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Kowa Prominar 66mm with 20-60x eyepiece Spotting Scope

SKU: TSN663M

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Kowa Prominar 66mm with 20-60x eyepiece Spotting Scope-Spotting scope-Jacobs Photo and Digital
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Kowa Prominar 66mm with 20-60x eyepiece Spotting Scope-Spotting scope-Jacobs Photo and Digital

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Kowa Prominar 66mm with 20-60x eyepiece Spotting Scope

SKU: TSN663M

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About this product

The green, angled viewing TSN-663M & 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 12.2" 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 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 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"-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 Thread 1/4"-20
Filter Thread 72 mm
Weatherproofing Waterproof, O-ring sealed
Dimensions 12.20 in (31.10 cm)
Weight 2.29 lb (1.04 kg)

 

Comes with the TE-9Z 20-60x Zoom Eyepiece

Kowa's TE-9Z 20-60x Zoom Spotting Scope Eyepiece is compatible with TSN-82SV, TSN-660 and TSN-600 series spotting scopes to provide a wide magnification range that will satisfy most of your observational needs. Using a simple bayonet mount it installs easily and the knurled dial makes changing the zoom quick. It features a wide angle 37-60° apparent field of view depending on the model, and it is water and fogproof.

Bayonet mounts
Eyepieces can be silently changed in the field
Brilliant twist-up eyecup

Specs of the eyepiece

 

Magnification 20-60x
Angle of View 20x:  1.8°
60x:  1.0°
Field-of-View (@ 1000 Yds) 20x:  97' (32 m at 1000 m)
60x:  53' (18 m at 1000 m)
Exit Pupil Diameter 20x:  3.0mm with 60mm & 61mm, 3.3mm with 66mm, 3.8mm with 77mm
60x:  1.0mm with 60mm & 61mm, 1.1mm with 66mm, 1.3mm with 77mm
Eye Relief 16mm
Relative Brightness 20x:  9.0 with 60mm & 61mm, 10.9 with 66mm, 14.8 with 77mm
60x:  1.0 with 60mm & 61mm, 1.2 with 66mm, 1.6 with 77mm
Twilight Factor 20x:  35.0 with 60mm & 61mm, 36.3 with 66mm, 39.2 with 77mm
60x:  60.0 with 60mm & 61mm, 63.0 with 66mm, 68.0 with 77mm
Weatherproofing Waterproof & fogproof
Dimensions 1.9 x 3.9" (49 x 99mm) WxH
Weight 0.52 lb (235 g)

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