Fujinon Polaris FMTR-SX 10x70mm High-Resolution Porro Prism Binoculars w/ Field Flattening Lenses Black 280mm x 238mm x 88.5mm. FUJINON POLARIS series binoculars offer superb optical performance and value. The FUJINON POLARIS series binoculars deploy FUJINON'S unique EBC coating allowing 95percent light transmission. With field flattener lens offer edge-to-edge sharpness free of any discernible astigmatism or distortion. Specifications for Fujinon Polaris FMTR-SX 10x70mm High-Resolution Porro Prism Binoculars w/ Field Flattening Lenses: Manufacturer: Fujinon Color: Black Magnification: 10 x Objective Lens Diameter: 70 mm Prism System: Porro Eye Relief: 23 mm Exit Pupil: 7 mm Field of View Linear: 93 m at 1000 m Optical Coating: Electron Beam Coating Binoculars Focus System: Individual Eyepiece Focus Twilight Factor: 49 Interpupillary Distance: 56 - 74 mm Close Focus: 20 m Diopter Adjustment Range: 5 dpt Water Resistance Level: Waterproof Length: 280 mm Weight: 1.9 g Finish: EBC Multicoating Magnification Type: Fixed Width: 238 mm Features of Fujinon Polaris FMTR-SX 10x70mm High-Resolution Porro Prism Binoculars with Field Flattening Lenses Nitrogen-purged waterproof and fogproof lenses Up to 13 Fujinon EBC multi-coatings on all surfaces 56 to 74mm interpupillary adjustment range Protective rubber armoring Accepts optional 1.7" eyepiece filters including UV/haze polarizing nebula and solar filters Package Contents: Fujinon Polaris FMTR-SX 10x70mm High-Resolution Porro Prism Binoculars with Field Flattening Lenses Objective Lens Covers Eyepiece Rainguard Soft Case Neck Strap Fujinon 16779823: Polaris FMTR-SX 10x70mm High-Resolution Porro Prism Binoculars w/ Field Flattening Lenses Black 280mm x 238mm x 88.5mm