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Eyeskey Seeker-Pro 8X25 Monocular


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● Compact BAK4 Roof Prisms
● Fully Multi-Coated Lenses
● Nitrogen Filled, Water and Fogproof
● Lightweight Polycarbonate Chassis


Palm-sized and protected in black rubber armor, the 10x25 HD Monocular from Eyeskey Optics offers genuine quality and value for anyone interested in owning and using a pocket monocular, it is suited to birding, hiking, hunting, travel, sightseeing, concerts, sports, theater – anywhere you want a good look at distant details. For that matter, with its close-focus distance of just 16.4 feet, the monocular gives you a good look at nearby objects, too.

It has fully multi-coated lenses for better light transmission, O-ring seals to prevent moisture and dust from getting inside, and is Nitrogen gas-filled to prevent fogging. The twist-up eyecup and 14.5mm eye relief make this monocular comfortable for people who wear eyeglasses. And with its compact size, it's easy to pack in a pocket, purse, bag, or glove box.

Optical Performance

  • 8x magnification
  • 25mm objective lenses
  • Roof prism for a compact form factor
  • Fully multi-coated optics improve light transmission, increase contrast, and produce true color fidelity
  • 373.1' field of view at 1000 yards

Use and Handling

  • Easy focusing collar around the eyepiece
  • Twist-down eyecup for a full field of view when wearing eyeglasses
  • Comfortable 14.5mm eye relief
  • 3.1mm exit pupil

Construction Details

  • Environmentally-friendly lead-free glass
  • Nitrogen-filled for water and fog-proof performance - even with extreme temperature variations
  • Durable armoring provides a slip-resistant grip
  • Weight: 5.64 ounces

Prism Type Roof (BAK4)
Number of Lenses 8 Pieces 6 Groups
Objective Lens Type HD Glass
Prism Coating MgF2 Coated
Lens Coating Fully Multi-Coatings
Eyecup Type Twist-up/down
Chassis Material PPS
Weight 5.78 oz / 164 g
Magnification 8 X
Objective Lens Diameter 25 mm
Eyepiece Lens Diameter 20 mm
Angle of View 7.1° (Actual)
Field of View 374' @ 1000 yd / 125 m @ 1000 m
Minimum Focus Distance 19.69' / 6 m
Relative Brightness 9.61
Twilight Index 14.14
Exit Pupil Diameter 3.1 mm
Eye Relief 14.5 mm
Focus Type Manually
Fogproof Yes, Nitrogen Filled
Waterproof/b> Yes, O-ring Sealed (1 m /30 min)
Packaging Info
Package Weight 0.48 lb
Box Dimensions (LxWxH) 5.433"x 2.756"x 2.362"
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Eyeskey Seeker-Pro 8X25 Monocular