Comparison

Seestar S30 vs Vespera 3

Vespera 3 has the wider field (2.5° × 1.4° vs 2.14° × 1.21°), so it frames large targets such as the Andromeda Galaxy more easily; Seestar S30 shows smaller objects at a larger scale. Of our 20 popular targets, Seestar S30 frames 6 well and Vespera 3 7.

SpecSeestar S30Vespera 3
Aperture30 mm50 mm
Focal length150 mm245 mm
Native field of view2.14° × 1.21°2.5° × 1.4°
Targets framed well6 / 207 / 20
Weight–5 kg
Wide-angle cameraNot listedNot listed
Mosaic modeNot listedYes
Official price$399€2,490

Both frames on the same targets

Solid gold: Seestar S30. Dashed blue: Vespera 3.

M31 · 190′ × 60′
M31 Andromeda Galaxy: Seestar S30 larger than the frame; Vespera 3 larger than the frame.
M42 · 66′ × 60′
M42 Orion Nebula: Seestar S30 fits well; Vespera 3 fits well.
M51 · 11′ × 8′
M51 Whirlpool Galaxy: Seestar S30 small in the frame; Vespera 3 small in the frame.

Where they differ

TargetSeestar S30Vespera 3
M33 Triangulum Galaxylarger than the framefits well

Where to buy the Seestar S30

Where to buy the Vespera 3

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Test both against your own sky

Questions and answers

Which is better for large targets, the Seestar S30 or the Vespera 3?
The Vespera 3, because it has the wider field of view.
Which frames more popular targets well?
The Vespera 3 (7 of 20, against 6).

Specs from manufacturer pages, checked 2026-10-12. Fit labels follow the rule on the page.