Vaonis Vespera II Smart Telescope

50mm f/5 Apochromatic Quadruplet Optics

The Vespera II's optical system is built around an apochromatic quadruplet design with a 50mm aperture and a 250mm focal length. This f/5 apochromatic design is corrected for color, and a refined field corrector is integrated to keep stars sharp across the frame.

This combination of a fast focal ratio and corrected optics is critical for its live-stacking performance. The f/5 system gathers light quickly, allowing the Vespera II to build up a detailed image in minutes. An integrated UV-IR filter is built in, as the manual states.

8.3 MP Sony IMX585 Sensor and 2.39 arcsec/pixel Resolution

At the heart of the Vespera II is a 1/1.2" format Sony IMX585 color sensor, which provides a resolution of 3840 x 2160 pixels (8.3 MP). The sensor's 11.2 x 6.3 mm dimensions, paired with the 250mm focal length, produce a generous native field of view of 2.5° x 1.4°, wide enough to frame many popular celestial targets in their entirety.

The sensor's 2.9 µm pixels result in a detail resolution of 2.39 arcseconds per pixel. This image scale is well-suited for the Vespera II's focal length, providing a balance between a wide field of view and the ability to resolve details in brighter targets like the Orion Nebula (M42) or the cores of globular clusters.

24 MP CovalENS Mosaic Mode: Expanding the Field to 4.33°

For celestial objects that exceed the Vespera II's native field of view, Vaonis's CovalENS technology automates the creation of large-scale mosaics. When activated in the Singularity app, the system automatically captures adjacent, overlapping image fields and stitches them together in real time. This process expands the final composition to a maximum field of view of 4.33° x 2.43°.

This mode increases the final image definition to 24 MP, creating a highly detailed, expansive vista. CovalENS does this without manual intervention, and its dithering means calibration frames are not required.

• The Andromeda Galaxy (M31): Frame the entire galaxy, including its satellite companions M32 and M110, in a single, detailed composition.
• The North America Nebula (NGC 7000): Capture this large emission nebula in one composition.

Fully Automated Operation: Pointing, Autofocus, and Live Stacking

Vespera II is designed to eliminate the technical complexities of astrophotography. After a simple one-button startup, the station uses star field detection to initialize its location and orientation within minutes. From there, all operations are handled autonomously. You select a target in the app, and Vespera II automatically slews to it, centers it, and begins tracking.

The integrated autofocus system ensures stars remain sharp throughout your observation, automatically compensating for temperature changes that can affect focus. As the telescope tracks, it employs live stacking technology, continuously capturing frames, automatically rejecting bad frames, and combining the good ones to build a progressively cleaner and more detailed image on your device's screen.

The Singularity App: Plan My Night with a 4,000+ Object Catalog

The entire Vespera II experience is controlled through the Vaonis Singularity app, available for iOS and Android devices. The app connects to the telescope's local Wi-Fi network (supporting both 2.4 GHz and 5 GHz bands) and provides an intuitive interface for exploring the night sky. You can browse a catalog of more than 4,000 targets or enter custom coordinates for a specific target.

Singularity includes advanced planning features to maximize your time under the stars. The "Plan My Night" function lets you schedule an entire imaging sequence for the evening. You can build a list of targets, and Vespera II will automatically move from one to the next. The unit shuts off at the end of the planned night, so you wake to new images.

25 GB Storage with 16-bit FITS & TIFF Exports

Vespera II saves your observations to its 25 GB of internal storage, providing ample space for multiple nights of imaging. The system offers flexibility in how you save and export your data, catering to both casual sharing and advanced post-processing.

• JPEG (8-bit): For immediate sharing on social media or with friends, the app generates a processed JPEG file that is ready to view.
• TIFF (16-bit): For those who want to perform their own edits, the Vespera II can save a pre-stacked 16-bit TIFF file. This format retains a much wider dynamic range than JPEG, offering more latitude for your own adjustments.
• FITS (16-bit): For advanced users, the station can export the raw, uncalibrated individual sub-exposures as 16-bit FITS files. This provides full control over the stacking and processing workflow using dedicated astrophotography software.

4-Hour Internal Battery with USB-C Charging

The Vespera II is powered by a built-in 3,250 mAh (23 Wh) battery, which provides about 4 hours of continuous operation on a full charge. This self-contained power system enhances its portability, allowing you to set up at remote dark-sky sites without needing an external power source. When the battery is low, a red light on the control button will flash to alert you.

For longer imaging sessions, the telescope can be charged and powered via its USB-C port, which supports Power Delivery (PD). This allows you to connect a compatible USB-C AC adapter or a portable power bank to run the station all night. Note that an AC adapter and power bank are not included with the Vespera II.

Optional Dew Control for 0 °C to 40 °C Operation

Vespera II is designed to operate in a temperature range from 0 °C to 40 °C. To combat dew formation on the front lens during humid nights, Vaonis offers an optional hygrometer sensor (model AC024). When installed, this sensor measures ambient temperature and humidity so the telescope can manage dew prevention automatically.

The sensor is user-installable inside the optical arm. Once connected, it is automatically detected by the Singularity app, which will display the current temperature and humidity. While the Vespera II resists light rain, it should never be immersed in water and should be allowed to dry completely before storage to prevent mold.

Expanding Capabilities with Optional Solar, CLS, and Dual-Band Filters

Optional Vaonis filters fit at the front end of the optical arm, behind its cover, as the manual describes. Vaonis offers several optional filters that are automatically recognized by the Singularity app when installed.

• Solar Filter (AC021): Enables safe observation and imaging of the Sun. The app enters a specific solar mode when this filter is detected, guiding you through proper alignment and safety procedures. Never point the Vespera II at the Sun without this Vaonis filter correctly installed.
• CLS Filter (AC023): A Light Pollution filter (City Light Suppression) designed to improve contrast on deep-sky objects from urban or suburban locations by blocking common wavelengths from streetlights.
• Dual-Band Filter (AC022): For emission nebulae, this filter isolates the Hydrogen-alpha and Oxygen-III wavelengths to increase contrast.

A 5 kg Go-Anywhere Station and Carbon Tripod Kit

Weighing just 5 kg and with compact dimensions of 48 x 20 x 9 cm, the Vespera II is built for portability. It can be easily transported in a hiking backpack or carry-on luggage, making it an excellent companion for travel to dark-sky sites. The product comes in two configurations:

The "Telescope Only" version requires a sturdy tripod with a standard 3/8" mounting screw capable of supporting the 5 kg instrument. The "With Carbon Fiber Tripod" kit includes the Vespera II along with the Vaonis Carbon Fiber Tripod. This lightweight (0.9 kg) yet robust tripod extends from a minimum height of 10.5 cm to a maximum of 91 cm and includes a padded carry bag, offering a complete, grab-and-go imaging solution.

Your First Night with the Vespera II

Getting started with the Vespera II is straightforward. Before your first use, fully charge the internal battery. Once outdoors, set up your tripod on stable, level ground. Attach the Vespera II using its 3/8" threaded base and ensure the tripod is level.

To power on, press and hold the touch-sensitive button for about three seconds: it flashes white, then turns steady; release it. It flashes blue while starting up and turns steady blue when ready. The telescope will create its own Wi-Fi network. On your phone or tablet, connect to the "Vespera 2-XXXXX" network and open the Singularity app. The app will guide you through the final steps: initialization, choosing a target, and starting your observation. To shut down, either use the command in the app or press and hold the power button again for three seconds until the light goes out.