Eyeskey Grampus-HD 8X42 Binoculars
Rated 3.5/5 based on 11 customer reviews

Eyeskey Grampus-HD 8X42 Binoculars

  • BAK4 Roof Prisms
  • Fully Multi-Coated Optics
  • Nitrogen-Filled, Water and Fogproof
  • Wide 58° apparent angle of view
  • Order within
Available: In Stock
$79.99 $99.99

Overview

The Grampus 8x42 Binocular features BAK4 prisms and fully multi-coated optics to create a versatile and capable optic that produces bright and clear images with accurate color rendition. Coupled with the optical features are 42mm diameter objectives which give the binocular very competent low-light performance while keeping the magnification at a modest 8x helps to limit the most visible hand-shake and allows for a wider field of view versus higher-power binoculars. This combination of magnification, optics, objectives, plus a wide viewing angle makes the Grampus ideally suited for most outdoor activities from hunting, to birding, to boating and sporting events.

Complementing the optical performance are construction details that make the binocular durable and comfortable to use. The whole optic is protected by durable armor that is textured to give it a non-slip grip especially in cold and wet conditions. The optical tubes are nitrogen-filled and O-ring sealed to be water and fog proof - especially when moving from one extreme temperature to another. A right-eye diopter adjustment allows the binocular to be customized to most people's needs, and its twist-up eyecups mean it can be comfortably used with or without eyewear. For long-term observational sessions, the Grampus can be mounted on a tripod or other support system using an optional adapter.


Optical Performance

  • 8x magnification
  • 42mm objective lenses
  • Compact BAK4 roof prisms
  • Fully multi-coated optics improve light transmission, increase contrast, and produce true color fidelity
  • 388' field of view at 1000 yards

Use and Handling

  • Closed bridge configuration
  • Large textured center focus wheel
  • Right-eye dioptric correction
  • Twist-up eyecups for use with or without eyewear
  • Tripod mountable with optional adapter
  • Comfortable 17.5mm eye relief
  • Wide 5.2mm 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: 23.6 ounces

Overview

The Grampus 8x42 Binocular features BAK4 prisms and fully multi-coated optics to create a versatile and capable optic that produces bright and clear images with accurate color rendition. Coupled with the optical features are 42mm diameter objectives which give the binocular very competent low-light performance while keeping the magnification at a modest 8x helps to limit the most visible hand-shake and allows for a wider field of view versus higher-power binoculars. This combination of magnification, optics, objectives, plus a wide viewing angle makes the Grampus ideally suited for most outdoor activities from hunting, to birding, to boating and sporting events.

Complementing the optical performance are construction details that make the binocular durable and comfortable to use. The whole optic is protected by durable armor that is textured to give it a non-slip grip especially in cold and wet conditions. The optical tubes are nitrogen-filled and O-ring sealed to be water and fog proof - especially when moving from one extreme temperature to another. A right-eye diopter adjustment allows the binocular to be customized to most people's needs, and its twist-up eyecups mean it can be comfortably used with or without eyewear. For long-term observational sessions, the Grampus can be mounted on a tripod or other support system using an optional adapter.


Optical Performance

  • 8x magnification
  • 42mm objective lenses
  • Compact BAK4 roof prisms
  • Fully multi-coated optics improve light transmission, increase contrast, and produce true color fidelity
  • 388' field of view at 1000 yards

Use and Handling

  • Closed bridge configuration
  • Large textured center focus wheel
  • Right-eye dioptric correction
  • Twist-up eyecups for use with or without eyewear
  • Tripod mountable with optional adapter
  • Comfortable 17.5mm eye relief
  • Wide 5.2mm 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: 23.6 ounces

General

Prism Type

Roof (BAK4)
Number of Lenses 8 Pieces 6 Groups
Prism Coating Phase-correction Coating
Lens Coating Fully Multi-coatings
Eyecup Type Twist-up/down, 2-click, PVC
Chassis Material PPS
Weight 23.6 oz / 670 g

Performance

Magnification 10x
Objective Lens Diameter 42 mm
Eyepiece Lens Diameter 22 mm
Angle of View 7.4° (Actual)
Field of View 388' @ 1000 yd / 129 m @ 1000 m
Minimum Focus Distance 6.56' / 2 m
Relative Brightness 27.04
Twilight Index 18.33
Resolution 5.6"
Exit Pupil Diameter 5.2 mm
Eye Relief 17.5 mm
Diopter Adjustment Yes
Focus Type Center
Interpupillary Distance 56~74 mm

Features

Fogproof Yes, Nitrogen Filled
Waterproof Yes, O-ring Sealed (1 m /30 min)

Packaging Info

Package Weight 2.1 lb
Box Dimensions (LxWxH) 7.598 x 6.771 x 2.047"



How long does delivery take?

Normally, 3-5 business days. (Due to global COVID-19 restrictions, there may be service interruptions with some shipments causing delays, we would like to assure you that Eyeskey’s services team will be fully operational to solve the problem you may have.)


 

What countries do you ship to?

We currently ship everywhere in the U.S., including Alaska and Hawaii. We currently do not ship internationally for orders placed online.


 

Outside the U.S.?

Send us an email at service@eyeskeyoptics.com or message us on Facebook to let us know what country you'd like us to ship to, we will arrange a special shipment for you if possible.


 

How will my delivery be shipped?

Amazon functions as our logistics partner to ship out Eyeskey products. They will choose the carrier that they think works best for our customers.


 

I ordered more than one item. Will they all be delivered at the same time?

We try to make sure all your items reach you at the same time. Sometimes our products are not always sent together since different shipping options can be used, depending on the product. Once an item has been shipped, you will receive a shipment notification email.


 

Can I change the delivery address of my package after it has been shipped out?

Unfortunately, we cannot change the shipment once the product is en route.


 

What do I need to do when I received a different product than what I ordered?

Please contact customer support at service@eyeskeyoptics.com.

Customer Reviews

Based on 1 review
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Great all purpose binos!