telescopecomparison · 2-way
Sky-Watcher Quattro 250P vs Tele Vue NP127fli
Sky-Watcher
Quattro 250P
Best suited for intermediate imagers building a versatile kit running a permanent observatory setup.
Tele Vue
NP127fli
Best suited for intermediate imagers building a versatile kit running a backyard imaging setup.
Key differences
+52% focal length
+97% aperture
Faster by 1.2 f-stops
Specifications
| Specification | Sky-Watcher Quattro 250P | Tele Vue NP127fli |
|---|---|---|
| Optics | ||
| Type | newtonian | refractor |
| Optical design | Newtonian astrograph | Nagler-Petzval |
| Aperture | 250mm | 127mm |
| Focal length | 1000mm | 660mm |
| Native f/ratio | f/4.0 | f/5.2 |
| Image circle | — | 52mm |
| Full-frame support | Yes | Yes |
| Physical | ||
| Weight | 15.5kg | 9.5kg |
Advantages of Sky-Watcher Quattro 250P
- Tighter framing — 1000mm vs 660mm focal length
- 97% more light-gathering aperture
- Faster optics at f/4 vs f/5.2
Advantages of Tele Vue NP127fli
- Wider field — 660mm vs 1000mm focal length
- Larger image circle (52mm) — supports bigger sensors
- Lighter (9.5kg vs 15.5kg) — easier to travel with
Best for — Sky-Watcher Quattro 250P
- Medium-sized galaxies and planetary nebulae
- Fast imaging — short exposures per sub
- Faint-object imaging under dark skies
- Full-frame astro cameras and DSLRs
Best for — Tele Vue NP127fli
- Large emission nebulae and star clusters
- Full-frame astro cameras and DSLRs
Sky-Watcher Quattro 250P — typical FOV & scale
- With Full-frame (36×24mm, 3.76µm)FOV: 2.06° × 1.38°Scale: 0.78"/px
- With APS-C (23.5×15.7mm, 3.76µm)FOV: 1.35° × 0.90°Scale: 0.78"/px
- With IMX533 square (11.3×11.3mm, 3.76µm)FOV: 0.65° × 0.65°Scale: 0.78"/px
Tele Vue NP127fli — typical FOV & scale
- With Full-frame (36×24mm, 3.76µm)FOV: 3.13° × 2.08°Scale: 1.18"/px
- With APS-C (23.5×15.7mm, 3.76µm)FOV: 2.04° × 1.36°Scale: 1.18"/px
- With IMX533 square (11.3×11.3mm, 3.76µm)FOV: 0.98° × 0.98°Scale: 1.18"/px
Sky-Watcher Quattro 250P — recommended user
Best suited for intermediate imagers building a versatile kit running a permanent observatory setup.
Tele Vue NP127fli — recommended user
Best suited for intermediate imagers building a versatile kit running a backyard imaging setup.