The range
Two devices in the comparison
Rapport d'ouverture : the focal length divided by the diameter, written f/, and the smaller that number, the faster the image forms. Monture azimutale : it moves in altitude and in rotation, but the field turns during the night. Monture équatoriale : one axis set on that of the Earth, so that the field no longer turns.
f/5,3 · Sony IMX585
The S30 keeps its body, its weight and its 30 mm, and changes what is inside: a sensor four times larger, four lenses instead of three, and a rebuilt wide angle.
1h on l'Origin = 5h 48m here
- Aperture
- 30 mm
- Weight
- 1,65 kg
- Indicative price
- ≈ 749 €
f/5,2 · OmniVision OS08B10
The heaviest overhaul in the Seestar range. The dual-band and the equatorial mode were already there; what changes is the sensor, the optics, the battery and the price.
1h on l'Origin = 5h 35m here
- Aperture
- 50 mm
- Weight
- 2,8 kg (bloc principal)
- Indicative price
- ≈ 999 € (≈ 899 € en offre de lancement jusqu'au 15/09/2026 à 9 h, heure d'été d'Europe centrale)
This equivalence says nothing about resolution, about the field or about optical quality: f/2,2 on 152 mm and f/5,3 on 30 mm do not photograph the same objects. Worked out from the published focal ratios alone, with sensor, sky and target held identical.