Dwarf mini - Information (30 mm Refractor)

Introduction | About Vespera | Look | Sensor, Pixel Data, Field of View, Image Size (Pixels) | Visited Sky Objects | First Experiences and Photos | Photo Attempts | First Conclusions | Links || Appendix: Technical Data | Appendix: Comparison of the Vaonis Vespera, Vaonis Stellina, and the Unistellar eVscope | Appendix: First Thoughts (without Owning Vespera...) | Appendix: Look | Appendix Photos | Appendix: Project Schedule and Delivery

In progress

On this page, I provide some information about my electronic refractor telescope Dwarf mini 30 mm/150 mm (f/5). I ordered it at the end of November 2025 (pre-order) together with a tripod and received it on January 14, 2026 and the tripod on January 16, 2026.

Introduction

Photo: My Dwarf mini (Jan 2026)

The Dwarf mini seems to be the fourth smart telescope that was developped by a chinese company called DwarfLab.

Arrival: 14.1.2026, 14:27, without tripod; tripod: 16.1.2026, 10:20

Weights: parcel 1.565g, box 1.290g, telescope 846 g (840 officially)

About the Dwarf mini

In progress

What is the Dwarf mini?

...

Here are some technical data:

Technique

Optics

Mount

Weight: 5 kg
Size: 15 x 8 x 3.5 in (40 x 20 x 9 cm)
Power supply: AC power with USB power supply
Autonomy: ≈ 4 hours of use with internal battery
Image processing: Integrated and adapted to target
Alignement: Automated
Focusing: Automated
Water resistance: IP43
Accessories included: a custom designed tripod, an American or European type USB power adapter, a USB power cable
Control: Smartphone/Tablet

Objective: ED quadruplet refractor with Lanthanum glass (S-FPL52)
Aperture: 2 in (50 mm)
Focal length: 8 in (200 mm)
Focal ratio: F/4
Focus: Integrated autofocus
Field of view: 1.6° x 0.9°
Magnification: 33 x
File formats: JPEG, TIFF, FITS (16-bit RAW)

Sensor

Sensor: Sony 1/2.8" CMOS IMX462 - 2.1 M
Pixel Resolution: 1920 x 1080
Pixel Size: 2.9µm x 2.9µm

Type: Alt-azimuth
Pointing: Automated with star aiming technology
Guiding: Autonomous autoguiding included
Field derotator: Not included

Other

Filter: Light pollution (CLS), Dual Band. and Solar filter optional
Dew control: Dew sensor optional (heating integrated)

Why Did I Opt for the Dwarf mini?

...

Look

Here I present photos of the unboxing, the telescope itself, and its accessories (including the extra tripod).


The Dwarf mini has arrived!	The parcel on the scales: 1.565 g	Parcel opened

Technical data	The mini box taken out	The Dwarf mini box (useful for storing)

Technical data once again...	The package contents on the box	Box from above

Box opened ...	... and the Dwarf mini made visible	Accessories: Sun filter and USB-C cable

Dwarf mini taken out of the box...	...and plastoc cover removed	Weight of my Dwarf mini: 846 g

Dwarf mini turned on (green LEDs glow)	Telescope arm turned by hand	Dito

Ditto	Dtito	Dwarf Mini in hands

Tripod, Dwarf mini on the Tripod


Das Stativ für das Dwarf mini ist angekommen!	Innenkarton herausgenommen	Stativ in Hülle herausgenommen

Stativ aus Hülle genommen	Stativ aus Plastikhülle genommen	Das Stativ (Hebel falsch herum angebaut)

Dito	Das wäre die Reiseausrüstung ohne iPad und Ladegerät!	Dwarf mini auf dem Stativ

Dito, Beine ausgezogen	Dito, Hebel nun korrekt miontiert	Dito, Beine wieder eingefahren

Sensor, Pixel Data, Field of View, Image Size (Pixels)

In progress

The Dwarf mini uses the sensor Sony IMX662 (CMOS), with a used pixel size of about 2 megapixels, or 1920 x 1080 pixels (H/V). The pixel size is 2.9µm (quadratic pixels).

