Vaonis Vespera III
Vaonis Vespera III: sensor, field of view and carrying weight
At a glance
Good seeing6 out of 10
The Vespera III pairs a wide 2.5° x 1.4° field of view with an 8.3 MP sensor, but its 50 mm aperture gathers less light than most of the telescopes compared. The maker states 11 hours of battery life, while its 5 kg weight makes it less convenient to carry out.
Five scores, from 1 to 10
- Light graspaperture, against every scope listed here4.4
- Detailfocal length and pixel size3.9
- Field of viewhow much sky fits in one frame7
- Portabilitycarry weight, without the tripod4.7
- Easebattery, autofocus, dew heater, light pollution handling10
Mean score 6 out of 10
The sums behind these figures are set out on how scores work. With no figure from the maker, a row stays empty.
Compared with Unistellar
Unistellar Odyssey
£2,099Price at Unistellar's UK shop, 23 October 2026
| Spec | Vaonis Vespera III | Unistellar Odyssey |
|---|---|---|
| Aperture | 50 mm | 85 mm |
| Weight | 5 kg | 4 kg |
| Focal length | 245 mm | 320 mm |
Vaonis Vespera III specs compared
A 2.5° x 1.4° field of view, according to the maker, frames a broad patch of sky in one view, giving you room for objects that extend across the field. The Vespera III is a smart telescope, with a refractor and an app-controlled built-in camera sensor, rather than an electronic eyepiece instrument.
Optics and image capture
The 50 mm (2 in) aperture gathers less light than most of the telescopes compared, so the compact optical opening is the key limit to consider for your garden. Its 245 mm focal length and f/4.9 focal ratio describe a short optical system, while the 2.9 µm pixels set the sampling scale of the camera.
The Sony IMX585 image sensor records 8.3 MP, with an image resolution of 3840 x 2160 pixels. That combination gives you a defined image format for app-based viewing, with the pixel count and pixel size stated separately because they describe different parts of the imaging system.
The field's longer side is 2.5°, and its shorter side is 1.4°. That rectangular framing suits a larger patch of sky than a narrow field, while the same dimensions also set how much room an object has before reaching an image edge. According to the maker, this is wider than the field of most telescopes compared.
Carrying and observing through the night
The weight is 5 kg, according to the maker, and the portability comparison counts the telescope carried out with the tripod excluded. That makes the carrying load heavier than most of the telescopes compared, a practical point if you move your kit between the house and the garden.
The maker states a battery life of 11 hours. For a session planned around a long stretch of darkness, that quoted duration is the figure to use when considering how long the telescope can run away from a mains supply.
The built-in dew heater is relevant on damp nights, when dew can settle on exposed optical surfaces. It is one of the specified features that supports an unattended observing session, alongside the quoted battery life. The Singularity app is the named app for controlling the smart telescope.
Internal storage is 115 GB, giving you space on the instrument for captured images. The stated resolution of 3840 x 2160 pixels and 8.3 MP sensor help describe the files that storage holds, while the 2.5° x 1.4° field indicates the sky area represented in each frame.
Position among the telescopes compared
Light grasp: Towards the lower end among the instruments compared, because its 50 mm opening gathers less light than most.
Detail: Coarser than most of the telescopes compared, based on the 245 mm focal length and 2.9 µm pixels.
Field: Towards the wider end among the instruments compared, with a 2.5° long side.
Portability: Heavier to carry out than most of the telescopes compared, at 5 kg.
Ease: Runs more of the night on its own than most of the telescopes compared, with 11 hours of battery life and a dew heater.
See it at VaonisVaonis Vespera III, £2,199, Typical UK retail price, 23 October 2026
Specifications
| Optical design | Refractor |
|---|---|
| Aperture | 50 mm (2 in) |
| Focal length | 245 mm |
| Focal ratio | f/4.9 |
| Sensor | Sony IMX585, 8.3 MP |
| Pixel size | 2.9 µm |
| Image size | 3840 × 2160 px |
| Field of view | 2.5° × 1.4° |
| Limiting magnitude (maker's figure) | not stated by the maker |
| Mount | not stated by the maker |
| Electronic eyepiece | not stated by the maker |
| Filters built in | not stated by the maker |
| Autofocus | not stated by the maker |
| Battery life (maker's figure) | 11 h |
| Weight | 5 kg |
| Storage | 115 GB |
| Dew heater | Yes |
| Weather rating | not stated by the maker |
| App | Singularity app |
Source: the maker's own specification sheet. Where it says "not stated by the maker", the maker has not given that figure so far.
Versions
Typical UK retail price, 23 October 2026. Each row leads to that version at the shop.
Strengths and limits
- The Sony IMX585 image sensor provides 8.3 MP, with an image resolution of 3840 x 2160 pixels and 2.9 µm pixels.
- The 2.5° x 1.4° field of view frames a wider patch of your sky than most of the telescopes compared.
- The maker states 11 hours of battery life, and a dew heater is listed.
- Its 50 mm (2 in) aperture gathers less light than most of the telescopes compared.
- The 245 mm focal length and 2.9 µm pixels give coarser detail than most of the telescopes compared; its 5 kg weight, tripod excluded, is also heavier to carry out than most.
Who it suits, and which skies
A good match if you want a wide field of view, an 8.3 MP image sensor or a listed dew heater.
Less so if you prioritise a larger aperture, finer detail or a lower carry-out weight.
Bundles and prices for each version sit in the table above; the current line-up is on the shop's own page.
Questions about the Vaonis Vespera III
- How much does the Vespera III weigh to carry out?
- The maker states a weight of 5 kg; the comparison's carry-out figure excludes the tripod.
- What is the setup app?
- The listed app is Singularity, and the telescope has a 3840 x 2160-pixel image resolution.
- Is it suited to a damp night?
- A dew heater is listed, and the maker states 11 hours of battery life.
- How broad is its field of view?
- The maker's stated field of view is 2.5° x 1.4°, framing a wider patch of sky than most of the telescopes compared.
Photos
Last light
The Vespera III's Sony IMX585 image sensor, 8.3 MP resolution and wide field of view make it suited to framing a broad area of your sky. Its 50 mm aperture and the detail indicated by its 245 mm focal length and 2.9 µm pixels trail most of the telescopes compared. The maker states 11 hours of battery life, and the listed dew heater is a useful feature for damp nights. At 5 kg, tripod excluded, it is heavier to carry out than most of the compared instruments.
See it at Vaonis£2,199, Typical UK retail price, 23 October 2026
Field notes that mention it
Nearby in the sky: similar scopes
- Vaonis Vespera Pro II50 mm, 5 kg, 1.6° × 1.6°, from £2,599
- Vaonis Vespera II50 mm, 5 kg, 2.5° × 1.4°, from £1,398
- ZWO Seestar S50 Pro50 mm, 2.8 kg, Tele: 2.8° (Portrait); Wide: 63° (Portrait), £999
- Unistellar Odyssey85 mm, 4 kg, 0.75° × 0.56°, £2,099