Nikon website says these are porro prism binoculars but Bill O (below in answered questions) says they are roof prisms. Which is it?

Roof prisms vs Porro prismsPorro prism binoculars were standard until the 1960's, when the Zeiss and Leitz companies introduced roof prism binoculars, whose objective lenses were straight in line with the eyepieces. Roof prism binoculars were compact, light, and comfortable to hold. They made the offset, zig-zag shape of the Porro prism design look as old fashioned as propeller-driven aircraft.Porro prism design has a jog in the light path through each barrel. Roof prism design looks as if the light goes straight through.

My eyes are not of equal strength. Does this model have a good range of compensation?

Yes, for each eye you can regulate, very good view

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Nikon 7239 Action 7x50 EX Extreme All-Terain Binocular

Nikon 7239 Action 7x50 EX Extreme All-Terain Binocular

Product ID: 75969831

Details

Age Range (Description)
Adult
Brand
Nikon
Magnification Maximum
7
Objective Lens Diameter
50 Millimeters
Special Feature
Eco-Friendly

💧Waterproof & fogproof for all-weather use

🔭7x magnification for crisp distant views

🛠️Center focus with tripod mount for stability

€ 398.07

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Description

🔎 See More, Miss Less – Elevate Your Outdoor Experience!

TRIPOD READY STABILITY - Integrated tripod adapter threading for hands-free, extended glassing sessions.
COMFORT FIRST EYE RELIEF - 17mm eye relief with turn-and-slide rubber eyecups for all-day viewing comfort.
WIDE 50 MM OBJECTIVE LENS - Maximizes light intake for bright, vivid views even in low light conditions.
ALL TERRAIN WATERPROOF DESIGN - Nitrogen-filled, fogproof, and rubber-armored to brave any outdoor adventure.
CRYSTAL CLEAR 7 X MAGNIFICATION - Perfectly balanced zoom for sharp, stable images without eye strain.

The Nikon 7239 Action 7x50 EX Extreme All-Terrain Binocular combines rugged waterproof construction with eco-friendly BAK4 Porro prisms and fully multicoated optics. Designed for professionals and enthusiasts alike, it offers a bright 7x magnification with a wide 50mm objective lens and 17mm eye relief, ensuring clear, stable views in diverse environments. Its center focus and tripod mount make it ideal for extended use, whether on a safari, boating, or sports watching.

Specifications

ASIN	B0001EFIGQ
Age Range Description	Adult
Apparent Angle of View	42.7 Degrees
Best Sellers Rank	#411,021 in Electronics ( See Top 100 in Electronics ) #506 in Binoculars
Box Contents	Action EX Extreme All-Terrain Binocular
Brand Name	Nikon
Coating	Multi-Coated
Colour	Black
Compatible Devices	Smartphone
Customer Reviews	4.6 4.6 out of 5 stars (243)
Diopter Adjustment Range	Wide range for various light conditions and visual acuity
Enclosure Material	Rubber
Exit-Pupil Diameter	7.1 Millimeters
Eye Relief	17 Millimeters
Field of View	7.15 Degrees
Focus Description	Manual Focus
Focus Type	Center Focus
Global Trade Identification Number	00018208072392
Item Dimensions L x W	24.4L x 21.3W Centimeters
Item Dimensions L x W x H	36.8L x 19.4W x 6H Centimeters
Item Highlight	Field of view of 335 feet Smooth central focus
Item Part Number	BAA662AA
Item Type Name	Action EX Extreme All-Terrain Binocular
Item Weight Unit of Measure	1.36 Kilograms
Low Light Technology	yes
Magnification Maximum	7
Manufacturer	Nikon
Manufacturer Part Number	7239
Model Name	action
Model Number	7239
Number of Items	1
Objective Lens Diameter	50 Millimeters
Prism Type	Porro Prism
Product Features	Eco-Friendly
Relative Brightness	50.4
Size Map	Full Size
Specific Uses	Sport Watching
UPC	018208072392
Unit Count	1 Count
VESA Mount Type	Tripod Mount
Water Resistance Level	Waterproof
Zoom Ratio	7 multiplier_x

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€ 398.07

Duties & taxes included

In stock

Sold byAmazon SlovakiaDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to Slovakia.

Secure transaction

Trustpilot

TrustScore 4.5 | 7,300+ reviews

Meera L.

Smooth transaction and product arrived in perfect condition.

3 weeks ago

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