telescopecomparison · 2-way
Celestron C6 SCT vs Askar SQA106
Askar
SQA106
Best suited for intermediate imagers building a versatile kit running a backyard imaging setup.
Key differences
+159% focal length
+42% aperture
Slower by 4.5 f-stops
Specifications
| Specification | Celestron C6 SCT | Askar SQA106 |
|---|---|---|
| Optics | ||
| Type | sct | refractor |
| Optical design | Schmidt-Cassegrain | Quadruplet astrograph FPL-51 |
| Aperture | 150mm | 106mm |
| Focal length | 1500mm | 580mm |
| Native f/ratio | f/10.0 | f/5.5 |
| Image circle | — | 60mm |
| Full-frame support | No | Yes |
| Physical | ||
| Weight | 4.5kg | 6.5kg |
Advantages of Celestron C6 SCT
- Tighter framing — 1500mm vs 580mm focal length
- 42% more light-gathering aperture
- Lighter (4.5kg vs 6.5kg) — easier to travel with
Advantages of Askar SQA106
- Wider field — 580mm vs 1500mm focal length
- Faster optics at f/5.5 vs f/10
- Larger image circle (60mm) — supports bigger sensors
Best for — Celestron C6 SCT
- Small galaxies, planetary nebulae, lunar & planetary detail
- High-resolution long-exposure work
Best for — Askar SQA106
- Large emission nebulae and star clusters
- Full-frame astro cameras and DSLRs
Celestron C6 SCT — typical FOV & scale
- With Full-frame (36×24mm, 3.76µm)FOV: 1.38° × 0.92°Scale: 0.52"/px
- With APS-C (23.5×15.7mm, 3.76µm)FOV: 0.90° × 0.60°Scale: 0.52"/px
- With IMX533 square (11.3×11.3mm, 3.76µm)FOV: 0.43° × 0.43°Scale: 0.52"/px
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
Celestron C6 SCT — recommended user
Best suited for experienced imagers chasing detail running a portable travel rig.
Askar SQA106 — recommended user
Best suited for intermediate imagers building a versatile kit running a backyard imaging setup.