telescopecomparison · 2-way
ZWO Seestar S30 vs ZWO Seestar S50
Key differences
-40% focal length
-40% aperture
Specifications
| Specification | ZWO Seestar S30 | ZWO Seestar S50 |
|---|---|---|
| Optics | ||
| Type | smart-telescope | smart-telescope |
| Optical design | Apo triplet all-in-one | Apo triplet all-in-one |
| Aperture | 30mm | 50mm |
| Focal length | 150mm | 250mm |
| Native f/ratio | f/5.0 | f/5.0 |
| Image circle | — | — |
| Full-frame support | No | No |
| Physical | ||
| Weight | 1.6kg | 2.5kg |
Advantages of ZWO Seestar S30
- Wider field — 150mm vs 250mm focal length
- Lighter (1.65kg vs 2.5kg) — easier to travel with
Advantages of ZWO Seestar S50
- Tighter framing — 250mm vs 150mm focal length
- 67% more light-gathering aperture
Best for — ZWO Seestar S30
- Wide-field nebulae and Milky Way regions
- Fast imaging — short exposures per sub
Best for — ZWO Seestar S50
- Wide-field nebulae and Milky Way regions
- Fast imaging — short exposures per sub
ZWO Seestar S30 — typical FOV & scale
- With Full-frame (36×24mm, 3.76µm)FOV: 13.75° × 9.17°Scale: 5.17"/px
- With APS-C (23.5×15.7mm, 3.76µm)FOV: 8.98° × 6.00°Scale: 5.17"/px
- With IMX533 square (11.3×11.3mm, 3.76µm)FOV: 4.32° × 4.32°Scale: 5.17"/px
ZWO Seestar S50 — typical FOV & scale
- With Full-frame (36×24mm, 3.76µm)FOV: 8.25° × 5.50°Scale: 3.10"/px
- With APS-C (23.5×15.7mm, 3.76µm)FOV: 5.39° × 3.60°Scale: 3.10"/px
- With IMX533 square (11.3×11.3mm, 3.76µm)FOV: 2.59° × 2.59°Scale: 3.10"/px
ZWO Seestar S30 — recommended user
Best suited for beginners and wide-field enthusiasts running a portable travel rig.
ZWO Seestar S50 — recommended user
Best suited for beginners and wide-field enthusiasts running a portable travel rig.