieved in the range 1.0-2.0 mm. Ranges above 2.0mm can be helpful if a shooter has his eye far away from the rear...