DwarfLab Dwarf 3

The DwarfLab Dwarf 3 is a dual-lens smart telescope, a six-element 35 mm apochromatic refractor paired with an 8.3 MP Sony IMX678 sensor, listed between $529 and $599 (529 to 599 € in Europe) depending on the retailer. It is the best field-versus-resolution compromise in its price bracket, but it ships without a tripod: the real budget always exceeds the sticker price.

The verdict in three lines

The Dwarf 3 targets the astrophotographer who wants wide field and a file defined enough to be cropped or printed large. With 3,840 × 2,160 pixels spread over 2.93° × 1.65° (about a 3.4° diagonal), it frames the large nebulae in a single pointing where its rivals force a mosaic, while keeping enough headroom to crop afterwards. The three internal switchable filters — VIS 430-650 nm, Astro 430-690 nm and dual-band Hα 656.3 nm / OIII 500.7 nm — cover dark skies as well as suburban ones with nothing to screw on, which is still rare at this price. The whole thing weighs 1.3 kg, carries 128 GB and asks for no subscription.

What it does not do: it does not replace a long focal length for planetary work, and it does not stand up by itself. The tripod is not supplied, and EQ mode — which unlocks exposures up to 60 s — additionally demands an equatorial tripod, with a polar alignment that is not very intuitive. The claimed 5.5 h of battery drops to roughly 4 h in testing. If you want a device ready to observe the moment you open the box, look at the Seestar S30, delivered with its carbon tripod for $399 (399 € in Europe). If portability matters more than resolution, the Dwarf Mini comes down to 840 g.

Buy the Dwarf 3 if…

• You photograph extended targets. A 2.93° × 1.65° field swallows the big nebular complexes in a single frame, where the Seestar S50 and its 0.73° × 1.29° force you to assemble several tiles.
• You want to be able to crop and print. The 8.3 MP of the IMX678 are worth nearly four times the 2.1 MP of the IMX662 sensors in the Seestar S30 and the Dwarf Mini.
• You observe from a polluted sky. The Hα 656.3 nm + OIII 500.7 nm dual-band is built in and switchable from the app, with no extra cost and no mechanical handling.
• You leave the device outside for hours. The IP54 rating makes it the only model in this comparison protected against dust and water splashes, which is decisive for multi-night stacking.
• You want daytime use. The telephoto channel, equivalent to 737 mm in full frame, the 6.7 mm wide angle (45 mm equivalent) and the IP54 rating make it a genuine wildlife tool, the only case in this selection.

Skip it if…

• You do not want to buy anything else. The tripod is not included, and a second, equatorial one is needed for EQ mode: the real gap against the Seestar S30 widens more than the label suggests.
• You run full nights back to back with no power supply. The 10,000 mAh battery is rated for 5.5 h but lasts about 4 h in testing: without an external battery on USB-C, a whole night is out of reach.
• You are mainly after planetary work. With 35 mm of aperture and 150 mm of focal length at f/4.3, resolution on Jupiter or Saturn is structurally limited.
• You control it from a distance. The internal Wi-Fi range is limited: you have to stay close to the instrument.

How it actually performs in the field

Deep sky

This is the domain that justifies its price. The combination of f/4.3, 2 µm photosites, 83 % quantum efficiency and 0.6 e⁻ read noise gives a clean signal on short exposures, and the 2×2 mosaic quadruples the area covered for objects that spill beyond 2.93° × 1.65°. Multi-night stacking is the real lever: adding several evenings on the same target brings out the faint extensions with no extra hardware. The Hα/OIII dual-band targets emission nebulae, while the Astro 430-690 nm filter lets more signal through on galaxies. EQ mode and its 60 s exposures improve the signal-to-noise ratio further, provided you have invested in the equatorial tripod.

Moon and Sun

A magnetic solar filter is supplied: white-light solar observing is immediate and safe. The Moon sits very comfortably inside a 3.4° diagonal field: you get a full disc with context rather than a close-up, and the 8.3 MP allow a crop on the large maria. On both these targets, the appeal of the Dwarf 3 lies in how simple it is to deploy, not in the level of detail.

