Cassini Porro Prism Binocular w/Solar Filter Caps Nitrogen Purged Gray

Cassini Porro Prism Binocular w/Solar Filter Caps Nitrogen Purged Gray. The C-1570SF is a member of the Astro Binocular Series featuring massive 70mm objectives and ample power and comes pre-packed with a binocular tripod and tripod adapter enabling steady hands-free viewing. A set of 2 Solar Filter Caps are included to safely view the sun. The C-1570SF is also a long eye relief binocular featuring 21mm of eye relief increasing the viewing comfort of all users. The prisms are positioned in a Porro prism design affording them increased depth perception over other binocular designs. Additionally the C-1570SF features fully multi-coated optics for improved glare reduction and further increased contrast & clarity water resistant comfort grip rubber armoring full range center focus and binocular tripod socket. Included with the Cassini C-1570 is a binocular tripod and tripod adapter carrying case neck strap lens cloth and protective eye caps. The Cassini C-1570SF features fully multi-coated optics for improved glare reduction and further increased contrast & clarity a 4.7mm Exit Pupil and exhibits a minimum focusing distance of 60?. Linear Field of View is 231? at 1000yds and Angular Field of View is 4.4. The Relative Brightness Index (RBI) is 21.78 and the Twilight Factor is 32.40. Interpupillary Distance (IPD) ranges from 59mm to 75mm and Eye Relief is 21mm. Specifications for Cassini 15 x 70mm Porro Prism Binocular: Manufacturer: Cassini Color: Gray Magnification: 15 x Objective Lens Diameter: 70 mm Prism System: Porro Prism Material: BK-7 Image Stabilizer: No Eye Relief: 21 mm Exit Pupil: 4.7 mm Field of View Linear: 231 ft at 1000 yds Field of View Angle: 4.4 degrees Optical Coating: Fully Coated Binoculars Focus System: Center Focus Twilight Factor: 32.4 Interpupillary Distance: 59 - 75 mm Close Focus: 16 m Diopter Adjustment Range: +/-5 dpt Weather Resistance: None Yes Water Resistance Level: Water Resistant Length: 11 in Weight: 4.5 oz Finish: Nitrogen Purged Fabric/Material: Rubber Package Type: Box Magnification Type: Fixed Features of Cassini 15 x 70mm Porro Prism Binocular A set of 2 Solar Filter Caps are included to safely view the sun Water Resistant Comfort Grip Rubber Armoring Binocular Table Top Pan Head Tripod Binocular Tripod Adapter Full Range Center Focus Fold Down Rubber Eye Guards Binocular Tripod Socket Carrying Case with Shoulder Strap Neck Strap Lens Cloth Package Contents: Cassini 15 x 70mm Porro Prism Binocular Carrying Case Neck Strap Lens Caps Solar Filter Caps Table-Top Tripod Tripod Adapter Cassini C-1570SF: 15 x 70mm Porro Prism Binocular w/ Solar Filter Caps Gray