The following table shows the Vespera, eVscope, and eVscope 2 in comparison with my current telescope tubes at a selection of cameras that I own(ed):

Telescope	Focal Length	Aperture	f	FOV in Degrees	FOV in Minutes	IS*	Sensor
eVscope*	450	114	4	0.61° x 0.46°	36.7' x 27.6'	1.72	Sony IMX224
eVscope 2*	450	114	4	0.78° x 0.57°	47' x 34'	1.33	Sony IMX347
Vespera*	200	50	5	1.6° x 0.9°	96' x 54' (ca.)	2.99	Sony IMX462
Vespera Pro	250	50	5	1.6° x 1.6°	96' x 96' (ca.)	1.65	Sony IMX676
Dwarf mini	150	30	5			4	IMX 662 (successor of IMX462)

*) No longer in my possession
*) IS = image scale: describes the relative sizes of objects at 1:1 pixels (the larger the number, the smaller the objects)

All in all, the Vespera Pro offers the widest FOV of all the telescopes.

Visited Sky Objects

Here I list the deep sky objects that I observed and photographed initially with the Dwarf mini:

Jan 15, 2026: M 33, M 42/43
Jan 16, 2026: IC 1396, M 31/32/110
Jan 18, 2026: NGC 7000, NGC 1499

First Experiences and Photos

On page Dwarf mini - First Experiences, I will describe my very first experiences with the Dwarf mini. For space reasons, I created a new page for this. This page also presents my photos of the objects that I list in "Visited Sky Objects" above (my very first observations with the Dwarf mini).

First Conclusions

...

Links

Dwarf Mini Smart Telescope – Review & Tutorial (Wido's Astroforum): astroforumspace.com/dwarf-mini-smart-telescope-review-tutorial/ - YouTube-Video dazu: www.youtube.com/watch?v=4SoaQqLWR0s
Dwarf mini documentation (DwarfLab): help.dwarflab.com/en/docs/dwarf-mini-smart-telescope
- DWARF mini User Manual: help.dwarflab.com/en/docs/DWARF-mini-Smart-Telescope-User-Manual
- Get to Know the Files Stored in DWARF mini: help.dwarflab.com/en/docs/help-doc
- DWARF mini Lighting Effects: help.dwarflab.com/en/docs/help-doc-mini-lighting-effects
- How to View DWARF mini Files Wirelessly Using a Computer: help.dwarflab.com/en/docs/help-doc-1
- FAQ & Troubleshooting Guide for DWARF Users: help.dwarflab.com/en/docs/help-doc-2
See also my page offering Astronomy Links.

Appendix: Technical Data for the Vaonis Vespera

Hardware

Magnification: 33 x optical
Maximum magnitude: up to 13 mag in good sky
Aperture: 50 mm
Focal length: 200 mm
Focal ratio: 1:4
Motorized Alt-AZ mount
Weight: 5 kg
Size: 15 x 8 x 3.5 in (40 x 20 x 9 cm)

Bag

See photo further down

Electronics

Sensor model: Sony IMX462 (CMOS) - for details see further below
Battery life: up to 4 hours (internal battery)
Wireless connectivity: Wifi for smartphone or computer control and GPS access (no GPS inside)

Smarts

Autonomous field detection
Fully automated star alignment procedure
Automated pointing
Automated celestial tracking
Intelligent image processing

Sensor Data

Sony Starvis IMX462 color CMOS sensor - 2.1 MPixels
Sensor size: 1/2.8" diagonal* (4.8 mm x 3.6 mm), 1920 x 1080 pixels
Pixel size: 2.9µm x 2.9µm
Read noise: < 0.5e-

Appendix: Comparison of the Vaonis Vespera, Vaonis Stellina, and the Unistellar eVscope

