telescopecomparison · 2-way
ZWO Seestar S30 vs DwarfLab Dwarf II
Key differences
+50% focal length
+25% aperture
Slower by 0.8 f-stops
Specifications
| Specification | ZWO Seestar S30 | DwarfLab Dwarf II |
|---|---|---|
| Optics | ||
| Type | smart-telescope | smart-telescope |
| Optical design | Apo triplet all-in-one | Apo doublet all-in-one |
| Aperture | 30mm | 24mm |
| Focal length | 150mm | 100mm |
| Native f/ratio | f/5.0 | f/4.2 |
| Image circle | — | — |
| Full-frame support | No | No |
| Physical | ||
| Weight | 1.6kg | 1.2kg |
Advantages of ZWO Seestar S30
- Tighter framing — 150mm vs 100mm focal length
- 25% more light-gathering aperture
Advantages of DwarfLab Dwarf II
- Wider field — 100mm vs 150mm focal length
- Faster optics at f/4.2 vs f/5
- Lighter (1.2kg vs 1.65kg) — easier to travel with
Best for — ZWO Seestar S30
- Wide-field nebulae and Milky Way regions
- Fast imaging — short exposures per sub
Best for — DwarfLab Dwarf II
- 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
DwarfLab Dwarf II — typical FOV & scale
- With Full-frame (36×24mm, 3.76µm)FOV: 20.63° × 13.75°Scale: 7.76"/px
- With APS-C (23.5×15.7mm, 3.76µm)FOV: 13.47° × 9.00°Scale: 7.76"/px
- With IMX533 square (11.3×11.3mm, 3.76µm)FOV: 6.47° × 6.47°Scale: 7.76"/px
ZWO Seestar S30 — recommended user
Best suited for beginners and wide-field enthusiasts running a portable travel rig.
DwarfLab Dwarf II — recommended user
Best suited for beginners and wide-field enthusiasts running a portable travel rig.