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PROMINAR – the pinnacle of optical excellence

Only the finest optics deserve the accolade of the PROMINAR title. Optics that utilise Kowa’s unique benchmark feature – fluorite crystal, delivering simply the best optical performance available today.

Incredible clarity.

At the heart of the TSN-550 PROMINAR series spotting scope beats a fluorite crystal 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 colour blur almost completely and dramatically increase resolution and contrast. Fluorite crystal is a unique feature of Kowa spotting scopes and is a testament to decades of Kowa optical developments.

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The difference is clear.

The optimum optical material to minimise chromatic aberration is fluorite crystal.

Fluorite crystal with extremely low dispersion characteristics is used for the convex lens of the Kowa TSN-550 PROMINAR models.

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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.

more than just an optic – it fits your way life.

The TSN-550 PROMINAR represents a way of thinking, a way of life. An optic that enhances every moment you use it. It’s unique. A spotting scope this compact creates new opportunities. Wherever your journey takes you, the Kowa TSN-550 is the perfect travel companion.

Reliability guaranteed.

A lightweight yet durable, fully waterproof and nitrogen filled chassis ensures performance in the toughest of environments.

The legacy continues.

Not only does the TSN-550 PROMINAR adopt the unique styling of it’s larger predecessor, it also inherits what makes the TSN-880 still unrivalled to this day – decades of Kowa optical development. The result? A new benchmark optic in the compact spotting scope market.

CLOSE FOCUS

With a close focus distance of 3m – see the secret beauty of nature in glorious, fine detail.

POWERFUL ZOOM

A responsive twist 15-45x zoom eyepiece means you can enjoy clear, close up views of your subject.

ROBUST MATERIALS

The compact TSN-550 series spotting scope has a tough outer shell to protect against harsh environments and weather.

FLUORITE CRYSTAL

The TSN-550 features a fluorite crystal objective lens. This natural mineral virtually eliminates all colour fringing.

FULLY WATERPROOF

The TSN-550 series is built to withstand the elements with a fully sealed, waterproof and nitrogen filled casing.

COMPACT & LIGHT

Weighing just 800g (TSN-554), the Kowa TSN-550 series spotting scope is ultra portable, never miss that special moment.

 

View full specifications

KOWA TSN-550

OVER 60 YEARS OF KOWA OPTICAL DESIGN AND DEVELOPMENT.

MEET THE RESULT.