Nikon
Nikon Monarch Fieldscope 20-60x82 ED
$1699.95Cheaper
Best Spotting Scopes · head-to-head
Nikon Monarch Fieldscope 20-60x82 ED vs Kowa TSN-99A Prominar
A sourced, side-by-side comparison. Nikon Monarch Fieldscope 20-60x82 ED is cheaper at $1699.95. Every spec and price links to its source.
Kowa
Kowa TSN-99A Prominar
$3750
2 sellers$3750–$4499read
Which is better: the Nikon Monarch Fieldscope 20-60x82 ED or Kowa TSN-99A Prominar?
On the specs we track, they're closely matched. The Nikon Monarch Fieldscope 20-60x82 ED is the cheaper at $1699.95.
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Full spec sheet
✓ marks the stronger figure where "more" — or "less", for price and weight — is unambiguously better.
| Spec |  Nikon Monarch Fieldscope 20-60x82 ED |  Kowa TSN-99A Prominar |
|---|---|---|
| US price | $1699.95 | $3750 |
| Brand | Nikon | Kowa |
| Released | — | — |
| Objective lens (mm) | 82 | 99 |
| Magnification range | 20-60x | 30-70x |
| Glass type | ED | fluorite |
| Viewing angle | both | angled |
| Field of view ft1000yd | 111 | 105 |
| Close focus (ft) | 16.4 | — |
| Eye relief (mm) | 16.1 | 17 |
| Waterproof | Yes | Yes |
| Nitrogen purged | Yes | Yes |
| Length (in) | 13.1 | — |
| Weight (oz) | 57.8 | — |
Sources — Nikon Monarch Fieldscope 20-60x82 ED: nikonusa.com (verified 2026-10-03). Kowa TSN-99A Prominar: kowaoptics.com (verified 2026-10-20).
What's the difference between the Nikon Monarch Fieldscope 20-60x82 ED and Kowa TSN-99A Prominar?
Where the two actually differ on the specs we track (6 of 11). Matching specs are omitted.
- Objective lens (mm): Nikon Monarch Fieldscope 20-60x82 ED 82 vs Kowa TSN-99A Prominar 99
- Magnification range: Nikon Monarch Fieldscope 20-60x82 ED 20-60x vs Kowa TSN-99A Prominar 30-70x
- Glass type: Nikon Monarch Fieldscope 20-60x82 ED ED vs Kowa TSN-99A Prominar fluorite
- Viewing angle: Nikon Monarch Fieldscope 20-60x82 ED both vs Kowa TSN-99A Prominar angled
- Field of view ft1000yd: Nikon Monarch Fieldscope 20-60x82 ED 111 vs Kowa TSN-99A Prominar 105
- Eye relief (mm): Nikon Monarch Fieldscope 20-60x82 ED 16.1 vs Kowa TSN-99A Prominar 17