Skip to content

Kowa TSN-554 15-45x55mm Straight Spotting Scope

by Kowa
Save 20% Save 20%
Original price $1,999.00
Original price $1,999.00 - Original price $1,999.00
Original price $1,999.00
Current price $1,599.00
$1,599.00 - $1,599.00
Current price $1,599.00
In stock

Ships To: United States & Canada 🇺🇸 🇨🇦

✓ Free U.S. Shipping (on most orders over $150 USD)

✓ Price Match Available

✓ Authorized Dealer

✓ Bulk Order Discounts Available

✓ Questions? Call Us 1-800-860-3429

Ships In: 1-3 Business Days

Estimated Delivery Time: 3-7 Business Days

Shipping & Returns

We offer free U.S. shipping to the lower 48 States - on most orders over $150 USD. Some limitations apply.

Shipping fees will apply on most orders shipping across Canada, with some exceptions.

We offer a 30 Day Return Policy on most of the products that we carry.

For full details on our Shipping & Returns Policy, please click here.


The vast majority of products that we sell, with a few exceptions, are covered under Warranty.

To view the Warranty details for each brand that we sell, including products that do not qualify for Warranty, please visit here.

TSN-554 15-45x55mm Straight Spotting Scope by Kowa Optics

Presenting the Kowa TSN-554 15-45x55mm Straight Spotting Scope—a distinctive and compact optical marvel designed to elevate your journeys with unforgettable and immersive experiences.

The TSN-550 PROMINAR series spotting scope lies the fluorite crystal objective lens, a remarkable innovation.

This natural mineral boasts an exceptional property of ultra-low dispersion not found in conventional optical glass.

This exceptional characteristic empowers Kowa to virtually eliminate chromatic aberration, enhancing resolution and contrast significantly. The inclusion of fluorite crystal in Kowa spotting scopes stands as a testament to decades of optical advancements.

Kowa TSN-554 15-45x55mm Straight Spotting Scope Lifestyle Photo Outdoors

With its compact dimensions of just 270mm in length and a mere weight of 800g, the TSN-550 PROMINAR exemplifies true portability, making it an impeccable companion for your travels.

The TSN-550 PROMINAR signifies not just an optic, but a philosophy, a lifestyle. It enriches every moment of use, offering a distinctiveness that reshapes possibilities.

This compact spotting scope opens doors to fresh horizons. No matter where your journey leads, the Kowa TSN-550 stands ready as your ultimate travel partner.

Kowa TSN-554 15-45x55mm Straight Spotting Scope Lifestyle Photo

Its lightweight yet robust construction, fully waterproof and nitrogen-filled, ensures unwavering performance even in the most challenging terrains


      • 15-45x Magnification: The Kowa TSN-554 Straight Spotting Scope offers a versatile magnification range from 15x to 45x, allowing users to zoom in for detailed observations or zoom out for a broader view, making it suitable for a variety of outdoor activities such as birdwatching, nature observation, and target shooting.
      • 55mm Objective Lens: The spotting scope features a 55mm objective lens, striking a balance between portability and light-gathering capability. This diameter ensures ample light transmission, contributing to clear and bright images in different lighting conditions, enhancing the overall viewing experience.
      • Straight View Eyepiece Design: With a straight view eyepiece design, the TSN-554 enhances ease of use and quick target acquisition. This design is especially beneficial for users who prefer a direct line of sight, simplifying the process of locating and tracking subjects, making it suitable for various observation scenarios.
      • Extremely Compact Premium Spotting Scope: Crafted for portability, the TSN-554 is an extremely compact spotting scope, making it an ideal companion for travelers, birdwatchers, and outdoor enthusiasts who prioritize mobility without compromising optical performance.
      • Fluorite Crystal Lens: The use of a fluorite crystal lens minimizes color aberration, ensuring unparalleled resolution and contrast. This advanced optical technology enhances the overall image quality, allowing users to observe subjects with exceptional clarity.
      • Kowa's KR Coating: The implementation of Kowa's KR coating serves as a protective layer for the lenses, guarding against dirt and foreign particles. This coating makes it easy to clean, ensuring a clear and unobstructed view during regular usage.
      • Waterproof and Fogproof: Built to withstand challenging weather conditions, the TSN-554 is fully waterproof and nitrogen-filled, preventing water infiltration and internal fogging. This feature ensures reliable performance in various environments, providing durability for outdoor adventures.
      • Dual Focus Mechanism: The dual focus mechanism allows for seamless and precise adjustments, facilitating rapid focus transitions from infinity to 5m with a generously sized, easily maneuverable knob. The fine focus function refines accuracy, particularly advantageous at elevated magnifications and for digiscoping setups.
      • Tripod Mounting Screw: The inclusion of a tripod mounting screw enables secure attachment to both 1/4 and 3/8 inch tripod mounts, ensuring stability during prolonged observations and enhancing the overall user experience.
      • Ideal for Digiscoping with a Camera or Smartphone: Designed for digiscoping, the spotting scope facilitates the capture of images and videos using a camera or smartphone, adding versatility to the scope and allowing users to document and share their observations with ease.
      • Twist-Up Eyecups: The spotting scope is equipped with twist-up eyecups, providing convenience and comfort during extended viewing sessions. Users can adjust the eyecups to their preferred eye relief, accommodating both eyeglass wearers and non-eyeglass wearers.
      • Suitable for Nature or Bird Watching, Traveling, and Always Having With You: Positioned as an ideal optical tool for nature and bird watching, traveling, and ensuring constant readiness, the TSN-554 Spotting Scope caters to outdoor enthusiasts, providing a versatile and reliable companion for various outdoor activities


        What's Included:

        ✓ Kowa TSN-554 15-45x55mm Straight Spotting Scope

        ✓ Objective lens caps

        ✓ Eyepiece caps

        ✓ Instruction manual

        ✓ Cleaning Cloth

        ✓ Limited 10 Year Warranty


        Kowa TSN-554 15-45x55mm Straight Spotting Scope Features Video:



        Minimum Focusing Distance: 3.0m
        Objective Lens Material: Fluorite Crystal
        Objective Lens Effective Diameter: 55mm
        Filter thread: 58mm
        Length: 288mm
        Weight: 800g

        Customer Reviews

        Based on 1 review
        John R.

        Quality glass equals quality optics. Easy to carry on a long day immersed in Nature. Happy with my Kowa scope.