Kowa
Kowa TSN-99A Prominar
$3750
2 sellers$3750–$4499read
Best Spotting Scopes · head-to-head
Kowa TSN-99A Prominar vs Zeiss Conquest Gavia 85
A sourced, side-by-side comparison. Zeiss Conquest Gavia 85 is cheaper at $1999.99. Every spec and price links to its source.
Zeiss
Zeiss Conquest Gavia 85
$1999.99Cheaper
Which is better: the Kowa TSN-99A Prominar or Zeiss Conquest Gavia 85?
On the specs we track, they're closely matched. The Zeiss Conquest Gavia 85 is the cheaper at $1999.99.
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Full spec sheet
✓ marks the stronger figure where "more" — or "less", for price and weight — is unambiguously better.
| Spec |  Kowa TSN-99A Prominar |  Zeiss Conquest Gavia 85 |
|---|---|---|
| US price | $3750 | $1999.99 |
| Brand | Kowa | Zeiss |
| Released | — | — |
| Objective lens (mm) | 99 | 85 |
| Magnification range | 30-70x | 30-60x |
| Glass type | fluorite | HD |
| Viewing angle | angled | angled |
| Field of view ft1000yd | 105 | 99 |
| Close focus (ft) | — | 10.8 |
| Eye relief (mm) | 17 | — |
| Waterproof | Yes | Yes |
| Nitrogen purged | Yes | Yes |
| Length (in) | — | 15.6 |
| Weight (oz) | — | 60 |
Sources — Kowa TSN-99A Prominar: kowaoptics.com (verified 2026-10-20). Zeiss Conquest Gavia 85: zeiss.com (verified 2026-07-11).
What's the difference between the Kowa TSN-99A Prominar and Zeiss Conquest Gavia 85?
Where the two actually differ on the specs we track (4 of 11). Matching specs are omitted.
- Objective lens (mm): Kowa TSN-99A Prominar 99 vs Zeiss Conquest Gavia 85 85
- Magnification range: Kowa TSN-99A Prominar 30-70x vs Zeiss Conquest Gavia 85 30-60x
- Glass type: Kowa TSN-99A Prominar fluorite vs Zeiss Conquest Gavia 85 HD
- Field of view ft1000yd: Kowa TSN-99A Prominar 105 vs Zeiss Conquest Gavia 85 99