KOWA PROMINAR OFFICIAL WEB SITE

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.

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

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

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

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.

The housing is waterproof to JIS* Protection Class 7** and filled with dry nitrogen gas to prevent the lens from fogging.
*JIS=Japanese Industrial Standard.
**The scope is not intended for use underwater.

Aiming Line The aiming line is helpful for quick sighting.	Focusing Knob The focusing knob allows a smooth and accurate focusing with one-finger.	Dust Protection Glass The dust protection glass protects the scope body from dust and moisture.
Sliding Sunshade The sliding sunshade prevents unnecessary light and raindrops.	Bayonet Mount The bayonet mount assures easy and quick interchanging of eyepieces.	Rotating Tripod Mount The rotating tripod mount allows the spotting scope to be set at various angles while attached to the tripod.

Model	TSN-661	TSN-662	TSN-663	TSN-664
Objective Lens Diameter	66mm	66mm	66mm	66mm
Lens Type	Nomal Lens	Nomal Lens	XD Lense	XD Lens
Minimum Focusing Distance	6m (6.6yds)	6m (6.6yds)	6m (6.6yds)	6m (6.6yds)
Length	311mm (12.2in)	312mm (12.3in)	311mm (12.2in)	312mm (12.3in)
Weight	1010g (35.6oz)	990g (34.9oz)	1040g (36.7oz)	1020g (36.0oz)
Filter Diameter	72mm	72mm	72mm	72mm

Model	TE-21WD (TSE-21WD)	TE-14WD (TSE-14WD)	TE-9WD (TSE-9WD)
Magnification	20X, WIDE	30X, WIDE	45X, WIDE
Real Filed of View	3.3°	2.4°	1.43°
Exit Pupil	3.3mm	2.2mm	1.5mm
Relative Brightness	10.9	4.8	2.3
Eye Relief	20mm	20mm	15mm
Field of View at 1000m/yds	57.8m/yds	41.9m/yds	25.0m/yds

Model	TE-17HD (TSE-17HD)	TE-6Z (TSE-Z6)	TE-9Z (TSE-Z9B)
Magnification	25X, LER	20 ～ 40X, ZOOM	20 ～ 60X, ZOOM
Real Filed of View	2.1°	1.9° ～ 1.4 °	1.9° ～ 1.0°
Exit Pupil	2.6mm	3.3 ～ 1.7mm	3.3 ～ 1.1mm
Relative Brightness	6.8	10.9 ～ 2.9	10.9 ～ 1.2
Eye Relief	32mm	18.5 ～ 15mm	16.5 ～ 16mm
Field of View at 1000m/yds	36.7m/yds	33.2 ～ 24.4m/yds	33.2 ～ 17.5m/yds

Attach a 35mm film single lens reflex camera or digital single lens reflex camera to a Kowa spotting scope for super-telephotography.(Except TS-500 Series)