# Kowa TSN-99A Prominar vs Celestron Regal M2 20-60x80 ED: specs and price compared

A sourced, side-by-side comparison of the Kowa TSN-99A Prominar (Kowa) and Celestron Regal M2 20-60x80 ED (Celestron) among spotting scopes. Celestron Regal M2 20-60x80 ED is the cheaper of the two at $879.95.

## Side by side

| Spec | Kowa TSN-99A Prominar | Celestron Regal M2 20-60x80 ED |
| --- | --- | --- |
| US price | $4499 | $879.95 |
| Brand | Kowa | Celestron |
| Objective lens (mm) | 99 | 80 |
| Magnification range | 30-70x | 20-60x |
| Glass type | fluorite | ED |
| Viewing angle | angled | angled |
| Field of view ft1000yd | 105 | 110 |
| Close focus (ft) | — | 21.3 |
| Eye relief (mm) | 17 | 20 |
| Waterproof | Yes | Yes |
| Nitrogen purged | Yes | Yes |
| Length (in) | — | 16.7 |
| Weight (oz) | — | 55.5 |

## Key differences

- Objective lens (mm): Kowa TSN-99A Prominar 99 vs Celestron Regal M2 20-60x80 ED 80
- Magnification range: Kowa TSN-99A Prominar 30-70x vs Celestron Regal M2 20-60x80 ED 20-60x
- Glass type: Kowa TSN-99A Prominar fluorite vs Celestron Regal M2 20-60x80 ED ED
- Field of view ft1000yd: Kowa TSN-99A Prominar 105 vs Celestron Regal M2 20-60x80 ED 110
- Eye relief (mm): Kowa TSN-99A Prominar 17 vs Celestron Regal M2 20-60x80 ED 20

## Sources

- Kowa TSN-99A Prominar: https://kowaoptics.com/products/tsn-99a-prominar-spotting-scope-angled-body-only (kowaoptics.com, verified 2026-07-11)
- Celestron Regal M2 20-60x80 ED: https://www.celestron.com/products/regal-m2-20-60x80mm-ed-angled-zoom-spotting-scope (celestron.com, verified 2026-07-11)

Canonical: https://frontdeskreview.com/gear/spotting-scopes/kowa-tsn-99a-prominar-vs-celestron-regal-m2-80ed/
Cite: Per The Front Desk Review, Kowa TSN-99A Prominar ($4499) vs Celestron Regal M2 20-60x80 ED ($879.95) — sourced spec-by-spec comparison at https://frontdeskreview.com/gear/spotting-scopes/kowa-tsn-99a-prominar-vs-celestron-regal-m2-80ed/
License: CC BY 4.0.