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Comparing two devices

Atlas or Vespera Pro 2: which to choose in 2026

Let it be said before anything is compared: the evidence here exists on one side only. 5 shots, 4 objects and 62h 37m with the Vaonis Vespera Pro 2. Nothing with the Vaonis Atlas, which has never been in my hands. Everything that follows about the Vaonis Atlas comes from published sources, listed at the foot of the page.

Le Cœur et l'Âme · Photograph by the author · 3h 47m of exposure, DwarfLab DWARF 3

not tested Vaonis Atlas

0 · no first-hand data

0 towards 170h · hours I have logged with this device, this is not a rating

recorded first hand Vaonis Vespera Pro 2

62h 37m

0 towards 170h · hours I have logged with this device, this is not a rating

Line by line

What the two datasheets do not say the same way

Every value comes from the entry for that device, where it carries its source. The difference column is worked out here, from those two values. It gives the size of the gap, never its direction: the two columns before it already say that. It stays empty on lines with no number. It stays empty too wherever a percentage would mean nothing.

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.

Specifications of the Vaonis Atlas and the Vaonis Vespera Pro 2 compared
Specification Vaonis Atlas Vaonis Vespera Pro 2 Difference
Aperture 80 mm 50 mm 60%
Focal length 360 mm 245 mm 47%
Focal ratio f/4.5 f/4.9
Sensor Sony IMX585, format 1/1.2 inch, 11.2 × 6.3 mm, 2.9 µm photosites Sony IMX676, format 1/1.6 inch, 7.0 × 7.0 mm, 2 µm photosites
Resolution 3,840 × 2,160 px (8.3 Mpx) 3,536 × 3,536 px (12.5 Mpx)
Built-in filters None · 1.25 inch filter drawer, automatically recognised Vaonis filters announced for late 2026 None
Mount Motorised altazimuth · equatorial table announced for the second half of 2027 Motorised altazimuth
Weight 6.5 kg (Single, mount 3.5 kg and imaging module 3 kg, sum of the two published masses · Twin 9.5 kg) 5 kg 30%
Software Gaia (iOS, Android) Singularity (iOS, Android)
Indicative price ≈ €4,990 (≈ €3,990 at the launch price until 15 November 2026 · Twin ≈ €6,990, ≈ €5,490 at the launch price) ≈ €2,990 67%

Prices recorded in 2026, excluding promotions and accessories. The Vaonis Atlas and Vaonis Vespera Pro 2 entries each carry their own sources, one per specification.

What the data settles

Four differences, and nothing more

  1. 01

    The price. The cheaper is the Vaonis Vespera Pro 2, at ≈ €2,990. The Vaonis Atlas asks ≈ €4,990, which is 67% more. These are market prices, recorded in 2026 from the sources cited at the foot of the page. They are not my selling prices.

  2. 02

    The diameter. The Vaonis Vespera Pro 2 opens at 50 mm. The Vaonis Atlas opens at 80 mm, which is 60% more. Diameter commands resolution, the finest detail that can come out of the exposure, whatever its length.

  3. 03

    The time it takes. Vaonis Atlas is the faster of the two, f/4,5 against f/4,9. L'Atlas makes in 1h an image that takes 1h 11m au Vespera Pro 2.

  4. 04

    The weight. The Vaonis Vespera Pro 2 weighs 5 kg. The Vaonis Atlas weighs 6,5 kg, which is 30% more. Weight says nothing about image quality: it says what you can carry.

These lines read published specifications and hours actually logged. They do not rank the two devices and do not rate their quality. An empty track is a device that was not tested, not a bad device. The exposure equivalence compares nothing but the published focal ratios, with sensor, sky and target held identical. It says nothing about resolution, about the field, or about optical quality.

The two devices

Their strong points, and their weak points

Vaonis · ≈ €4,990

Vaonis Atlas

One mount, and 80 mm imaging modules that fix onto it without tools: one to start with, two on the same target to double the light. Alongside the all-in-one Vesperas, Vaonis offers an instrument you can upgrade.

