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Kowa – TSN-664M 66mm PROMINAR XD Spotting Scope (Straight Viewing, Green)
- Straight Viewing
- Eyepiece Required for Use
- 66mm Objective Lens
- Extra-Low Dispersion PROMINAR XD Lens
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- Details
- Specifications
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Description
A Guide to Birding with Spotting Scopes
The green, straight-viewing TSN-664M 66mm PROMINAR XD Spotting Scope from Kowa features high-quality optics built into a body that is designed for reliable use under a variety of viewing conditions. Measuring 12.3″ long and constructed from magnesium alloy, this durable scope can provide a wide angle or a versatile viewing range depending on which separately available eyepiece is installed on it.
Compatible Kowa eyepieces include the TE-14WD 30x Wide-Angle Eyepiece, the TE-17HD 25x Long Eye Relief Eyepiece, and the TE-9Z 20-60x Zoom Eyepiece.
While in use, the TSN-664M 66mm Spotting Scope’s PROMINAR XD (extra-low dispersion) lens and a concave dispersion lens work together to minimize chromatic aberrations. Additionally, multi-coated optical surfaces help to consistently maximize light transmission, sharpness, and color fidelity.
A nitrogen fill prevents fog accumulation and an O-ring sealed waterproof construction further adds to the rugged design of the TSN-664M 66mm Spotting Scope. Conforming to JIS (Japanese Industrial Standard) Protection Class 7 waterproofing, this scope can withstand momentary immersion, assuming the eyepiece mount is not open and exposed.
Optical Performance
66mm objective lens
Use and Handling
Smooth and coarse focus knobs
Construction Details
Magnesium-alloy body
Additional information
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