telescopecomparison · 2-way
Takahashi Mewlon-210 vs Sky-Watcher Esprit 150ED
Takahashi
Mewlon-210
Best suited for experienced imagers chasing detail running a permanent observatory setup.
Sky-Watcher
Esprit 150ED
Best suited for intermediate imagers building a versatile kit running a permanent observatory setup.
Key differences
+130% focal length
+40% aperture
Slower by 4.5 f-stops
Specifications
| Specification | Takahashi Mewlon-210 | Sky-Watcher Esprit 150ED |
|---|---|---|
| Optics | ||
| Type | cassegrain | Refractor |
| Optical design | Dall-Kirkham | Triplet APO |
| Aperture | 210mm | 150mm |
| Focal length | 2415mm | 1050mm |
| Native f/ratio | f/11.5 | f/7.0 |
| Image circle | — | 44mm |
| Full-frame support | No | Yes |
| Physical | ||
| Weight | 15.5kg | 17.0kg |
Advantages of Takahashi Mewlon-210
- Tighter framing — 2415mm vs 1050mm focal length
- 40% more light-gathering aperture
Advantages of Sky-Watcher Esprit 150ED
- Wider field — 1050mm vs 2415mm focal length
- Faster optics at f/7 vs f/11.5
- Larger image circle (44mm) — supports bigger sensors
Best for — Takahashi Mewlon-210
- Small galaxies, planetary nebulae, lunar & planetary detail
- High-resolution long-exposure work
- Faint-object imaging under dark skies
Best for — Sky-Watcher Esprit 150ED
- Medium-sized galaxies and planetary nebulae
- Full-frame astro cameras and DSLRs
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
Sky-Watcher Esprit 150ED — typical FOV & scale
- With Full-frame (36×24mm, 3.76µm)FOV: 1.96° × 1.31°Scale: 0.74"/px
- With APS-C (23.5×15.7mm, 3.76µm)FOV: 1.28° × 0.86°Scale: 0.74"/px
- With IMX533 square (11.3×11.3mm, 3.76µm)FOV: 0.62° × 0.62°Scale: 0.74"/px
Takahashi Mewlon-210 — recommended user
Best suited for experienced imagers chasing detail running a permanent observatory setup.
Sky-Watcher Esprit 150ED — recommended user
Best suited for intermediate imagers building a versatile kit running a permanent observatory setup.