Planets

This is the structural weakness of the format. An aperture of 35 mm and a focal length of 150 mm do not provide the sampling needed to resolve Jupiter’s belts. The Dwarf 3 can show the planets and track them, not resolve them. The Seestar S50, with 50 mm and 250 mm of focal length, takes a measurable advantage, without rivalling a dedicated planetary instrument.

Daytime and wildlife use

This is the angle that genuinely sets it apart from the rest of the market. IP54 allows an outing in drizzle, and the telephoto channel equivalent to 737 mm on an 8.3 MP sensor makes it a tool for wildlife observation at a distance, with the 1,920 × 1,080 wide angle serving as a context finder. The device therefore does not sleep between two clear nights.

Dwarf 3 vs its direct rivals

Dwarf 3 vs Seestar S30

The Seestar S30 costs $399, carbon tripod included, against $529 to $599 for a bare Dwarf 3. In exchange, you move from 30 to 35 mm of aperture, from 2.1 to 8.3 MP, and from a 1.20° × 2.13° field to 2.93° × 1.65°. The S30 remains the best-equipped entry point out of the box; the Dwarf 3 is the device whose files you will keep. If you plan to process and print your images, the resolution gap justifies the premium; if you want to start tonight, take the S30.

Dwarf 3 vs Seestar S50

The Seestar S50, at $499 (499 € in Europe), sets 50 mm of aperture and 250 mm of focal length against the 35 mm and 150 mm of the Dwarf 3: more light collected and more magnification, but a 0.73° × 1.29° field far too tight for the large nebulae. The Dwarf 3 hits back with 8.3 MP against 2.1 MP, three internal filters and IP54. The S50 to close in on small objects, the Dwarf 3 for everything else.

Dwarf 3 vs Dwarf Mini

The Dwarf Mini plays the weight card: 840 g against 1.3 kg, for 30 mm of aperture, 2.1 MP, 64 GB and about 2 h of real battery life. It does, however, offer an EQ mode with 90 s exposures and no paid accessory, where the Dwarf 3 tops out at 60 s and demands an equatorial tripod. Neither one ships with a tripod, but only the Dwarf 3 is IP54 certified. The Mini is a travel device, the Dwarf 3 an image-production device.

Alternatives by budget

• Cheaper: the Seestar S30 at $399, carbon tripod included, to start with no accessories to plan for.
• Same budget: the Seestar S50 at $499, wider aperture and longer focal length, if your targets are small and bright.
• One step up: the Vaonis Vespera II and Vespera III, more accomplished on build quality and software ecosystem.
• A different class: the Vaonis Hestia at $229 (229 € in Europe), an unmotorised smartphone module, or the Unistellar Odyssey, geared to assisted observing rather than photography.

Frequently asked questions

Does the Dwarf 3 come with a tripod?

No. The Dwarf 3 is sold without a tripod, unlike the Seestar S30, which ships with a carbon one. Budget for that purchase, plus an equatorial tripod for EQ mode.

Does the Dwarf 3 require a subscription?

No, no subscription is required: switchable filters, 2×2 mosaic and multi-night stacking are all available with no recurring payment.

What is the real battery life of the Dwarf 3?

The 10,000 mAh battery is rated for 5.5 h, but tests record about 4 h of effective use. An external USB-C battery is still advisable for a full night.

Can you leave the Dwarf 3 outside in damp weather?

It is IP54 certified, the only model in this comparison to be so: it resists dust and water splashes. It is one of the rare smart telescopes you can leave running for an entire session.

Dwarf 3 vs Seestar S50: which one should you buy?

The S50 offers 50 mm of aperture and 250 mm of focal length for a tight 0.73° × 1.29° field, suited to compact objects. The Dwarf 3 offers 2.93° × 1.65° and 8.3 MP, more versatile on the large nebulae.