Kowa TSN 660 Series Spotting Scopes

These high performance models are the perfect fusion of compactness and high optical performance. This series satisfies the needs of a wide range of users from beginning bird watchers to scientists and professional researarchers.

Highest level of optical performance
The 66mm diameter objective lens has more than 120% light gathering power of the 60mm objective lens. All optics are fully multi-coated for brighter, clearer and sharper viewing. Prominar ED models are also available for even better optical performance with optimum color definition.

66mm objective lens
The lens has more than 120% the light gathering capability of a 60mm objective lens, ensuring a bright field of view for observation.

Fully multicoated optics
All lenses, prisms, and dustproof glass are fully multicoated, ensuring sharp images and a clear visual range.

High end Prominar models
The PROMINAR models (TSN-663/664) with XD objective lenses are available for those who seek higher optical performance.

Compact and lightweight body
The compact body of the TSN-660 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. Main body length of about 30cm. Available in Angled or Straight viewing types with the Kowa easy-to-use functions.

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. Not intended for underwater use.