KOWA SPOTTING SCOPES
a Brand cherished by outdoor enthusiasts around the world
- a testament to quality.
OPTICAL TECHNOLOGY
Kowa Brand cherished by outdoor enthusiasts
around the world - a testament to quality.
The Electronics & Optics business of Kowa began the production of spotting scopes in 1952. Originally, they were developed as scopes for examining targets in shooting matches and saw offi cial use in the 1964 Olympics Games held in Tokyo. Once discovered by birdwatchers, they gained unexpected popularity which gradually spread throughout the world of nature observation. Kowa Sporting Optics are highly appreciated as it is widely known that their quality and reliability are the result of more than half a century of experience and development. Kowa's larger aperture models enjoy a large market share in Europe and North America.
The Prominar line which includes models utilizing pure fluorite crystal to achieve optical characteristics unattainable with glass, is the gold standard of serious users.
Based on our experience that optics have to travel and endure all types of adverse environmental conditions, Kowa Sporting Optics are designed to be rugged yet lightweight, without compromising optical performance. The shapes of our products and their protective covers are ergonomically designed to optimize ease of use, and Eco-Glass is utilized in all lenses. Kowa offers a wide variety of products that provide quality optical performance for the outdoor enthusiast.
Whether you are a beginner or an experienced professional, Kowa has the right spotting scope or binocular that will exceed your expectations.
Eco-Glass is an environmentally friendly glass that not contain lead or other harmful substances.
OPTICAL TECHNOLOGY
Lens
FC Fluorite Crystal Lenses
These fluorite crystal lenses, manufactured with Kowa's advanced processing technology that was acquired over many years, provide users with the ultimate viewing experience.
XD XD Lenses
Kowa’s XD Lenses (eXtra-low Dispersion glass which has characteristics close to fluorite crystal), when combined with a concave lens possessing special dispersion properties, reduces a very high percentage of chromatic aberration (color blur). Their performance nearly matches Kowa’s flagship models which utilize fluorite crystal lenses.
Features
DF Dual Focus Mechanism (Quick and Fine Focusing)
The well established Kowa focus system has progressed to a dual focus system. The quick focus, with a large and easy to turn knob, will focus from infinity to 5m in two revolutions. The fine focus, with smooth movement and pinpoint accuracy, is extremely useful at high magnifications and for digiscoping systems.
EL Eyepiece Locking Mechanism
Kowa's standard eyepiece bayonet mount has been passed down to these spotting scopes with a attractive feature. An eyepiece locking mechanism has been added to the mount to prevent the eyepiece from getting lost or falling out unexpectedly.
MB Magnesium Alloy Body
The magnesium alloy body made by a sophisticated molding process called thixotropic molding has the feel and strength of a traditional metal body with decreased weight when compared to other large diameter scopes. The rugged structure can tolerate the severest conditions and provides confidence and a sense of security for the user.
TS Tripod Mounting Screw
The addition of a insert to the tripod mount of the scope allows the scope to be secured to both 1/4 and 3/8 inch mount tripods.
| MC | Multi-Coated Processing Applied to All Lens Surfaces |
All lenses, prisms, and dustproof glass are fully multicoated, ensuring sharp images and a clear visual range.
| WP | Completely Waterproof Structure filled with Dry Nitrogen Gas |
The housing is waterproof to JIS* Protection Class 7** and filled with dry nitrogen gas to prevent the lenses from fogging.
＊＊ Not intended for underwater use.
KR KR Coating
Kowa's KR coating protects the lenses from dirt and other foreign residue that may affix to the lenses during normal use. Even in cases where the lens is accidentally touched, fingerprints or oil can easily be removed through proper lens cleaning methods.
Chromatic Aberration
Fluorite Crystal or XD Lenses
Normal Lenses
Eyepieces
Image examples of different eyepieces
- 88 TSN-88 Series
- 770 TSN-770 Series
- 82SV TSN-82SV
- 660M TSN-660M Series
- 600 TSN-600 Series
- 550 TSN-550 Series
- 500 TSN-500 Series
- 556 Telephoto Lens/Scope
TSN-99 Series
The latest and greatest model incorporating both PROMINAR Fluorite Crystal and XD lenses
The TSN-99 PROMINAR Series is the evolution of over six decades of Japanese optical design and technology. It utilizes the very best from our optical heritage and benefits from features, technology and engineering developed by generations of Kowa optical experts.
TSN-99 Series
99mm PROMINAR Fluorite Crystal Lens
The heart of all Kowa PROMINAR flagship optics are our unique pure fluorite crystal lenses and the TSN-99 PROMINAR features our largest objective lens ever produced at 99 mm. delivering outstanding low light performance and exquisite detail free from chromatic aberration.
