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The new TSN-99 PROMINAR Series is the evolution of over six decades of Japanese optical design and technology. It utilizes the very best from Kowa’s optical heritage and benefits from features, technology and engineering developed by generations of
Kowa optical experts.
At the heart of all Kowa PROMINAR flagship optics are Kowa’s unique pure fluorite crystal lenses and the TSN-99 PROMINAR features their largest objective lens ever produced at 99mm. The goal which Kowa achieved was to create a scope delivering outstanding low light performance and exquisite detail free from chromatic aberration. To create an optic delivering one of the brightest and widest view of nature.
Crystal clear - a phrase you will often hear loosely used in the world of sporting optics, but take a look through a Kowa TSN-99 PROMINAR spotting scope and that’s exactly what you will get, both physically and visually. A solid piece of pure fluorite crystal was crafted into a perfectly polished and multi-coated lens to deliver the true definition of
what is crystal clear and the ultimate viewing experience. For the first time in any Kowa spotting scope, a Kowa XD lens with extremely low dispersion characteristics was used for the convex lens of the TSN-99 PROMINAR. The concave lens paired with the fluorite crystal lens is made with special dispersion properties to reduce chromatic aberration even further. This special combination virtually eliminates chromatic aberration even at high magnification. It redefines the standards of colour brilliance. This technology is the result of many years of Kowa optical design.
The dual focus system is one of the defining features of Kowa flagship spotting scopes, highly engineered to give ultimate control, the TSN-99 PROMINAR is no exception, the optic is a dream to use out in the field. The dual focus mechanism is the gateway to controlling the image between your eye and the scope. Exquisite engineering is refined to make operation flawless. Quick focus allows for fast action to bring your subject in to detail in just a few smooth revolutions, whilst Fine focus gives
pin-point, finger-tip control offering the ultimate in focussing accuracy with minute adjustments possible even when wearing gloves. The responsive focus system is tuned to not only respond effortlessly for conventional observation, but increases performance for applications such as digiscoping when accurate focus is critical.
Magnification: 30x-70x
Objective Diameter: 99mm
Eye Relief: 17mm
Exit Pupil: 3.5-1.5mm
Twilight Factor: 51.4-78.6
FOV@1000yds: 105ft-60ft
Weight: 4lb 13oz
Magnification: 40x
Objective Diameter: 99mm
Eye Relief: 17mm
Exit Pupil: 2.5mm
Twilight Factor: 59.3
FOV@1000yds: 128
Weight: 4lb 13oz
