telescopecomparison · 2-way
Askar 130PHQ vs Askar 151PHQ
Askar
130PHQ
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
-5% focal length
-14% aperture
Slower by 0.7 f-stops
Specifications
| Specification | Askar 130PHQ | Askar 151PHQ |
|---|---|---|
| Optics | ||
| Type | refractor | refractor |
| Optical design | Petzval quintuplet FPL-51 | Petzval quintuplet FPL-51 |
| Aperture | 130mm | 151mm |
| Focal length | 1000mm | 1057mm |
| Native f/ratio | f/7.7 | f/7.0 |
| Image circle | 60mm | 60mm |
| Full-frame support | Yes | Yes |
| Physical | ||
| Weight | 10.2kg | 15.5kg |
Advantages of Askar 130PHQ
- Lighter (10.2kg vs 15.5kg) — easier to travel with
Advantages of Askar 151PHQ
- 16% more light-gathering aperture
- Faster optics at f/7 vs f/7.7
Best for — Askar 130PHQ
- Medium-sized galaxies and planetary nebulae
- Full-frame astro cameras and DSLRs
Best for — Askar 151PHQ
- Medium-sized galaxies and planetary nebulae
- Full-frame astro cameras and DSLRs
Askar 130PHQ — 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
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
Askar 130PHQ — 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.