Other Features
- Advanced Design
- PROMINAR Fluorite and XD Lenses
- Upgraded Coatings
- Magnesium Alloy Body and Barrel
- Dual Focus Mechanism (Quick and Fine Focusing)
- Eyepiece Locking Mechanism
- Completely Waterproof Structure
- Nitrogen Filled
TSN-88/770 Series
Flagship Model Incorporating PROMINAR Fluorite Crystal or XD Lenses
User-friendly designed, light and compact despite its large objective lens. Logically tailored to meet the needs of the most demanding user. Users of these advanced spotting scopes will know that they own an extremely high quality instrument.
TSN-88 Series
88mm PROMINAR Fluorite Crystal Lens
The pure fluorite crystal used in these models is the optimum optical material for reducing chromatic aberration, providing the ultimate viewing experience.
TSN-770 Series
77mm PROMINAR XD Lens
The PROMINAR models ”TSN-773/774” have an XD objective lens with low dispersion properties to diminish chromatic aberration. Like the TSN-88 Prominar models, the concave lens paired with the XD lens is made of glass with special dispersion properties to reduce the chromatic aberration to a further degree. The performance and compactness of these spotting scopes are second to no other scope in this class.
Other Features
- Advanced Design
- Large Lens, Compact Size
- Magnesium Alloy Body
- Dual Focus Mechanism (Quick and Fine Focusing)
- Eyepiece Locking Mechanism
- Tripod Mounting Screw
- Completely Waterproof Structure filled with Dry Nitrogen Gas
TSN-82SV
High Performance Angled Scope
World-Class Model with Large 82mm Objective Lens
This sophisticated scope with outstanding light gathering power and a bright field of view is the dream instrument of every bird watcher, hunter, and target shooter.
Large 82mm Objective Lens Fully Multicoated Optics
All lenses, prisms, and dustproof glass are fully multicoated, ensuring sharp images and a clear visual range.
Waterproof and Filled with Dry Nitrogen Gas
The housing is waterproof to JIS* Protection Class 7** and filled with dry nitrogen gas to prevent the lens from fogging.
*JIS=Japanese Industrial Standard.
**The scope is not intended for use underwater.
Selection of 3 Eyepices
- The wide angle and long eye relief eyepieces are waterproof when mounted to the spotting scope.
- Magnifications printed on the eyepieces are specific to the TSN-660M/600 Series spotting scopes. Specifications may be slightly different when mounted to the TSN-82SV scope. Please refer to the catalog for full specification details.
TSN-660M Series
High Performance Model Incorporating PROMINAR XD Lenses
66mm PROMINAR XD Lens Models
The lens has more than 120% the light gathering capability of a 60mm objective lens, ensuring a bright field of view for observation.
The PROMINAR models (TSN-663M/664M) with XD objective lenses are available for those who seek higher optical performance.
Compact and Lightweight Body
The compact body of the TSN-660M Series is equivalent in length to a 60mm class spotting scope, and weighing only 1kg (36 oz), the scope is extremely easy to handle and carry.
Waterproof and Filled with Dry Nitrogen Gas
The housing is waterproof to JIS* Protection Class 7** and filled with dry nitrogen gas to prevent the lens from fogging.
*JIS=Japanese Industrial Standard.
**The scope is not intended for use underwater.
Other Features
- Aiming Line
- Dust Protection Glass
- Bayonet Mount
- Focusing Knob
- Sliding Sunshade
- Rotating Tripod Mount
TSN-600 Series
Compact High Performance Series
Ultra Lightweight Body
These scopes weigh less than 745g (25-26 oz) but are tough enough to withstand the most adverse conditions.
Fully Multicoated Body
All lenses, prisms, and dustproof glass are fully multicoated, ensuring sharp images and a clear visual range.
Waterproof and Filled with Dry Nitrogen Gas
The housing is waterproof to JIS* Protection Class 7** and filled with dry nitrogen gas to prevent the lens from fogging.
*JIS=Japanese Industrial Standard.
**The scope is not intended for use underwater.
Other Features
- Aiming Line
- Dust Protection Glass
- Bayonet Mount
- Focusing Knob
- Sliding Sunshade
TSN-550/500 Series
A journey of freedom
A True milestone.
A journey of over 60 years of heritage, refining and developing techniques passed down decade to decade from the Kowa optical masters in Japan. This legacy leads us to where we are now – introducing the new compact Kowa TSN-550 PROMINAR – a truly unique spotting scope, designed to make your journeys truly memorable and immersive.
The TSN-550 PROMINAR begins with fluorite crystal.
At the heart of the TSN-550 PROMINAR series spotting scope beats a Fluorite Crystal 55mm objective lens. This natural mineral has an outstanding feature of very low dispersion that cannot be found in optical glass. This characteristic enables Kowa to eliminate color blur almost completely and dramatically increase resolution and contrast. Fluorite crystal is a unique feature of Kowa spotting scopes and is a A journey of freedom. testament to decades of Kowa optical developments.
Perfection in the palm of your hand.
Measuring just a mere 270mm in length and weighing only 800g*, the TSN-550 PROMINAR is truly compact and makes the perfect travel companion. Kowa’s dream was to create an ultra-portable spotting scope delivering the highest levels of optical performance. This vision has been realised in the TSN-550 PROMINAR.
