telescopecomparison · 2-way
Askar 120APO vs Askar 130PHQ
Askar
120APO
Best suited for intermediate imagers building a versatile kit running a backyard imaging setup.
Askar
130PHQ
Best suited for intermediate imagers building a versatile kit running a backyard imaging setup.
Key differences
-16% focal length
-8% aperture
Faster by 0.7 f-stops
Specifications
| Specification | Askar 120APO | Askar 130PHQ |
|---|---|---|
| Optics | ||
| Type | Refractor | refractor |
| Optical design | Triplet APO | Petzval quintuplet FPL-51 |
| Aperture | 120mm | 130mm |
| Focal length | 840mm | 1000mm |
| Native f/ratio | f/7.0 | f/7.7 |
| Image circle | 44mm | 60mm |
| Full-frame support | Yes | Yes |
| Physical | ||
| Weight | 8.5kg | 10.2kg |
Advantages of Askar 120APO
- Wider field — 840mm vs 1000mm focal length
- Faster optics at f/7 vs f/7.7
- Lighter (8.5kg vs 10.2kg) — easier to travel with
Advantages of Askar 130PHQ
- Tighter framing — 1000mm vs 840mm focal length
- Larger image circle (60mm) — supports bigger sensors
Best for — Askar 120APO
- Medium-sized galaxies and planetary nebulae
- Full-frame astro cameras and DSLRs
Best for — Askar 130PHQ
- Medium-sized galaxies and planetary nebulae
- Full-frame astro cameras and DSLRs
Askar 120APO — typical FOV & scale
- With Full-frame (36×24mm, 3.76µm)FOV: 2.46° × 1.64°Scale: 0.92"/px
- With APS-C (23.5×15.7mm, 3.76µm)FOV: 1.60° × 1.07°Scale: 0.92"/px
- With IMX533 square (11.3×11.3mm, 3.76µm)FOV: 0.77° × 0.77°Scale: 0.92"/px
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 120APO — recommended user
Best suited for intermediate imagers building a versatile kit running a backyard imaging setup.
Askar 130PHQ — recommended user
Best suited for intermediate imagers building a versatile kit running a backyard imaging setup.