Product information: “Iris Shutter System for K5”
The iris shutter system is designed specifically for Knobloch K5 shooting glasses It can be used for right or left aiming shooters. The system includes 23mm lens-holder and a 23mm Iris shutter.
Tip: First of all, you should achieve the right correction for the aiming eye then you can increase the sharpness with the iris shutter.
