Comparison
Seestar S50 vs Vespera II
Vespera II has the wider field (2.5° × 1.4° vs 1.29° × 0.73°), so it frames large targets such as the Andromeda Galaxy more easily; Seestar S50 shows smaller objects at a larger scale. Of our 20 popular targets, Seestar S50 frames 9 well and Vespera II 7.
- Wider field: Vespera II.
- Lower official price: Seestar S50 ($549).
- Lighter: Seestar S50 (2.5 kg).
| Spec | Seestar S50 | Vespera II |
|---|---|---|
| Aperture | 50 mm | 50 mm |
| Focal length | 250 mm | 250 mm |
| Native field of view | 1.29° × 0.73° | 2.5° × 1.4° |
| Targets framed well | 9 / 20 | 7 / 20 |
| Weight | 2.5 kg | 5 kg |
| Wide-angle camera | Not listed | Not listed |
| Mosaic mode | Not listed | Yes |
| Official price | $549 | $1,590 |
Both frames on the same targets
Solid gold: Seestar S50. Dashed blue: Vespera II.
Where they differ
| Target | Seestar S50 | Vespera II |
|---|---|---|
| M42 Orion Nebula | larger than the frame | fits well |
| M33 Triangulum Galaxy | larger than the frame | fits well |
| M51 Whirlpool Galaxy | fits well | small in the frame |
| M82 Cigar Galaxy | fits well | small in the frame |
| M17 Omega Nebula | larger than the frame | fits well |
| M63 Sunflower Galaxy | fits well | small in the frame |
| M64 Black Eye Galaxy | fits well | small in the frame |
| M104 Sombrero Galaxy | fits well | small in the frame |
Where to buy the Seestar S50
Where to buy the Vespera II
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Questions and answers
- Which is better for large targets, the Seestar S50 or the Vespera II?
- The Vespera II, because it has the wider field of view.
- Which frames more popular targets well?
- The Seestar S50 (9 of 20, against 7).
- Which is cheaper?
- The Seestar S50, at an official price of $549.
- Which is lighter?
- The Seestar S50, at about 2.5 kg.