Sightron SII Binocular 8x42mm Roof Prism High Definition Black. Sightron's SII Blue Sky line of binoculars feature High Definition Fully-Multi-Coated low dispersion ED glass. Performance is enhanced by dielectric coatings with Phase coated prisms. No matter the task at hand the SII Blue Sky HD binoculars are ready for all jobs from bird watching to hunting or viewing the night sky. Specifications for Sightron 8x42mm SII Roof Prism Binoculars: Manufacturer: Sightron Color: Black Magnification: 8 x Objective Lens Diameter: 42 mm Prism System: Roof Eye Relief: 15 mm Exit Pupil: 5 mm Field of View Linear: 366 ft at 1000 yds Optical Coating: Fully Multi Weight: 23.3 oz Finish: Green Included Accessories: Standard Magnification Type: Fixed Features of Sightron 8x42mm Sightron SII Roof Prism Binoculars: Multi-coated lenses throughout the binocular providing maximum light transmission and superior resolution for edge to edge clarity of the glass; Twist-up and Twist-down eyecups are standard on all SIIWP binocular models. Simply twist-down for eyeglass wearers and twist-up for non-eyeglass weares for perfect eye relief Package Contents: Sightron 8x42mm Sightron SII Roof Prism Binoculars Lens Cloth Lens Cover Pouch Strap Sightron 23016: SII Binocular 8x42mm Roof Prism High Definition Black