Vortex Optics
Vortex Razor HD 27-60x85
$2399.99Cheaper
Released 2016
Best Spotting Scopes · head-to-head
Vortex Razor HD 27-60x85 vs Kowa TSN-99A Prominar
A sourced, side-by-side comparison. Vortex Razor HD 27-60x85 is cheaper at $2399.99. Every spec and price links to its source.
Kowa
Kowa TSN-99A Prominar
$3750
2 sellers$3750–$4499read
Which is better: the Vortex Razor HD 27-60x85 or Kowa TSN-99A Prominar?
On the specs we track, they're closely matched. The Vortex Razor HD 27-60x85 is the cheaper at $2399.99.
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Full spec sheet
✓ marks the stronger figure where "more" — or "less", for price and weight — is unambiguously better.
| Spec |  Vortex Razor HD 27-60x85 |  Kowa TSN-99A Prominar |
|---|---|---|
| US price | $2399.99 | $3750 |
| Brand | Vortex Optics | Kowa |
| Released | 2016 | — |
| Objective lens (mm) | 85 | 99 |
| Magnification range | 27-60x | 30-70x |
| Glass type | HD | fluorite |
| Viewing angle | both | angled |
| Field of view ft1000yd | 117 | 105 |
| Close focus (ft) | 16.4 | — |
| Eye relief (mm) | 17 | 17 |
| Waterproof | Yes | Yes |
| Nitrogen purged | Yes | Yes |
| Length (in) | 15.5 | — |
| Weight (oz) | 65.6 | — |
Sources — Vortex Razor HD 27-60x85: vortexoptics.com (verified 2026-10-20). Kowa TSN-99A Prominar: kowaoptics.com (verified 2026-10-20).
What's the difference between the Vortex Razor HD 27-60x85 and Kowa TSN-99A Prominar?
Where the two actually differ on the specs we track (5 of 11). Matching specs are omitted.
- Objective lens (mm): Vortex Razor HD 27-60x85 85 vs Kowa TSN-99A Prominar 99
- Magnification range: Vortex Razor HD 27-60x85 27-60x vs Kowa TSN-99A Prominar 30-70x
- Glass type: Vortex Razor HD 27-60x85 HD vs Kowa TSN-99A Prominar fluorite
- Viewing angle: Vortex Razor HD 27-60x85 both vs Kowa TSN-99A Prominar angled
- Field of view ft1000yd: Vortex Razor HD 27-60x85 117 vs Kowa TSN-99A Prominar 105