telescopecomparison · 2-way
Askar SQA106 vs William Optics Pleiades 111
Askar
SQA106
Best suited for intermediate imagers building a versatile kit running a backyard imaging setup.
William Optics
Pleiades 111
Best suited for intermediate imagers building a versatile kit running a backyard imaging setup.
Key differences
+10% focal length
Slower by 0.7 f-stops
Specifications
| Specification | Askar SQA106 | William Optics Pleiades 111 |
|---|---|---|
| Optics | ||
| Type | refractor | astrograph |
| Optical design | Quadruplet astrograph FPL-51 | Astrograph (7-element) |
| Aperture | 106mm | 111mm |
| Focal length | 580mm | 528mm |
| Native f/ratio | f/5.5 | f/4.8 |
| Image circle | 60mm | 45mm |
| Full-frame support | Yes | Yes |
| Physical | ||
| Weight | 6.5kg | 8.0kg |
Advantages of Askar SQA106
- Larger image circle (60mm) — supports bigger sensors
- Lighter (6.5kg vs 7.95kg) — easier to travel with
Advantages of William Optics Pleiades 111
- Faster optics at f/4.8 vs f/5.5
Best for — Askar SQA106
- Large emission nebulae and star clusters
- Full-frame astro cameras and DSLRs
Best for — William Optics Pleiades 111
- Large emission nebulae and star clusters
- Fast imaging — short exposures per sub
- 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
William Optics Pleiades 111 — typical FOV & scale
- With Full-frame (36×24mm, 3.76µm)FOV: 3.91° × 2.60°Scale: 1.47"/px
- With APS-C (23.5×15.7mm, 3.76µm)FOV: 2.55° × 1.70°Scale: 1.47"/px
- With IMX533 square (11.3×11.3mm, 3.76µm)FOV: 1.23° × 1.23°Scale: 1.47"/px
Askar SQA106 — recommended user
Best suited for intermediate imagers building a versatile kit running a backyard imaging setup.
William Optics Pleiades 111 — recommended user
Best suited for intermediate imagers building a versatile kit running a backyard imaging setup.
