
Nikon has earned a remarkable reputation for manufacturing top-notch optics, and their Nikon Action Ex Extreme 8×40 binoculars are a testament to their commitment to quality. These binoculars are specifically designed to deliver outstanding clarity and performance, making them a popular choice among nature enthusiasts, birdwatchers, hunters, and outdoor adventurers.
In this comprehensive article, we will conduct an in-depth review of the Nikon Action Ex Extreme 8×40 binoculars, emphasizing the key features, specifications, advantages and disadvantages, as well as their primary applications. Our aim is to help you make an informed decision when selecting a pair of binoculars that perfectly suits your outdoor pursuits.
Currently, you can pick up a pair of the Action Ex Extreme’s for an absolute bargain.
- Waterproof, fogproof, and shockproof performance
- All-metal chassis in lightweight polycarbonate shell
- Rubber-coated body for firm, non-slip grip
- Magnification: 8x
- Objective lens: 40mm
With precision-aligned optics, and multicoated prisms for low light optimization, these binoculars are ideal for all conditions and both dawn and desk.
Combine these features with Nikon’s 25-year limited warranty, you can rest assured that these are a solid piece of equipment.
Nikon Action Ex Extreme Video Review – Watch Below
Are the Nikon 7238 Action Ex Extreme 8×40 Binoculars comparable to other models in their price category? And, what distinguishes this product from others in the same price range?
In this article, we’ll perform a detailed review of these Nikon Extreme Binoculars, where we’ll delve into their key characteristics, benefits, and drawbacks to help you make an informed buying decision.
Nikon Action Ex Extreme Binoculars Specifications






Main Usage For The Nikon Action Ex Extreme 8×40 Binoculars
The Nikon Action Ex Extreme 8×40 Binoculars are well-suited for a range of outdoor activities. They are particularly ideal for birdwatching and hunting, providing excellent clarity and a wide field of view. These binoculars can also be used for attending concerts or sports games, offering a closer view of the action.
While they may perform slightly less effectively in low-light conditions, they still offer decent performance in twilight or dusk situations.
To make the most of these binoculars, use proper hand-holding techniques, adjust the focus and diopter settings, and take advantage of their durable and weatherproof design for outdoor adventures.

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Glass/Lens
The Nikon Action Ex Extreme 8×40 Binoculars feature high-quality glass and lenses, as well as prisms, contributing to their excellent optical performance. The lenses incorporate multiple layers of anti-reflective coatings to enhance light transmission, resulting in clear and vibrant images. The Eco-Glass used in these binoculars is lead- and arsenic-free, making them environmentally friendly2.
The binoculars employ Porro prisms, which are known for providing greater depth perception and a wider field of view. This allows users to observe a larger area without having to move the binoculars as much. The prisms of the Nikon Action Ex Extreme 8×40 Binoculars are also coated with phase correction coatings, which help to enhance image resolution and contrast.
Pros:
- Exceptional optical performance with high-quality glass and lenses.
- Multi-layered anti-reflective coatings improve light transmission and image clarity.
- Eco-Glass construction promotes environmental friendliness.
- Porro prisms offer a wider field of view and better depth perception.
- Phase correction coatings on prisms enhance image resolution and contrast.
Cons:
- These binoculars might not perform optimally in extremely low-light conditions compared to some higher-end models.
- They may be slightly heavier and bulkier compared to compact binoculars, which could affect portability for some users.
Overall, the Nikon Action Ex Extreme 8×40 Binoculars offer excellent optical performance and a wide range of features considering their price range. They are a popular choice for outdoor enthusiasts seeking reliable and high-quality binoculars for various activities.
Magnification
These Nikon binoculars offer an 8x magnification level over a 40mm objective lens.These create an excellent wide field of view, that is perfect for viewing a large area, with ample magnification to bring detail into focus.
With a smooth central focusing knob, you can easily keep your points of interest in focus, delivering and optimal viewing experience.
Image Quality
The image quality of the Action Ex Extreme binoculars is surprisingly high.Precision-aligned optics with dielectric high-reflective multilayer prism coatings ensure delivery of brighter and sharper colors, as well as drastically improving low-light performance.
There’s also a convenient quick, smooth central focusing knob as well a diopter control to regulate vision imbalance.
All these factors combine to create an image quality far above the recommended retail price.
Eye Relief
The Nikon Action Ex Extreme 8×40 Binoculars offer an eye relief of 17.2mm, a measurement that refers to the distance between the ocular lens and your eye. This generous eye relief ensures a comfortable viewing experience, particularly for eyeglass wearers. With an eye relief of 17.2mm, these binoculars should provide adequate space for eyeglasses, allowing users to enjoy clear and immersive views.
However, individual preferences and the specific eyeglass prescription can vary, so it is always recommended to try using the binoculars with your own glasses to ensure the best fit and vision.
Pros & Cons of the Nikon Action Ex Extreme 8×40 Binoculars
Based on customer reviews and feedback, here are some common likes and dislikes about the Nikon Action Ex Extreme 8×40 Binoculars:
Likes:
- Image quality: Many users appreciate the clear and sharp image quality provided by these binoculars, especially considering their affordable price point.
- Durability: Users find these binoculars to be sturdy and well-built, able to withstand various outdoor conditions.
