The Solidar Quattro was the first of our designs to start neutralizing the 5 principal errors inherent in off-axis vision: Spherical Aberration, Oblique Astigmatism, Distortion, Coma, and Curvature of Field.
Although an older design, it is still a favorite of some of our longtime customers. The Quattro is the grandfather of our Elite 4K. While the 4K is great for all activities, the Quattro is best for outdoor use.
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