Strong points

  • 80 mm of aperture against 50 on the Vesperas: 2.56 times more area to gather light, by calculation on the two published diameters.
  • Modular: the imaging module fixes onto the mount through the Sky Dock interface, without tools and in under five seconds according to Vaonis. A second 80 mm module can be added later, and a planetary module is announced.
  • In Twin, two modules aim at the same target and the app stacks their images: Vaonis quotes twice the light and a signal-to-noise ratio about 41% higher. The field stays that of a single module.
  • Sky Guard, a 185° fisheye camera housed in the mount, films the whole sky live. You touch an object in that image, the Atlas points at it, and it finds the horizon, the Sun and the Moon on its own to initialise.
  • Four lenses in three groups, with no mirror and no central obstruction. According to the optical calculations Vaonis publishes, the blur due to the lenses stays smaller than the unavoidable blur of diffraction (2.9 µm radius), from the centre to the edge of the sensor.
  • Die-cast aluminium structure, rated IP64, usable from -20 to +40°C. Vaonis quotes the Vesperas in ABS, rated IP43.
  • A ten year warranty on the mount and five years per module, against five years on the Vesperas. Aluminium tripod and carrying bag supplied with both configurations.

Weak points

  • About €4,990 in Single, and €3,990 at the launch price valid until 15/11/2026: the most expensive in the panel after the Origin, and €2,000 more than the Vespera Pro 2.
  • 6.5 kg in Single and 9.5 kg in Twin, tripod not included: the heaviest of the Vaonis devices compared here, against 5 kg for the Vesperas.
  • The first deliveries are planned for March 2027. All the published sky images come from Vaonis, and no independent review had appeared when recorded on 21/10/2026.
  • No built-in filter, only a drawer in the 1.25 inch format. The automatically recognised Vaonis filters and the solar filter are only announced for late 2026.
  • No equatorial mode before the equatorial table, announced for the second half of 2027 with no published price. Vespera accessories do not fit: Vaonis writes so in its FAQ.
  • Six hours of battery, against eleven on the Vespera 3 and Pro 2. Storage goes onto a microSD card, and no internal capacity is published.
  • A native field of 1.78° by 1.00°, narrower in both directions than that of the Vespera 3, 2.5° by 1.4°. The mosaic goes up to 32 Mpx, against 50 on the Vespera Pro 2.

Vaonis · ≈ €2,990

Vaonis Vespera Pro 2

Same optics as the Vespera 3, square 12.5 Mpx sensor with small photosites. Mosaics up to 50 Mpx: the highest final resolution of the devices compared here.

Strong points

  • 12.5 Mpx on a square sensor: the highest resolution of the devices compared here.
  • Detail resolution quoted at 1.60 arcseconds per pixel, against 2.39 on the Vespera 3.
  • 256 GB of raw storage, of which 225 are available, against 128 GB raw on the Vespera 3.
  • Five year warranty.
  • Optical baffling and a Petzval inspired design, both new in this generation.
  • Carbon tripod, rigid carrying case and optical cap for dark frames, listed by the manufacturer on the accessories supplied line.
  • Eleven hours of battery and a dew heater fitted as standard.

Weak points

  • About €2,990 for 50 mm of aperture: the most expensive in the panel after the Origin and the Atlas.
  • The native field is the narrowest in the Vespera range: 1.6° by 1.6°, against 2.5 by 1.4 on the Vespera 3.
  • Small 2 µm photosites: Vaonis itself quotes the Vespera 3 as the faster of the two.
  • €500 more than the Vespera 3 for the same optics, the same weight and the same battery life.
  • The sensor is that of the previous generation: same IMX676, same resolution, same field, same mosaic.
  • No filter in the box: the manufacturer itself writes “none” on the built-in filter line.
  • Alt-azimuth mount only: no equatorial mode.

The images, from each side

What each one has really produced here

No manufacturer image, no stock image. Each thumbnail keeps the aspect ratio of its sensor, and carries the exposure time read off the caption the device burns in.

Vaonis Atlas

None of my images was made with this device. Nothing is borrowed from a stock library or a press release to fill the space. Its entry rests on the published sources, listed at the foot of this page. Its scale stays at zero.

Vaonis Vespera Pro 2

Getting hold of one

These two devices, you can order them here

There is no basket and no online payment. You say which one interests you. You can also describe what you want to photograph, and from what sky. The answer comes in writing: a price, a lead time, and what the device can and cannot do. If neither of the two suits, it will say so, and it will say which one suits better.

The prices shown on this page are market prices recorded in 2026 from the sources below. They are not selling prices, and they do not constitute an offer. Your price, your lead time and availability appear in the written reply.

Sources

Where these figures come from

No value on this page is estimated. The differences are worked out from the values above. The focal ratio, for its part, is recalculated from the published aperture and focal length. A specification wrong or out of date? Report it.

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