telescopecomparison · 2-way
Askar SQA106 vs Askar 151PHQ
Askar
SQA106
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
-45% focal length
-30% aperture
Faster by 1.5 f-stops
Specifications
| Specification | Askar SQA106 | Askar 151PHQ |
|---|---|---|
| Optics | ||
| Type | refractor | refractor |
| Optical design | Quadruplet astrograph FPL-51 | Petzval quintuplet FPL-51 |
| Aperture | 106mm | 151mm |
| Focal length | 580mm | 1057mm |
| Native f/ratio | f/5.5 | f/7.0 |
| Image circle | 60mm | 60mm |
| Full-frame support | Yes | Yes |
| Physical | ||
| Weight | 6.5kg | 15.5kg |
Advantages of Askar SQA106
- Wider field — 580mm vs 1057mm focal length
- Faster optics at f/5.5 vs f/7
- Lighter (6.5kg vs 15.5kg) — easier to travel with
Advantages of Askar 151PHQ
- Tighter framing — 1057mm vs 580mm focal length
- 42% more light-gathering aperture
Best for — Askar SQA106
- Large emission nebulae and star clusters
- Full-frame astro cameras and DSLRs
Best for — Askar 151PHQ
- Medium-sized galaxies and planetary nebulae
- Full-frame astro cameras and DSLRs
Askar SQA106 — typical FOV & scale
- With Full-frame (36×24mm, 3.76µm)FOV: 3.56° × 2.37°Scale: 1.34"/px
- With APS-C (23.5×15.7mm, 3.76µm)FOV: 2.32° × 1.55°Scale: 1.34"/px
- With IMX533 square (11.3×11.3mm, 3.76µm)FOV: 1.12° × 1.12°Scale: 1.34"/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 SQA106 — 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.