Nikon 7x50 ProStar, Water Proof Porro Prism Astronomy Binocular with 7.3 Degree Angle of View, U.S.A.

SKU: NK750SP MFR: 8207
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About the Nikon 7x50 ProStar

The 7x50 Prostar was evaluated by Astronomy Magazine's Richard Berry as the conoiseurs' astronomy binocular.

Provides a 7.1mm exit pupil, high quality lens glass and full multicoating for the ultimate in low light viewing and optical versatility.

Nikon's astronomy binoculars use durable, all-metal construction and O-ring sealed nitrogen filled tubes for waterproof, shockproof and fogproof performance, and a unique "pebbled" surface to provide ergonomic viewing.

Each of the three models utilizes top of the line, coma-corrected lenses and Nikon's exclusive Special Purpose (SP) glass for flare-free pin point image clarity. The glass is specially ground and polished to eliminate surface aberrations and provide crisp, clear resolution and the highest possible light transmission. The lenses and prisms are coated with multiple layers of Nikon's proprietary anti-reflective lens coatings to improve light transmission, enhance color rendition, and provide flare-free viewing. In each binocular, the power is designed to complement a large objective lens delivering the perfect balance of resolution and generous exit pupil.

The 7x50 Prostar measures 8.5" x 8.1" and weighs 48.3 ounces. The Nikon 7x50 Prostar has a field of view of 383' at 1,000 yards and an exit pupil of 7.1mm. It is tripod adaptable for steady, detailed observation.

Nikon 7x50 ProStar Includes

  • lens covers (2)
  • Eyepiece Covers (2)
  • Angled Eyecups (2)
  • Binocular Strap
  • Binocular case
  • Case Strap
  • Nikon 25 Year Warranty
  • Lifetime $10.00 No-Fault Repair/Replacement Policy

Summary of Customer Reviews

Customers most agreed on the following attributes:
Reviewer Profile:
Casual/ recreational (1)

Nikon 7x50 ProStar Features

  • All metal construction for durability
  • Nikon's superior technology
  • BaK4 high index prisms
  • 100% Waterproof/Fogproof
  • Special Performance (SP) glass
  • Individual eye focus
  • Tripod adaptable
  • High resolution, fully multicoated optics, coma corrected

Nikon 7x50 ProStar Specifications

Type of Prism Porro Bak4 prism
Coating Fully Multi-Coated
Real Angular Field of View 7.3°
Field of View at 1000 Yards 383'
Exit Pupil 7.1 mm
Eye Relief 15 mm
Relative Brightness 50.4
Twilight Factor 18.7
Close Focus Distance (ft) 40.4'
Rubber Coated (Armored) No
Waterproof / Fogproof Yes
Camera Tripod Adaptable Yes w/ #7806
Dimensions L x W 8.5" x 8.4"
Weight 48.3 oz.
Special Features Special Performance (SP) glass
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