- Low-light performance: The binoculars are often praised for their ability to gather enough light in low-light situations, making them suitable for activities like stargazing or wildlife observation at dusk or dawn.
- Wide field of view: The wide field of view (FOV) allows users to easily observe moving objects or panoramic views without needing to constantly adjust the binoculars.
Dislikes:
- Weight: Some users find these binoculars to be slightly heavy, which may cause fatigue during extended use.
- Eye caps: Several users have mentioned that the eye caps could be more securely attached, as they tend to fall off or get lost easily.
- Focus adjustment: A few users have stated that the focus knob can be slightly stiff and requires some effort to adjust precisely.
- It is important to note that these likes and dislikes are subjective and may vary from person to person. It is always recommended to read multiple reviews and consider your specific needs and preferences before making a purchase decision.
In conclusion, this is a more than capable pair of binoculars for the beginner right up to the upper intermediary binocular users. Ideal for bird watching, and durable enough to take on the more active of hikes.
With excellent image quality and exceptional performance in less-than-ideal lighting conditions, these binoculars have a lot to offer. As usual, though, this pair is not without fault. In this case, where much of the build is rugged and durable, the eyecups are flimsy and may come off along with the lens caps.
This is important, as the eye cups really govern the comfort felt when using the binoculars. However, if you are willing to take a risk on this pair of binoculars, you will be repaid in image quality and low-light performance.
Try These Nikon Action Ex Extreme 8×40 Binoculars
- Items Include: Nikon 12×42 Monarch M5 Binoculars | Waterproof, Fogproof, High-Power Outdoor Optics, Sling Backpack, LED Flashlight, Deluxe Cleaning Kit, Suspender Harness, Cap Keeper
- See farther and clearer with Nikon’s Monarch M5, offering an impressive 12x zoom to help you track distant subjects with ease. The 42 mm objective lenses gather ample light, delivering bright, sharp images even in challenging lighting conditions. Ideal for hunters, bird watchers, and nature lovers who require long-range detail without sacrificing portability.
- Built for the outdoors, the Monarch M5 features a waterproof and nitrogen-filled body to prevent internal fogging in rapidly changing weather. The rubber-armored housing ensures a secure grip and superior shock resistance, while the streamlined design fits comfortably in your hands for extended viewing sessions.
- Every Monarch M5 binocular is equipped with Nikon’s ED glass to correct chromatic aberration and reduce color fringing, ensuring sharper images and richer color fidelity. Enjoy enhanced contrast and detail across the entire visual field—perfect for birdwatching during sunrise or tracking game during twilight.
- Despite their powerful optics, the Monarch M5 12×42 remains lightweight and balanced—perfect for travel, backpacking, and extended use. Included are a soft carrying case, neck strap, and lens covers to protect your investment.
- Exceptional Image Clarity: Features Extra-low Dispersion (ED) glass and multilayer coatings for bright, high-resolution, true-to-life viewing.
- Wide Field of View: Field Flattener Lens System delivers sharp images across the entire frame; 8.3 degrees (8×30) and 6.9 degrees (10×30) field of view.
- Compact and Lightweight Build: Magnesium alloy construction reduces weight while providing durability and easy handling for all-day use.
- Rugged, All-Weather Performance: Waterproof, fogproof, and scratch-resistant lenses ensure reliable use in extreme conditions up to 16,000 feet altitude.
- Secure and Customizable Focus: Locking diopter adjustment ring allows you to set and maintain personalized focus with confidence.
- Compact and Lightweight Design: Easily fits in the palm of your hand for convenient portability.
- Multicoated Optics: Delivers bright, clear images with enhanced contrast and accurate color.
- Eco-Friendly Glass: Constructed without lead or arsenic for environmentally conscious use.
- Comfortable Operation: Features a low-profile focus wheel and right-eye dioptric correction.
- Stylish and Secure Grip: Sleek design offers a modern look and a solid, comfortable feel.
- Bright and Clear Views: 8x magnification with 40mm objective lenses deliver sharp, detailed images and excellent low-light performance.
- Rugged and Weatherproof: Waterproof, fogproof, and nitrogen-filled with rubber-armored body to withstand harsh outdoor conditions.
- High-Quality Optics: Traditional Porro prism design with fully multi-coated BAK4 glass ensures crisp, color-accurate images and a wide field of view.
- Comfortable and Easy to Use: Large center focus knob, adjustable diopter, twist-up eyecups with long eye relief for extended, comfortable viewing.
- Convenient Outdoor Features: Tethered ocular rainguard and clip-on objective lens caps prevent water damage and loss during active use.
- Powerful and Compact: 10x magnification with 30mm objective lenses delivers crisp, detailed views in a lightweight, travel-ready design.
- Advanced Optical Coatings: Multilayer lens coatings & dielectric prism coatings ensure bright, high-contrast images with accurate color.
- Built for the Outdoors: Waterproof, fogproof & rubber-armored for reliable performance in all weather conditions.
- Comfortable Viewing: Wide 6.6 degrees field of view, 15.4mm eye relief & locking diopter provide easy, strain-free use for all users.
- Ready to Go: Includes lens caps, soft case, neck strap & backed by Nikon’s Limited Lifetime Warranty.