ZWO Seestar S50 Pro - Pre-Order Now!
Pro Performance. Built to Explore.
Seestar S50 Pro Smart Telescope
50mm Aperture. The Universe, Revealed.
All-in-One - Five Major Upgrades
- Dual 4K imaging: an 8.3MP telephoto and an 8.3MP wide-angle camera, covering 2.8° and 63° fields of view.
- 50mm 4-element APO optics with ED glass, near three times the light-gathering area of a 30mm aperture.
- Equatorial mode with a near-zero-backlash drive for stable tracking and longer exposures.
- 10,000mAh battery and 128GB storage — the longest single-charge runtime of any Seestar.
- Open expansion via ASCOM Alpaca, connecting to N.I.N.A. and other third-party software.
Just 3 Steps to Stunning Cosmic Images
50mm Large Aperture
Sharper Detail. Greater Light-Gathering Power.
With nearly three times the light-gathering area of a 30mm aperture, the 50mm aperture delivers faster light collection and greater optical resolving power. Paired with a 4K 1/1.2-inch large-format sensor, it reveals rich detail — from faint structures in deep-sky objects to the intricate textures of the Sun and Moon.
4K Dual-Lens
See Deeper, Capture Wider
Telephoto and wide-angle cameras work together, both supporting 4K UHD resolution. The telephoto camera features a 1/1.2" large sensor for clearer deep-sky detail, while the wide-angle camera records a broader starfield, keeping the whole scene in frame.
Four Imaging Modes
Built for Astrophotography
Stargazing, Solar System imaging, Milky Way and star trails, and scenery. Four modes cover the universe and the world around you, bringing every discovery into clear view.
Deep-Sky Detail, Revealed
The 50mm aperture and large-format sensor pull faint structure out of nebulae and galaxies, holding fine detail where smaller apertures give up.
DSO Mosaic Stitching, Stunning 8K Images
Telephoto mosaic capture stitches a wider frame while preserving telephoto detail, expanding the field of view and outputting up to 8K.
For deep-sky targets, lunar surfaces and other detail-rich scenes, it captures both finer detail and a broader view.
One-tap Milky Way and Star Trails
Starry Sky Mode supports multiple Milky Way stitching options, producing one-tap Milky Way arches as 8K masterpieces.
Freeze the Ground, Two Worlds in Perfect Focus
Lock the landscape. Let the sky move.
Seestar intelligently detects and locks the foreground, processing it separately from the sky. Stars stay sharp during tracking while the landscape stays clear and natural — all with a single tap.
Intelligent Constellation Recognition
Recognise constellation lines and labels with one tap, then GOTO the target instantly.
Even first-time users can find their own constellation without knowing the sky.
Star Trail Masterpieces, Effortless
Long-exposure star trail captures are turned into dynamic videos automatically, showing the night sky moving over time.
Vast Celestial Targets. Stargazing Simplified.
Select a target in the app and tap GOTO. Seestar automatically locates, tracks and captures it, delivering cosmic shots in minutes.
One-Tap Post-Processing, Effortless Imaging
Get a polished result with one tap, or take control with advanced tools including star reduction, star removal, cropping, brightness, contrast, noise reduction and saturation.
Refine every detail and bring your imagined shot to life.
Sun. Moon. Action.
With the supplied magnetic solar filter fitted, Seestar captures sunspots, lunar surface detail and rare events such as solar and lunar eclipses.
It also works as a super-telephoto camera in daylight — birdwatching, distant landscapes, rocket launches.
Plan Mode
Plan it. Sleep on it.
Generate a shooting plan with one tap and leave it to run all night. Multi-target continuous shooting switches targets automatically to capture more objects in a single session.
Equatorial Mode
Offsets the effect of the Earth’s rotation when tracking, enabling stable tracking and longer exposures so objects stay still in the frame.
A precision drive system with near-zero backlash delivers faster, smoother tracking and finer adjustment.
New Upgraded Tripod
Stability, Levelled Up
More angle options for more shooting terrain, and balanced three-point load distribution for a steadier setup.
4-Element Apochromatic Lens
Engineered to minimise chromatic aberration, with an Extra-low Dispersion element.
The result is rounder, sharper stars and clean, neutral blacks — a night sky rendered with clarity and balance.
Triple Filters. Tuned for the Night
A built-in three-filter system adapts to the conditions you are shooting in.
Light Pollution Filter
Dual-band, OIII 30nm and Hα 20nm, reducing moonlight and urban skyglow.
Dark Frame Filter
Automatically subtracts sensor noise from long exposures.
UV/IR Cut Filter
Blocks unwanted infrared light, preserving clean and accurate colour.
128 GB Built-In Storage and 10,000mAh Battery
With 128 GB of onboard storage and up to 9 hours of runtime (ZWO laboratory test data), you can shoot through the night without stopping.
No interruptions. No lost moments.
Unlock More Ways to Explore
Remote Control Across Regions
Connect to a Seestar in another location entirely. Whether your local sky is cloudy, light-polluted or in daylight, you can observe, capture and organise files from a device under better skies.
Seestar AI Assistant
Use simple voice commands to enjoy real-time guidance as you explore the night sky. Name a target and it searches, slews and starts capturing.
Open Integration, Built to Expand
Seestar supports the ASCOM Alpaca open protocol, enabling compatibility with third-party software including N.I.N.A. and more.
From automated observing to fully tailored workflows, Seestar is more than a device. It is an open platform.
Join the AstroImg
Connect, Share, Explore — Worldwide
A place where stargazers gather to explore the cosmos, create, share and inspire each other.
What’s in the Box
+44 20 8064 2116
