The range
Three 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/4,3 · Sony IMX678 STARVIS 2
35 mm of aperture, a STARVIS 2 sensor, a built-in dual-band filter, an equatorial mode. It is the best result per euro of the devices compared here.
1h on l'Origin = 3h 49m here
- Aperture
- 35 mm
- Weight
- 1,3 kg
- Indicative price
- ≈ 529 €
Used for this site
f/5 · Sony IMX662
The smallest smart telescope on the market. 30 mm in a body of 840 g, filters included.
1h on l'Origin = 5h 10m here
- Aperture
- 30 mm
- Weight
- 0,84 kg
- Indicative price
- ≈ 429 €
f/3,8 · OmniVision OV50Q40
90 mm in a 5.5 kg body, with a sensor that turns on itself to cancel out the rotation of the sky. DwarfLab leaves the small format behind and aims at the portable observatory.
1h on l'Origin = 2h 59m here
- Aperture
- 90 mm
- Weight
- 5,5 kg
- Indicative price
- ≈ 1 669 € (édition SHO, la seule disponible · édition standard ≈ 1 499 €, épuisée au relevé du 14/09/2026)
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.