Pentax DCF SP 10x50 Binoculars, Green Housed in a nitrogen-filled magnesium-alloy waterproof body (JIS Class 6) and protected with a full-body rubber housing Exceptional image quality and close focusing with edge-to-edge sharpness High-resolution phase-coated roof prisms Scratch-resistant hydrophobic coating on exposed objective and eyepiece lenses Multi-coated optical elements