telescopecomparison · 2-way
Astro-Tech AT10RC vs Takahashi Mewlon-210
Astro-Tech
AT10RC
Best suited for experienced imagers chasing detail running a permanent observatory setup.
Takahashi
Mewlon-210
Best suited for experienced imagers chasing detail running a permanent observatory setup.
Key differences
-17% focal length
+21% aperture
Faster by 3.5 f-stops
Specifications
| Specification | Astro-Tech AT10RC | Takahashi Mewlon-210 |
|---|---|---|
| Optics | ||
| Type | ritchey-chretien | cassegrain |
| Optical design | Truss Ritchey-Chrétien | Dall-Kirkham |
| Aperture | 254mm | 210mm |
| Focal length | 2000mm | 2415mm |
| Native f/ratio | f/8.0 | f/11.5 |
| Image circle | — | — |
| Full-frame support | Yes | No |
| Physical | ||
| Weight | 17.7kg | 15.5kg |
Advantages of Astro-Tech AT10RC
- Wider field — 2000mm vs 2415mm focal length
- 21% more light-gathering aperture
- Faster optics at f/8 vs f/11.5
Advantages of Takahashi Mewlon-210
- Tighter framing — 2415mm vs 2000mm focal length
Best for — Astro-Tech AT10RC
- Small galaxies, planetary nebulae, lunar & planetary detail
- High-resolution long-exposure work
- Faint-object imaging under dark skies
- Full-frame astro cameras and DSLRs
Best for — Takahashi Mewlon-210
- Small galaxies, planetary nebulae, lunar & planetary detail
- High-resolution long-exposure work
- Faint-object imaging under dark skies
Astro-Tech AT10RC — typical FOV & scale
- With Full-frame (36×24mm, 3.76µm)FOV: 1.03° × 0.69°Scale: 0.39"/px
- With APS-C (23.5×15.7mm, 3.76µm)FOV: 0.67° × 0.45°Scale: 0.39"/px
- With IMX533 square (11.3×11.3mm, 3.76µm)FOV: 0.32° × 0.32°Scale: 0.39"/px
Takahashi Mewlon-210 — typical FOV & scale
- With Full-frame (36×24mm, 3.76µm)FOV: 0.85° × 0.57°Scale: 0.32"/px
- With APS-C (23.5×15.7mm, 3.76µm)FOV: 0.56° × 0.37°Scale: 0.32"/px
- With IMX533 square (11.3×11.3mm, 3.76µm)FOV: 0.27° × 0.27°Scale: 0.32"/px
Astro-Tech AT10RC — recommended user
Best suited for experienced imagers chasing detail running a permanent observatory setup.
Takahashi Mewlon-210 — recommended user
Best suited for experienced imagers chasing detail running a permanent observatory setup.