The Celestron EclipSmart 10x25 Solar Binocular has premium performance and superior safety in optics. Celestron is proud to present this new line of innovative solar viewing products for general solar viewing.EclipSmart solar products feature Solar Safe filter technology providing the ultimate protection from harmful solar radiation, including both IR and UV light, and filters 99.999% of visible light. Celestron Solar Safe filter technology is GUARANTEED SAFE for direct solar observation and has been independently tested by SAI Global Assurance Services. Solar Safe products conform to and meet the transmission requirements of ISO 12312-2, Filters for Direct Observation of the Sun, EN 1836:2005 + A1:2007 (E) for an E15 Filter for the Direct Observation of the Sun and, AS/NZS 1338.1:2012, Filters for Eye Protectors.With its multi-coated optics, the Celestron EclipSmart 10x25 mm binocular offers high contrast images to clearly show the details of the Sun. The natural image color presentation also enhances the view of the Sun allowing the details of the Sun to be seen how they truly are. The Celestron EclipSmart 10x25 mm binoculars also provide a generous field of view allowing for a full image of the solar disk to be seenFeatures- Premium EclipSmart Solar Binoculars featuring Solar Safe filter technology for guaranteed safe observation of the Sun- Dual lens non-removable glass solar filters fully meet ISO12312-2 - Safe viewing of the sun when used in accordance with the included instructions- The generous field of view allows users the ability to easily locate the solar disk and view the entire disk while observing- Observe the natural details of the Sun with the natural image color presentation- Durable and rugged for protection during use and storage provided by the Rubber armored aluminum body- Even with their strong solar filters, EclipSmart multi-coated optics offer high contrast images to clearly show the details of the sun- 2 year WarrantySpecificationsMagnification 10xObjective Lens Diameter: 25 mm (.98\")Angular Field of View 5.7 degLinear Field of View (@1000 yds) / @1000 m) 288 ft (96 m)Exit Pupil 2.5 mm (.09\")Eye Relief 10.5 mm (.41\")Close Focus 26.2 ft (8 m)Interpupillary Distance (max) 72 mm (2.83\")Interpupillary Distance (min) 56 mm (2.20\")Diopter Adjustment Range