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The green, angled viewingÂ TSN-663M 66mm Prominar XD Spotting Scope fromÂ Kowa features high-quality optics built into a body that is designed for reliable use under a variety of viewing conditions. Measuring 12.2 inch 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-663M 66mm Spotting Scope's Prominar XD (eXtra-low dispersion) Lens and a concave dispersion lens work together to minimize chromatic aberrations. Additionally, multicoated 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 add to the rugged design of the TSN-663M 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
- Prominar XD lens and a dispersion concave lens help to minimize chromatic aberrations
- Multicoated optical surfaces minimize reflections while helping to maximize light transmission, sharpness, and color fidelity
- Use and Handling
- Smooth and coarse-focus knob
- Integrated sunshade
- Rotatable tripod collar with 1/4 inch-20 threading
- Construction Details
- Magnesium-alloy body
- Nitrogen-filled to be fogproof
- O-ring sealed to be waterproof
|Objective lens diameter||66 mm|
|Minimum Focus Distance||19.7 ft (6.0 m)|
|Mounting Threads||1/4 inch-20|
|Filter Thread||72 mm|
|Weatherproofing||Waterproof, O-ring sealed|