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KOWA 20-60x66 PROMINAR Fluorite Straight

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KOWA 20-60x66 PROMINAR Fluorite Straight Details

KOWA TSN-664 PROMINAR Fluorite Straight + TSE-Z9B (20-60x) Eyepiece
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KOWA 20-60x66 PROMINAR Fluorite Straight Specifications

ManufacturerKowa
SKU02222004+02223501
Spotting Scope SeriesKowa TSN-660
Body typeFixed
Variable magnificationNo
Minimal magnification20x
Maximal magnification60x
Lens diameter66 mm
Min. exit pupil diameter1.1 mm
Max. exit pupil diameter3.3 mm
Min. eye relief16 mm
Max. eye relief (mm)16.5 mm
Minimal field of view18 m/1000m
Maximum field of view33 m/1000m
Minimal field of view (deg.)1.0°
Maximal field of view (deg.)1.9°
Min. field of view apparent
Max. field of view (apparent)
Close focus5 m
Twilight Factor36.3 - 62.9
Relative Brightness1.2 - 10.9
Light transmission
Lens coatingFully Multicoated
Diopter range
Photo adapterYes
Objective treadYes
WaterproofYes
FogproofYes
Shockproof-
FloatableNo
Temperature range
Filled withNitrogen
ColorGreen
HeightN/A
Width80 mm
Length311 mm
Objective diameter
Eyepiece diameterNo
Eyepiece angle
Tripod adaptableYes
Weight1120 g
In production since
Warranty30 years
Made inJapan
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