telescopecomparison · 2-way
Sky-Watcher Quattro 150P vs Takahashi Epsilon-180ED
Sky-Watcher
Quattro 150P
Best suited for intermediate imagers building a versatile kit running a backyard imaging setup.
Takahashi
Epsilon-180ED
Best suited for beginners and wide-field enthusiasts running a permanent observatory setup.
Key differences
+20% focal length
-17% aperture
Slower by 1.2 f-stops
Specifications
| Specification | Sky-Watcher Quattro 150P | Takahashi Epsilon-180ED |
|---|---|---|
| Optics | ||
| Type | newtonian | astrograph |
| Optical design | Newtonian astrograph | Hyperbolic Newtonian |
| Aperture | 150mm | 180mm |
| Focal length | 600mm | 500mm |
| Native f/ratio | f/4.0 | f/2.8 |
| Image circle | — | 44mm |
| Full-frame support | No | Yes |
| Physical | ||
| Weight | 7.5kg | 12.5kg |
Advantages of Sky-Watcher Quattro 150P
- Tighter framing — 600mm vs 500mm focal length
- Lighter (7.5kg vs 12.5kg) — easier to travel with
Advantages of Takahashi Epsilon-180ED
- Wider field — 500mm vs 600mm focal length
- 20% more light-gathering aperture
- Faster optics at f/2.8 vs f/4
- Larger image circle (44mm) — supports bigger sensors
Best for — Sky-Watcher Quattro 150P
- Large emission nebulae and star clusters
- Fast imaging — short exposures per sub
Best for — Takahashi Epsilon-180ED
- Large emission nebulae and star clusters
- Fast imaging — short exposures per sub
- Full-frame astro cameras and DSLRs
Sky-Watcher Quattro 150P — typical FOV & scale
- With Full-frame (36×24mm, 3.76µm)FOV: 3.44° × 2.29°Scale: 1.29"/px
- With APS-C (23.5×15.7mm, 3.76µm)FOV: 2.24° × 1.50°Scale: 1.29"/px
- With IMX533 square (11.3×11.3mm, 3.76µm)FOV: 1.08° × 1.08°Scale: 1.29"/px
Takahashi Epsilon-180ED — typical FOV & scale
- With Full-frame (36×24mm, 3.76µm)FOV: 4.13° × 2.75°Scale: 1.55"/px
- With APS-C (23.5×15.7mm, 3.76µm)FOV: 2.69° × 1.80°Scale: 1.55"/px
- With IMX533 square (11.3×11.3mm, 3.76µm)FOV: 1.29° × 1.29°Scale: 1.55"/px
Sky-Watcher Quattro 150P — recommended user
Best suited for intermediate imagers building a versatile kit running a backyard imaging setup.
Takahashi Epsilon-180ED — recommended user
Best suited for beginners and wide-field enthusiasts running a permanent observatory setup.