Celestron 8X42mm Granite ED

$349.95

Availability: More on the way

These 8x42mm Celestron Granite ED fully-multicoated phase-corrected roof prism binoculars prove that you don't have to pay a king's ransom for optics that are fit for a king (or queen) . . .
Our Product #: C842GR
Celestron Product #: 71370
 

Product Description

This Celestron 8 x 42mm Granite ED roof prism binocular is designed for those who want a quality all-purpose binocular in today's most popular aperture/magnification combination, but don't want to pay a high price to get that quality. High price binoculars are waterproof and fogproof. So is the reasonably-priced Celestron 8x42mm Granite, which is O-ring sealed and nitrogen purged to shrug off unexpected summer showers and full downpours, just like high-end binoculars. High price binoculars use top quality BaK-4 roof prisms and multi-coated ED glass optics for good high contrast images with very good color fidelity. So does the reasonably-priced Celestron 8 x 42mm Granite ED.

The 8 x 42mm Granite's field is commendably flat, with images staying in focus from one side of the image to the other. Barrel distortion, the curving of straight lines at the edge of the field, is very modest and well controlled. There is a very small amount of chromatic aberration at the very edges of the field, but it is unnoticeable during most observing.

Is the Celestron Granite ED mechanically and optically the equal of the most expensive high end roof prism binoculars? Not quite. But it comes darn close at only a fraction the price.

Features of this binocular . . .

  • Roof prism optics. Open bridge H-body roof prism design with internal center focus. High quality BaK-4 prisms for unrestricted light transmission.
  • ED glass. ED (Extra-low Dispersion) glass is used in the objective lenses to deliver excellent edge-to-edge sharpness and color correction, while essentially eliminating chromatic aberration during every day use. The eco-friendly glasses used throughout this Celestron Granite binocular are lead and arsenic free.
  • Broadband multicoated optics. Fully coated on all air to glass optical surfaces with multiple layers of ion-deposited broadband antireflection materials for very high light transmission and contrast. With a 5.25mm exit pupil and 42mm objective lenses, the 8 x 42mm Granite is a bright binocular in twilight or low light situations.
  • Phase-coated high transmission prisms. The image-erecting roof prisms are made of high quality BaK-4 glass. The premium grade prisms allow for sharp images and high transmission multicoatings increase the light throughput to provide the brightest possible images. In addition, special phase-correcting coatings are applied to the roof prisms for peak contrast, color fidelity, and resolution. The resulting improvement is easily seen when looking for color and detail in the shadowed areas of a silhouetted or backlit bird.
  • Open bridge magnesium body. The open bridge body design allows the fingers of your hands to wrap naturally around the binocular body for a secure grip in all weather conditions, even when using a single-hand grip. The body is made of magnesium, which is both much lighter than aluminum and more rugged to absorb accidental abuse without flinching.
  • Waterproof and fogproof. Dry nitrogen filled and O-ring sealed to be waterproof and fogproof in all temperature and climate extremes. Designed to operate reliably in rain forests and deserts alike.
  • Armor. Black rubber armor absorbs noise and the bumps and thumps of everyday use and provides a good grip when wet. Thumb recesses and ridges where your fingers naturally fall assure a secure grip.
  • Wide field. The field of view is a wide 8.1° (426' at 1000 yards), excellent for an 8x binocular.
  • Twist-up eyecups and good eye relief. The eyecups (metal for long life, not flimsy plastic) are rubber-rimmed for comfort. They twist up to block ambient light and increase contrast for those who don't wear glasses. They retract for eyeglass or sunglass use. Click stops provide three distinct eyecup heights to let you match the individual eyecup height to your eyes. Eye relief is specified at 17mm, although it typically measures a mm or two less due to the recessed position of the eye lens (from where the eye relief is typically measured). This provides virtually unvignetted viewing for sunglass wearers or those who must wear eyeglasses when observing.
  • Eyepiece rainguard and lens covers. A rubber eyepiece rainguard is standard equipment, to keep eyepieces dry in sudden showers. It can be attached to the binocular neckstrap to hang down out of the way to one side when not in use, without danger of its getting lost. Tethered objective lens covers protect the optics during travel or storage. They flip off the optics and hang down under the binocular tubes to stay out of the way when not in use, but can be removed completely if so desired.
  • Close focusing. About two turns of the ribbed rubber focusing knob moves from a very good near focus of 6.5' out to the horizon and beyond. Shallow rubber ribs inset into the metal focus knob make it easy to turn the focus knob, regardless of the weather. A 6.5' close focus is excellent for woodland birding.
  • Rotary diopter correction. A continuously variable metal diopter ring on the right eyepiece allows you to match the binocular optics precisely to your individual eyesight for a sharp image.
  • Tripod adaptable. For extended no-hands observing, a protective cover on the front bridge unscrews, revealing a 1/4"-20 thread hole for mounting the Celestron 8 x 42mm Granite on an optional photo tripod using an optional tripod adapter #1187.
  • Standard accessories. A one and a half inch wide neoprene-padded neck strap for comfortable all-day use and a water-shedding lightly padded Cordura-style nylon and vinyl carrying case with a wide woven shoulder strap are standard equipment.
  • Free binocular harness. An unexpected but welcome no-charge bonus is a binocular harness that permits no-hands carrying of the binocular, in addition to taking the strain off your neck by distributing the weight of the binoculars to your shoulders and torso.

  • Tech Details

    Armored Yes
    Close Focus 6.5'
    Exit Pupil 5.25mm
    Eye Relief 17mm
    Field of view 8.1
    Field of view 1000 yards 426'
    Height 5.6"
    Interpupillary Distance 56-73mm
    Optical Type Roof Prism
    Relative Brightness 27.56
    Twilight Factor 18.33
    Weight 24 oz.
    Warranty Limited Lifetime

    Reviews

    Review by:
    I found myself using these 8x42’s for sweeping Milky Way views from a dark sky site at this years GSSP. They were the perfect companions to a 18x50 Canon IS Bino. (Posted on 8/28/2019)
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    Supplied Accessories

    • Soft case
    • Woven case strap
    • Wide neoprene-padded neck strap
    • Shoulder harness
    • Objective lens covers
    • Eyepiece rainguard

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