Steiner 7x50 Marine Binoculars

Popular Marine Binoculars

Item #BCO155-1

  • Your Price:
  • $299.99
  • + FREE Shipping
  • HD Diamond Marine™ coating reduces glare, increases clarity & maximizes light transmission.
  • Individual eye focus allows you to set the focus only once to avoid chasing focus on moving objects.
  • Classic porro prism design produces 3 dimensional depth perception & a massive field of view.
  • Floating prism system uses a flexible lens mount to absorb severe shock & impact.
  • 7x magnification with a wide field of view of 365 feet at 1000 yards.
  • Nitrogen purged for optimal water & fog-proofing.
  • Steiner Heritage™ Lifetime Warranty.
Questions? Let our experts help!
  • Description

    The Steiner 7x50 Marine Binoculars are the perfect, first pair of quality, water-going binoculars for enthusiasts who want the most performance for their money.  They are guaranteed to withstand water jets at multiple angles for five minutes without leaking.  It is also tested to withstand a 30° F temperature change without internal fogging.  It’s not just wet. It’s a whole different world. Fogbound mornings, afternoons of glaring sun and salt spray, nights like floating on ink. Always in motion, temperatures all over the board, distances that challenge land-bound perceptions. Steiner marine optics were built for this: waterproof, corrosion-proof, always crystal-clear, with special coatings, construction and capabilities specifically created for a water-borne life. Enjoy.


    • Porro-Prism Design - A favorite of boaters due to it's wide, long depth of field.   
    • Indivdual-Eye Focus - Custom focus each ocular & maintain focus from 65 feet to infinity.  
    • High Contrast (CAT) - Specially coated optics provie the highest light transmission, edge to edge.
    • Advanced UV - High-contrast coatings provide optimal performance, espcially around water.
    • ClicLoc System - Attaches & releases your neck-strap instantly with the push of a button.
    • N-2 Injection System - Seals in nitrogen for water and fog-proof clarity in all conditions.  
    • Makolon® Housing - Durable NBR poly-carbonate chasis can withstand 11G's of impact.
    • Twist-up Eyecups - Cuts out stray-light and provides comfort for eye/sunglass wearers.
    • 7x Magnification - A boaters favorite provides steady viewing and a wide field-of-view.  
    • Heritage Lifetime Warranty -  No fault, tranfsferable warranty.  

    Steiner Heritage Warranty - For The Life Of The Product

    For the lifetime of the product, Steiner will repair or replace the product at no charge to you if it becomes damaged or defective for any reason other than theft or deliberate misuse.  No warranty card or receipt is ever needed and the warranty is fully transferable.   

    The Steiner Heritage™ Warranty means Steiner stand behind their products.  Over half a century of experience building rugged and reliable, mil-spec product and supplying them to armed forces all around the world allows Steiner to have this kind of confidence.  Steiner is totally committed to the very highest standards of quality, dependability, and most of all customer satisfaction, and the Steiner Heritage™ Warranty assures you of that commitment.

    History of Steiner

    For Steiner, superb performance and bone-deep tenacity was born in the ruin of war.  In 1947, in the face of demolished infrastructures and a collapsed economy, Karl Steiner started a one-man workshop in Bayreuth, Germany, obsessed with a single goal: creating optical products so functional, sturdy and uniformly flawless that nothing in the chaotic, mass-production post-war world could compare.  His passion for unmatched optical perfection pushed Steiner-Optik from a hardscrabble startup to a 50-man factory within six years, and on to become a worldwide optical icon with binoculars and rifle scopes for every purpose, a history of innovation, and legions of die hard enthusiasts in every category.

    These premium German optics are now available in 65 countries, prized by sportsmen and spectators, birders and mariners, aviators and explorers, and deployed by security and military forces around the globe.  The research, development and production site in Bayreuth is arguably the most advanced optical facility on earth.  Steiner world-class lenses, coatings and prisms are created, perfected and produced in Germany, enduring the most exhaustive production, inspection, testing and approval process in the industry – lenses alone go through 460 exacting steps.  Finished lenses, crafted and uniquely multi-coated for specific purposes, are assembled into specialized binoculars and rifle scopes, then inspected, tested and approved again.  Once past final inspection, each and every Steiner optic provides the most reliable, accurate and satisfying viewing experience in its category, bar none, period.

    Supplier SKU


    What's Included

    Marine 7x50 Binoculars,Objective Lens Covers, Rain Guard, Protective Case, Neck Strap

  • Dimensions & Specifications



    Objective Lens Diameter:

    50 mm

    Field of View:

    356 ft @ 1000 yards

    Angle of View:


    Exit Pupil:

    7.1 mm

    Eye Relief:

    20 mm



    Twilight Factor:





    NBR Long Life


    5.2" x 8.2" x 2.8"


    36.3 oz


    Steiner Heritage Lifetime

  • Product Guarantee

    We stand behind all the products we sell, and your satisfaction is our top priority. If you're not satisfied with the quality of your purchase, simply send the item back to us in its original packaging within 30 days of its delivery.

    Manufacturer Warranty

    For the lifetime of the product, Steiner will repair or replace the product at no charge to you if it becomes damaged or defective for any reason other than theft or deliberate misuse.

    Return & Exchange Policy

    At our site, returns are easy! You may return new, unused, and resalable items for a refund or exchange. Simply ensure that the item is returned in its original product packaging within 30 days of delivery.

Customer Q&A

1 - 5 of 12
1 2
  • Q1: Is there any difference in image quality between this 7x50 Marine and the Steiner 7x50 Military binoculars? Why does the Military version cost more?

    A: Yes, there's a difference. The 7x50 Military is built to military specs and is nearly indestructible. In addition, its optical coatings offer roughly 97% light transmission vs. 90+% for the 7x50 Marine (accounting for much of the price difference). The Military also incorporates a range-finding reticle, which the Marine does not.

  • Q2: What is the "close focus" for the Steiner 7X50 Marine STEI040 Binoculars?

    A: The Steiner 7x50 marine binoculars have a close focus distance of 15ft.

1 - 5 of 12
1 2

Ask The Experts

Have questions about an item or need advice on selecting the right optic? Our team of experts is here to help! Avid outdoor enthusiasts themselves, they've tested gear in the field and can provide personalized product recommendations for just about any activity, from birding and hunting to sports and travel.

You can reach our Customer Support line at 1-800-246-6285. We're open 8 a.m. to 8 p.m. Central Time, Monday through Friday and 9 a.m. to 4 p.m. on Saturday.

After hours? Drop us an email at We'll get back to you as soon as possible, usually within 1 business day.