Nikon 10x50 Action EX Extreme, Water Proof Porro Prism Binocular with 6.5 Degree Angle of View, U.S.A.

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List Price: $260.95

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About Nikon 10x50 Porro Prism

Nikon's Action EX, Extreme All Terrain Binoculars are designed to appeal to optics users who value tough construction and reliable optical performance under even the most extreme conditions.

The Nikon Extreme binoculars feature an all-metal chassis with lens fittings housed in a tough, lightweight polycarbonate body shell. Like all Nikon All Terrain Binoculars, the EX is nitrogen-filled and O-ring sealed for total waterproof, fogproof and shockproof performance in any environment. The binocular is ergonomically shaped, tripod adaptable and rubber coated for a non-slip grip, whether wet or dry.

The new Extreme ATB offerings utilize high-resolution lenses and prism systems crafted from Nikon's exclusive Eco-Glass, which is made without the use of arsenic or lead. This lens system provides an extremely clear, distortion-free image over the entire field of view. The lens elements each incorporate multi-layered anti-reflective coatings formulated to deliver optimum brightness, high contrast, true color rendition and flare-free viewing in most lighting conditions.

The Action EX series binoculars each feature a unique, click-stop eyecup design that not only delivers long eye relief, but also allows for variable eye relief that is customizable to the user's own eyes and eyeglasses. The binoculars are central focus with a diopter control to correct for normal right/left eye vision imbalance.

Each model is covered by Nikon's 25-year Limited Warranty, as well as Nikon's exclusive No Fault Repair/Replacement Policy.

The Nikon 10x50 Porro Prism is commonly used for Bird watching, Hunting, Sporting events/concerts, Wildlife viewing and more.The Nikon 10x50 Porro Prism is most used by customers who consider themselves to be a Casual/ recreational among others.The Nikon 10x50 Porro Prism is popular because customers like the following qualities of the Nikon 10x50 Porro Prism: Close focus, Quality lenses, Strong construction, Waterproof and Works well with glasses

Summary of Customer Reviews

Customers most agreed on the following attributes:
Quality lenses (15),Strong construction (13),Waterproof (11),Works well with glasses (7),Close focus (6)
Heavy (5),Heavy / bulky (3)
Best Uses:
Bird watching (9),Wildlife viewing (9),Sporting events/concerts (6),Hunting (4),Astronomy (3)
Reviewer Profile:
Casual/ recreational (15)

Nikon 10x50 Porro Prism Features

  • Rugged Waterproof, Fogproof construction
  • Rubber armor for sure grip
  • Bright, multicoated optics
  • Turn-and-Slide Rubber Eyecups
  • Long eye relief for eyeglass wearers
  • Quick central focusing
  • Diopter control for strain-free viewing
  • BaK4 High Index Prisms
  • Includes neck strap and case
  • 25-Year Limited NIKON Warranty

Nikon 10x50 Porro Prism Specifications

Type of Prism
Real Angular Field of View
6.5 Degree
Apparent Angle: 65
Field of View at 1000 Yards
(113.54 m @ 1000 m)
Exit Pupil
Eye Relief
Relative Brightness
Close Focus Distance (ft)
7 meters / 22.97 ft
Rubber Coated (Armored)
Rubber Coated
Waterproof / Fogproof
Yes / Yes
L x W: 178 x 196mm / 7.00 x 7.71 in
1020g / 2.24 lb

Nikon 10x50 Porro Prism Reviews

Review Snapshot®


(based on 16 reviews)


of respondents would recommend this to a friend.

Ratings Distribution

  • 5 Stars



  • 4 Stars



  • 3 Stars



  • 2 Stars



  • 1 Stars



Most Liked Positive Review


Bang for the Buck!

Bright, sharp and clear. Very well-constructed and excellent handling. Great for general use when a 7x or 8x is not enough.

Reviewed by 16 customers


Nikon Binocs


from VB VA  -  Casual/ Recreational

Great quality at an affordable price.


Exccellent Binoculars


from Colorado Springs, CO  -  Casual/ Recreational

Great binoculars! Crystal clear optics, like all Nikon glass. I have Nikon lenses for my D200 and Nikon scopes on my firearms, so I knew I would be getting a quality product. Adoramas price was unbeatable and the shipping was very quick.


Great bang for your buck


from Tucson, AZ  -  Casual/ Recreational

I just got these and I'm extremely happy with how they feel in your hands. They are well-balanced, easy to hold, and the rubber coating gives you a good grip. I love the twist and click eyecups and the tripod socket. Views are sharp and bright and I also like the wide field of view. These are a winner!


Good deal


from danville,ca  -  Casual/ Recreational

Great optics for the price,I was afraid they would be to heavy,not at all for 10 by 50


A Nikon quality product


from Marysville, MI  -  Casual/ Recreational

I live on a Great Lakes north, south bird migration route. It's a flyway for bird watching, I can identify them easily with the clarity and brightness of these NIkon binoculars. I also work on lake freighters and they work great in that environment. I haven't had to use the "waterproof" feature yet. I hope I never have to test that feature. I'm sure they'd be fine. I just wouldn't want to drop them off the ship and watch my "waterproof" Nikon binoculars float peacefully off into the sunset. I wasn't sure about the handheld stability with the 10X50 lens power, but I haven't had problem at all with it. I think the clarity and brightness of the lens make up for any stability issue.


Nikon 10x50 Action EX Extreme


from Santo Domingo, Dominican Republic  -  Professional Guide

I use it for Search and Rescue at sea. I´m the Executive Director of the Dominican Naval Auxiliary and this is a useful tool for my job.


Great binoculars


from Houston, TX  -  Casual/ Recreational

My first 10x binoculars. The far field view is excellent. It's kinda heavy and may be hard to hold for a long period. The construction is solid and feels good.


Fantastic Binoculars


from Sulphur, OK  -  Casual/ Recreational

These are very well made binoculars. They have extremely clear optics, especially compared to lesser priced brands.

(1 of 1 customers found this review helpful)


Excellent Glass! and Rugged!


from Salem, SC  -  Casual/ Recreational

They are larger than other 10X50 binoculars I have, But they are far superior in image quality, and build quality as well. I own a D7000 camera and have pretty high expectations from my Nikon equipment. These binoculars do not disappoint.


great beginner binos


from Hudson County, New Jersey  -  Casual/ Recreational

For the size I was suprised of it's light weight. Viewing stars in light polutted area was ok for me as a beginner. Bird watching is the best. The quality of the lenses and crisp viewing is excellent


Questions & Answers Powered by TurnTo®

Questions about this item:

Shopper  Why Did You Choose This?
LARRY W  Great binos for a good price. Just love them.
Rita T  what is the weight of these binoculars?
JACK W  They weigh 2 pounds 3 oz
Shopper  what is the country of origin ?
DOUGLAS S  I would assume a Nikon product is Japanese in origin but the box says "Made in China" in tiny print on the bottom.
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