telescopecomparison · 2-way
Sky-Watcher Quattro 200P vs Askar 151PHQ
Sky-Watcher
Quattro 200P
Best suited for intermediate imagers building a versatile kit running a backyard imaging setup.
Askar
151PHQ
Best suited for intermediate imagers building a versatile kit running a permanent observatory setup.
Key differences
-24% focal length
+32% aperture
Faster by 3.0 f-stops
Specifications
| Specification | Sky-Watcher Quattro 200P | Askar 151PHQ |
|---|---|---|
| Optics | ||
| Type | Newtonian | refractor |
| Optical design | Imaging Newtonian | Petzval quintuplet FPL-51 |
| Aperture | 200mm | 151mm |
| Focal length | 800mm | 1057mm |
| Native f/ratio | f/4.0 | f/7.0 |
| Image circle | 32mm | 60mm |
| Full-frame support | No | Yes |
| Physical | ||
| Weight | 10.5kg | 15.5kg |
Advantages of Sky-Watcher Quattro 200P
- Wider field — 800mm vs 1057mm focal length
- 32% more light-gathering aperture
- Faster optics at f/4 vs f/7
- Lighter (10.5kg vs 15.5kg) — easier to travel with
Advantages of Askar 151PHQ
- Tighter framing — 1057mm vs 800mm focal length
- Larger image circle (60mm) — supports bigger sensors
Best for — Sky-Watcher Quattro 200P
- Medium-sized galaxies and planetary nebulae
- Fast imaging — short exposures per sub
- Faint-object imaging under dark skies
Best for — Askar 151PHQ
- Medium-sized galaxies and planetary nebulae
- Full-frame astro cameras and DSLRs
Sky-Watcher Quattro 200P — typical FOV & scale
- With Full-frame (36×24mm, 3.76µm)FOV: 2.58° × 1.72°Scale: 0.97"/px
- With APS-C (23.5×15.7mm, 3.76µm)FOV: 1.68° × 1.12°Scale: 0.97"/px
- With IMX533 square (11.3×11.3mm, 3.76µm)FOV: 0.81° × 0.81°Scale: 0.97"/px
Askar 151PHQ — typical FOV & scale
- With Full-frame (36×24mm, 3.76µm)FOV: 1.95° × 1.30°Scale: 0.73"/px
- With APS-C (23.5×15.7mm, 3.76µm)FOV: 1.27° × 0.85°Scale: 0.73"/px
- With IMX533 square (11.3×11.3mm, 3.76µm)FOV: 0.61° × 0.61°Scale: 0.73"/px
Sky-Watcher Quattro 200P — recommended user
Best suited for intermediate imagers building a versatile kit running a backyard imaging setup.
Askar 151PHQ — recommended user
Best suited for intermediate imagers building a versatile kit running a permanent observatory setup.