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The SI Tombstone lenses are our leading model in terms of performance for the modern shooter. We have worked with top professional shooters to identify the most common problems with standard glasses. Responses focused on three specific areas: Field of View, Contrast/Clarity, and Interchangeable Lenses. Using Eye-Tracking technology, we have identified the key areas of the field of vision to obtain 120-degree vision. We have also used PRIZM™ technology to offer you vision with greater contrast that allows you to focus your vision on one point and reduce eye fatigue. Finally, we have incorporated a tab to exchange lenses without touching them.
The SI Tombstone lenses are our leading model in terms of performance for the modern shooter. We have worked with top professional shooters to identify the most common problems with standard glasses. Responses focused on three specific areas: Field of View, Contrast/Clarity, and Interchangeable Lenses. Using Eye-Tracking technology, we have identified the key areas of the field of vision to obtain 120-degree vision. We have also used PRIZM™ technology to offer you vision with greater contrast that allows you to focus your vision on one point and reduce eye fatigue. Finally, we have incorporated a tab to exchange lenses without touching them.
