Kowa TSE-Z9B – 20x–60x Zoom Eyepiece
When does the delivery take place?
Delivery times vary depending on the country and destination postal code. They will be shown at checkout and apply only to products currently in stock.
For products marked as Not in stock, processing may take between 5 and 15 days. If delays occur, our customer service will contact you with timely updates.
What are the warranty terms?
All our products come with a 24-month legal warranty. Some brands provide extended warranty. Contact us for more info.
Click here for more information.
Can I return a product?
You have the right to return a product within 14 days from delivery, as stated in our Refund Policy. Return shipping costs are the responsibility of the customer. Items must be returned in their original condition and packaging. Please contact us before returning.
Sei un'azienda? Compila il modulo per la fatturazione
Clicca sul pulsante qui sotto per inserire i tuoi dati aziendali:
Vai al moduloKowa TSE-Z9B – 20x–60x Zoom Eyepiece for Kowa TSN Spotting Scopes
The Kowa TSE-Z9B is a 20x–60x zoom eyepiece designed for Kowa TSN spotting scopes. It offers a variable 1.0 to 1.9 degree field of view, providing flexibility and optical precision for demanding nature observation and long-range viewing.
Compatibility with Kowa Spotting Scopes
This eyepiece is directly compatible (no adapter required) with the following Kowa spotting scopes:
- TSN-601 / TSN-602 / TSN-603 / TSN-604
- TSN-661 / TSN-662 / TSN-663 / TSN-664 / TSN-663M / TSN-664M
- TSN-82SV
- TSN-1 / TSN-2 / TSN-3 / TSN-4
- TS-601 / TS-602
- TS-611 / TS-612 / TS-613 / TS-614
When used with TSN-820 or TSN-820M spotting scopes, the TSN-EC1A adapter ring is required.
Optical Performance
The optical design of the TSE-Z9B ensures an optimal balance between brightness, sharpness and field of view throughout the entire zoom range. The variable exit pupil combined with a consistent eye relief allows for comfortable and precise observation, even during extended viewing sessions.
Technical Specifications
| Magnification | 20–60x (TSN 600/660) · 20–63x (TSN 82SV) |
|---|---|
| Field of View | 1.9–1.0° (TSN 600/660) · 1.8–0.95° (TSN 82SV) |
| Exit Pupil | 3.0–1.0 mm (TSN 600) · 3.3–1.1 mm (TSN 660) · 3.9–1.3 mm (TSN 82SV) |
| Eye Relief | 16.5 mm |
| Field at 1000 m | 33.2–17.5 m (TSN 600/660) · 31–17 m (TSN 82SV) |
| Relative Brightness | 9.0–1.0 (TSN 600) · 10.9–1.2 (TSN 660) · 6.8–1.7 (TSN 82SV) |
| Twilight Factor | 34.6–60.0 (TSN 600) · 36.3–62.9 (TSN 660) · 41.5–71.9 (TSN 82SV) |
Required Adapter
For use with TSN-820 and TSN-820M spotting scopes, the TSN-EC1A adapter ring is required to ensure proper mechanical and optical compatibility.