Kowa TE-11WZ II Wide-Angle Zoom Eyepiece for Spotting Scopes
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Vai al moduloKowa TE-11WZ II – Wide-Angle Zoom Eyepiece for TSN Spotting Scopes
The Kowa TE-11WZ II is the reference wide-angle zoom eyepiece for Kowa TSN-99, TSN-880 and TSN-770 series spotting scopes. It provides a continuous magnification range from 25 to 60x (TSN-880/770 series) or 30 to 70x (TSN-99 series), covering all observation needs with a single eyepiece — from a wide overview field to maximum magnification for detail identification.
Field of View Increased by 20% Over the Previous Model
The II version delivers a substantial improvement over the TE-10Z: the field of view is 20% wider, reaching up to 42m at 1000m (25x, TSN-880/770 series). Despite the wide field and high zoom range, images maintain exceptional sharpness right up to the maximum magnifications of 60x and 70x.
Constant 17mm Eye Relief and Twist-Up Eyecup
The 17mm eye relief remains constant throughout the entire zoom range — a rare and critical technical feature for visual comfort. Combined with the twist-up eyecup mechanism, the TE-11WZ II is perfectly suited for eyeglass wearers, who can rotate the eyecup to the optimal position without removing their glasses.
Ideal for Digiscoping
The TE-11WZ II has been optimised for digiscoping: the combination of generous eye relief, continuous zoom and exceptional optical quality makes it one of the best eyepieces on the market for nature photography through a spotting scope — with smartphones or compact cameras via Kowa adapters.
Compatibility
Compatible with the following Kowa spotting scopes: TSN-773, TSN-774, TSN-883, TSN-884, TSN-99A, TSN-99S and telephoto lenses (with prism adapter TP-88EC1). Also compatible with TSN-771, TSN-772, TSN-881, TSN-882 (discontinued).
Technical Specifications
| Feature | TSN-99 | TSN-880 / TSN-770 |
|---|---|---|
| Zoom Magnification | 30–70x | 25–60x |
| Field of View (degrees) | 2.0° – 1.13° | 2.4° – 1.32° |
| Field of View at 1000m | 35 – 20m | 42 – 23m |
| Exit Pupil Diameter | 3.3 – 1.4mm | 3.5 – 1.5mm |
| Relative Brightness | 10.9 – 2.0 | 12.3 – 2.3 |
| Twilight Factor | 51.4 – 78.6 | 46.9 – 72.7 |
| Eye Relief | 17mm (constant throughout the zoom range) | |
| Eyecup | Twist-up | |