KOWA · Spotting Scope · Nature Observation
KOWA TSN-501 Spotting Scope 20-40x50
45° Angled Viewing – 400 g Compact Class
Compact entry-level spotting scope with 45° angled eyepiece – 400 g lightweight, waterproof and perfect for birdwatching, sports and nature.
Entry-level spotting scope for birding, sports and nature – KOWA quality at an accessible price
The KOWA TSN-501 Spotting Scope 20-40x50 with angled eyepiece is your gateway to high-quality nature observation. Weighing just 400 g and measuring only 241 mm in length, it fits easily into any backpack and is ready to deploy at a moment’s notice – whether you are birdwatching at a lake, watching a football match from the stands, or observing wildlife in a nature reserve. The integrated 20-40x zoom eyepiece covers a versatile magnification range, delivering clear, sharp images at up to 40x power. KOWA, the Japanese optics specialist since 1894, equips this scope with quality optical glass and multi-coating – an optical standard rarely found at this price point.
KOWA Optics · Multi-Coated
Multi-coated optics – bright images from dawn to dusk
KOWA equips the TSN-501 with quality glass optics and multi-coating. This coating technology reduces reflections and stray light, increases light transmission and delivers high-contrast images – even in challenging conditions such as twilight or backlit scenes. For an entry-level spotting scope, the TSN-501 produces remarkably good image quality that satisfies beginners and casual observers alike.
45° angled eyepiece – comfortable viewing over extended periods
The 45° angled eyepiece of the KOWA TSN-501 enables a relaxed head and neck position during observation – particularly beneficial during longer sessions on a tripod. Whether tracking waders in the reeds or following the action on the sports field, the angled view significantly reduces physical strain. The angled design also excels when observing subjects above the horizon line – such as birds in the canopy or mountain formations.
Waterproof and nitrogen-filled – reliable in any weather
The KOWA TSN-501 is fully waterproof and nitrogen-filled. This prevents internal lens fogging – even during rapid temperature changes, high humidity or sudden rain showers. The 55 mm filter thread accepts protective or polarising filters for enhanced observation in bright conditions. Buy the KOWA TSN-501 Spotting Scope at Swiss-Sale.ch – your Swiss specialist shop for optics and nature observation with fast shipping from Switzerland.
Key features – KOWA TSN-501
- 🔭 20-40x zoom magnification for versatile observation distances
- 🟢 50 mm objective diameter for adequate light gathering
- 📐 45° angled eyepiece for comfortable long-term viewing
- ⚖️ Only 400 g body weight – ultralight for mobile use
- 📏 241 mm overall length – fits any backpack
- 💧 Waterproof and nitrogen-filled – no internal fogging
- 🎯 Close focus from 2.5 m – sharp views even at short range
- 🔍 Multi-coated lenses for high light transmission and contrast
- 🔩 55 mm filter thread for optional protective and polarising filters
- 🇯🇵 KOWA Japan – optics specialist since 1894 with 10-year warranty
Who is the KOWA TSN-501 Spotting Scope for?
The KOWA TSN-501 is designed for beginners and casual observers who want a compact, lightweight spotting scope backed by Japanese optical heritage – without breaking the bank.
Technical Specifications – KOWA TSN-501
| Model | KOWA TSN-501 |
|---|---|
| Product type | Angled spotting scope |
| Magnification | 20-40x (zoom) |
| Objective diameter | 50 mm |
| Viewing angle | 45° angled |
| Optical glass | Standard glass, multi-coated |
| Close focus | 2.5 m |
| Filter thread | 55 mm |
| Waterproof | Yes (nitrogen-filled) |
| Length | 241 mm |
| Weight | 400 g (body) |
| Made in | Japan (KOWA, since 1894) |
| EAN | 4987646102243 |
| Warranty | 10 years (extendable to 15) + 2 years Swiss statutory warranty |
Package Contents – KOWA TSN-501
- 🔭 KOWA TSN-501 spotting scope 20-40x50 with 45° angled eyepiece
- 🎯 Objective lens cap
- 👁️ Eyepiece cap
- 👜 Carrying case
- 📄 User manual
Frequently Asked Questions – KOWA TSN-501 Spotting Scope
Find answers about the KOWA TSN-501 Spotting Scope – from optics and magnification to maintenance and Swiss delivery.
