Model with large objective lenses. Exceptional optical quality for the highest demands. The large objective lenses in the design allow for a high-contrast, bright view in all lighting conditions. The first models of the S-series with ED glass elements (Extra-low Dispersion) ensure a clear, high-contrast view of the image field and effectively compensate for chromatic aberration. Objective lenses with a diameter of 42 millimeters provide excellent observation performance, effortless viewing of the object, and good usability. The application of a complete multi-coating and a special coating process to optimize light transmission ensures a clear view of the subject with minimal glare and ghosting. Waterproof construction according to JIS Class 6 for reliable use in adverse weather conditions.