Opticron T4 Trailfinder WP 10x25mm Compact Roof Prism Binocular Black. Suitable for casual wildlife observation as well more specialised pursuits where ease of use size and weight are desired. Specifications for Opticron T4 Trailfinder WP 10x25mm Compact Roof Prism Binocular w/ Soft Case and Lens Covers: Manufacturer: Opticron Color: Black Magnification: 10 x Objective Lens Diameter: 25 mm Prism System: Roof Prism Material: BAK4 Image Stabilizer: No Eye Relief: 17 mm Exit Pupil: 2.5 mm Field of View Linear: 288 ft at 1000 yds Field of View Angle: 5.5 degrees Optical Coating: HLT Fully Multi-Coated Binoculars Focus System: Center Focus Twilight Factor: 15.8 Interpupillary Distance: 2.3 - 2.9 in Close Focus: 5.9 ft Diopter Adjustment Range: 6 dpt Weather Resistance: Yes Water Resistance Level: Waterproof Length: 3.9 in Weight: 0.7 lb Finish: Non-Slip Rubber Covering Fabric/Material: Polycarbonate Aluminum Alloy Package Type: Box Included Accessories: Soft Case with 31000 Nylon Strap Rubber Objective Lens Covers Magnification Type: Fixed Features of Opticron T4 Trailfinder WP 10x25 Compact Binocular w/ Soft Case and Lens Covers Compact single hinge roof prism design for one hand operation Fully armored Nitrogen gas filled waterproof High light transmission fully multi-coated optical system 4-stage twist-type retractable eyecups Package Contents: Opticron T4 Trailfinder WP 10x25 Compact Binocular w/ Soft Case and Lens Covers Case Neckstrap Cleaning cloth Lens covers Opticron 30707: T4 Trailfinder WP Compact Binocular Black 10x25