Source: vaonis.com/stellina-vs-vespera#Diff

	Vespera	Stellina	eVscope	eVscope 2
Weight	5 kg (11 lbs)	11.2 kg (24.7 lbs)	9 kg (19.8 lbs) including tripod	9 kg (19.8 lbs) including tripod
Height	40 cm (15 in)	49 cm (19 in)	65 cm (25.5 in)	65 cm (25.5 in)
Width	20 cm (8 in)	39 cm (15 in)	23 cm (9 in)	23 cm (9 in)
Depth	9 cm (3.5 in)	13 cm (4.7 in)	n.a.	n.a.
Telescope type	Refractor	Refractor	Reflector (Newtonian)	Reflector (Newtonian)
Lens/Mirror	Apochromatic Quadruplet	Apochromatic Doublet	mirror	mirror
Lens/Mirror special features	Extra low dispersion S-FPL52 equivalent (ULD) with lanthanum glass	Very low dispersion S-FPL51 equivalent (ED) with lanthanum glass	BK7 glass mirror	BK7 glass mirror
Aperture	50 mm	80 mm	112 or 114 mm	112 or 114 mm
Focal length	200 mm	400 mm	450 mm	450 mm
Focal ratio	F/4	F/5	F/4	F/4
Field of view	1.6° x 0.9°	1° x 0.7°	0.61° x 0.46° (36.7' x 27.6')	0.78° x 0.57° (47' x 37')
Mount	Alt-azimuth	Alt-azimuth	Alt-azimuth	Alt-azimuth
Field derotator	no, done in software	yes	no, done in software	no, done in software
Image sensor	Sony IMX462	Sony IMX178	Sony IMX224	Sony IMX347
Resolution	1920 x 1080 (2MP)	3072 x 2080 (6,4MP)	1280 x 960 (1,2 MP) / 2560 x 1920 (2,4 MP) scaled (EV mode)	2048 x 1536 (3,2 MP), 3200 x 2400 (7,7 MP) scaled (EV mode)
Sensor size	1/2.8"	1/1.8"	1/3"	1/1.8"
File formats	JPEG, TIFF, FITS (TIFF/FITS in 16 bits)	JPEG, TIFF, FITS (TIFF/FITS in 16 bits)	PNG	PNG
USB port (pictures download)	no (with Wi-Fi)	yes	no (with Wi-Fi)	no (with Wi-Fi)
Autofocus	yes	yes	no	no
Light pollution filter	Optional	yes	no, done in software	no, done in software
Dew control	Yes as soon as the sensor is installed	yes	no	no
Temperature/humidity sensor	Optional	yes	no	no
Battery type	Integrated	External (powerbank)	Integrated	Integrated
Battery life	up to 8 h	up to 5 h	up to 10 h	up to 10 h
Water resistance	IP43	IP53	n.a.	n.a.
Multi user mode	up to 5 users*	up to 10 users	yes (number unknown)	yes (up to 10 users)
Number of objects in data base	200 (October 2020)	200 (October 2020)	> 5000, > 120 with descriptions	> 5000, > 120 with descriptions
Object access via coordinates	yes	yes	yes	yes
2021/2022 Developments
Solar pointing	yes (with optional filter)	yes (with optional filter)	yes (with optional filter)	yes (with optional filter)
Connected battery	possible	yes	possible	possible
Connection to Wi-Fi hotspots	no	yes	no	no
Scheduling of observations	up to 3 objects*	unlimited	no	no
Expert mode (camera control)	yes	yes	manual pre-processing (brightness, background) already available in 2020	manual pre-processing (brightness, background)
HDR Image processing	yes	yes	no	no
Pictures stocking in the app	up to 200 MB	up to 200 MB	no, on the smartphone depending on its memory size	no, on the smartphone depending on its memory size
Mosaic mode	3.2° x 1.8° (4 x sensor field) at maximum	2.0° x 1.4° (4 x sensor field) at maximum	no	no

*) Vaonis decided to open certain software features to Vespera as well; I will add the respective information as soon as I got it.