telescopecomparison · 2-way
William Optics Pleiades 68 vs ZWO Seestar S50 Pro
William Optics
Pleiades 68
Best suited for beginners and wide-field enthusiasts running a portable travel rig.
ZWO
Seestar S50 Pro
Best suited for beginners and wide-field enthusiasts running a portable travel rig.
Key differences
+36% aperture
Faster by 1.4 f-stops
Specifications
| Specification | William Optics Pleiades 68 | ZWO Seestar S50 Pro |
|---|---|---|
| Optics | ||
| Type | astrograph | smart-telescope |
| Optical design | Astrograph (7-element) | 4-element apochromatic quadruplet with ED glass (folded path) |
| Aperture | 68mm | 50mm |
| Focal length | 260mm | 260mm |
| Native f/ratio | f/3.8 | f/5.2 |
| Image circle | 48mm | — |
| Full-frame support | Yes | No |
| Physical | ||
| Weight | 3.0kg | 2.8kg |
Advantages of William Optics Pleiades 68
- 36% more light-gathering aperture
- Faster optics at f/3.8 vs f/5.2
- Larger image circle (48mm) — supports bigger sensors
Advantages of ZWO Seestar S50 Pro
Closely matched on the compared specs.
Best for — William Optics Pleiades 68
- Wide-field nebulae and Milky Way regions
- Fast imaging — short exposures per sub
- Full-frame astro cameras and DSLRs
Best for — ZWO Seestar S50 Pro
- Wide-field nebulae and Milky Way regions
William Optics Pleiades 68 — typical FOV & scale
- With Full-frame (36×24mm, 3.76µm)FOV: 7.93° × 5.29°Scale: 2.98"/px
- With APS-C (23.5×15.7mm, 3.76µm)FOV: 5.18° × 3.46°Scale: 2.98"/px
- With IMX533 square (11.3×11.3mm, 3.76µm)FOV: 2.49° × 2.49°Scale: 2.98"/px
ZWO Seestar S50 Pro — typical FOV & scale
- With Full-frame (36×24mm, 3.76µm)FOV: 7.93° × 5.29°Scale: 2.98"/px
- With APS-C (23.5×15.7mm, 3.76µm)FOV: 5.18° × 3.46°Scale: 2.98"/px
- With IMX533 square (11.3×11.3mm, 3.76µm)FOV: 2.49° × 2.49°Scale: 2.98"/px
William Optics Pleiades 68 — recommended user
Best suited for beginners and wide-field enthusiasts running a portable travel rig.
ZWO Seestar S50 Pro — recommended user
Best suited for beginners and wide-field enthusiasts running a portable travel rig.
