Hawke Sport Optics 8x25 Sapphire ED Binocular (Black)

Hawke Sport Optics 8x25 Sapphire ED Binocular (Black)

Hawke Sport Optics 8x25 Sapphire ED Binocular (Black)

B&H # HA8X25 MFR # 39100
Hawke Sport Optics 8x25 Sapphire ED Binocular (Black)

Hawke Sport Optics 8x25 Sapphire ED Binocular (Black)

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Product Highlights

  • Extra Low-Dispersion Glass Objectives
  • Phase-Corrected BAK4 Roof Prisms
  • Silver Prism Mirrors Enhance Clarity
  • Fully Multi-Coated Optics
  • Apparent Angle of View: 54°
  • Nitrogen-Filled, Water & Fogproof
  • Compact Twin-Hinge Design
  • Magnesium Alloy Chassis
  • Center Focusing
  • Twist-Up Eyecups
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Hawke Sport Optics 39100 overview

  • 1Description

Combining a compact twin-hinge design with superior optical performance, the black 8x25 Sapphire ED Binocular from Hawke is ideal to take with you while travelling, outdoors, or on urban exploration trips. The optics feature high-performance Extra-Low Dispersion (ED) glass to deliver crisp, true-color images of breathtaking landscapes, vistas, or cityscapes. With the fully multi-coated optics and high-resolution (Hi-Res) Silver Mirror BAK4 Roof Prisms with phase-corrected coating, you will get you exceptional transmission, clarity, resolution, and image contrast. And whether you focus on a close-up or faraway scenery, you can count on the wide 54° apparent angle of view to deliver a sizeable edge-to-edge field. Beyond optical highlights, the binocular provides a convenient center focusing and a diopter ring on the right tube, generous interpupillary range, and a short 5.2' minimum focus distance.

With its ultra-lightweight and durable magnesium housing, you do not have to worry about accidentally exposing the binocular to moisture or even dropping it into a water reservoir because it is waterproof and nitrogen-purged fogproof. The body features an aesthetically-appealing and ergonomic design. Its leatherette covering offers a secure hold and a pleasant handling experience. To help you with focusing and correcting for dioptric differences, the oversized focus knob and the diopter ring are knurled and can be easily adjustable even when wearing gloves. To accommodate anyone with a comfortable viewing position, the rubber eyecups feature a twist-out click-stop design. Also included are a strap, lens cloth, carry case, and protective lens caps.

Optical Performance

  • Extra-Low Dispersion (ED) glass offers true color, and improved clarity and detail
  • Silver Mirror BAK4 Roof Prisms with phase-corrected coatings provide superior image clarity, contrast, and resolution
  • Fully multi-coated optics enhance transmission, image brightness, and sharpness
  • Water-repellent coating protects objective lenses and helps keep them clean
  • Apparent angle of view: 54°

Use and Handling

  • Center focusing adjustment
  • Diopter adjustment on the right ocular
  • Interpupillary range: 37-75mm
  • Eye relief: 15mm


  • Compact body design
  • Ultra-light and durable magnesium alloy chassis with soft rubberized covering
  • Leatherette armoring near the bridge provides a pleasant secure grip
  • Oversized knurled center focus knob and diopter ring
  • Twist-up rubber eyecups with click-stops
  • Compact twin-hinge configuration
  • Nitrogen-filled, water and fogproof
  • Length: 4"
  • Weight: 8.5 oz 

Hawke Sport Optics 39100 specs

Prism Type Roof
Magnification 8x
Objective Lens Diameter 25 mm
Angle of View 6.8° (Actual)
Field of View 357.0' @ 1000 yd / 119.0 m @ 1000 m
Minimum Focus Distance 5.2' / 1.6 m
Exit Pupil Diameter 3.125 mm
Eye Relief 15 mm
Interpupillary Adjustment 37.0 to 75.0 mm / 1.5 to 3.0"
Focus Type Center
Tripod Mount None
Dimensions 4.1 x 4.0" / 103.0 x 101.0 mm
Weight 8.5 oz / 241.0 g
Packaging Info
Package Weight 1.1 lb
Box Dimensions (LxWxH) 5.9 x 4.1 x 2.6"

Hawke Sport Optics 39100 reviews

8x25 Sapphire ED Binocular (Black) is rated 4.5 out of 5 by 2.
Rated 4 out of 5 by from A bit pricey, but good quality. Bought this specifically for backcountry canoe expeditions, needing something small and light. I'm not a binocular connoisseur, so my review might not be detailed as some want. They seem to be good quality with a nice clear image. I haven't travelled with them yet, but I do anticipate a couple minor problems specific to the rough & tumble nature of back-country travel). The caps will definitely get lost at some point - I wish there was a thin lanyard for each of these. The case has a magnetic closure vs a metal snap, and it doesn't seem very secure. These are bit expensive for what you get, possibly attributed to the fact they're imported from Britain (I think).
Date published: 2016-11-26
Rated 5 out of 5 by from Great Niche Product I bought these binoculars to be a lightweight easy to carry alternative to my 8x42 Vortex Razer HD ($1199.99 B&H) for things like backpacking and visiting a city where I might use them sporadically. Keep in mind I am comparing them to binoculars that cost six times more but more important have an objective lens with almost three times the surface area of the Hawkes. While I have used many full sized binoculars in all price ranges, and my previous binocular was a Vanguard Endeavor ED 1045, the only compact binoculars I have used were an old $50 pair of Nikons my friend lost a few months ago. Review: 1. They totally deliver on being small and lightweight. 2. The Hawkes have good edge to edge clarity. 3. The field of view is almost as much as the Razers. 4. I am favorably impressed with the color accuracy. 5. The biggest downside is brightness and contrast (I am not explaining why I am combining these). The question to be fair is, Do they have good brightness and contrast considering the objective lens has 35% of the surface area of the Razers? I am guessing here, but I think the answer is yes. 6. The binoculars are much less forgiving in regards to interpupillary distance. I suspect this is due to the ocular lenses being so small. I do not know how the size of the ocular lenses compare to other 8x25 binoculars (they are roughly slightly bigger than my old Nikons). 7. I read somewhere they have a half stop on the eye cups. They do not. 8. They do easily fit in my casual pants pockets. Random thoughts: 1. I don't know how I feel about the double hinge design. It does allow them to be folded smaller but it also makes setting the interpupillary distance trickier. 2. Having a separate knob to focus the diopters, while convenient, seems like bad idea since I would think I would easily inadvertently change the setting. But so far so good. 3. The eye cups are not tethered. I am not dinging them for this since I do not see how to make that work on binoculars like these. 4. Just a warning these are very small. I wear extra-large gloves, but if I had hands the size of my father these would be too small. 5. They have no armor. This makes them both cheaper and lighter, but they feel small in the hands and are more susceptible to banging. 6. I don't know, but at this price I really doubt these have the super protective coatings found on high end binoculars. Be nice to the lenses. Conclusion: If you are thinking about buying only one pair of binoculars, get something bigger. If you want a pair of very easy to carry binoculars with good image quality to supplement heavier pair binoculars, get these.
Date published: 2017-05-26
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