50 mm APO optics
More light, controlled colour.
A 260 mm f/5.2 telephoto system uses four elements, including ED glass, to combine compact reach with apochromatic colour correction.
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ZWO
ZWO Seestar S50 Pro Smart Telescope
$1,549.00
$1,699.00
-9%
ZWO Seestar S50 Pro
A 50 mm smart telescope. Now with a second 4K view of the sky.
The S50 Pro brings a 50 mm four-element APO telephoto system, a 63° wide camera, motorised mount and guided Seestar app into one compact instrument. Move from deep-sky targets to Milky Way panoramas, the Sun, Moon, birds and landscapes without building a separate imaging rig.
50 mm
four-element APO aperture
2 × 4K
telephoto and wide cameras
128 GB
storage
Up to 9 h
under stated ZWO lab conditions
Dual-camera 4K system
Use reach when the target is small. Use width when the sky is the subject.
The 260 mm telephoto system frames nebulae, clusters and galaxies in a 2.8° portrait field. The separate 6 mm wide camera opens to 63° for broad star fields, Milky Way compositions and terrestrial scenes. Each camera uses an 8.3 MP sensor with a native portrait resolution of 2160 × 3840.
One connected imaging system
Optics, filters and finishing tools work as one.
The S50 Pro is built around the full path from incoming light to a finished image, so each part contributes to a simpler field workflow.
Integrated filter set
Change the capture path in the app.
The telephoto path includes UV/IR cut, a dual-band light-pollution filter and a dark-frame filter. The wide camera also includes UV/IR cut.
Guided stacking
Let signal build over time.
GOTO, tracking and live stacking are coordinated in the Seestar workflow, allowing faint detail to accumulate while you monitor progress on your phone.
App finishing tools
Refine the result before export.
Crop, brightness, contrast, noise reduction, saturation and star-reduction or removal tools provide a practical first edit without immediately moving to desktop software.
A guided first session
From packed case to a tracked target in three steps.
Step 01
Set up and connect
Place the tripod on stable ground, attach the S50 Pro and connect through the Seestar app. A compatible NFC phone can simplify the connection flow.
Step 02
Choose a mode and target
Select Stargazing, Milky Way, Solar System or Scenery. For sky targets, use the app database to choose what is visible and start GOTO.
Step 03
Track, stack and refine
The telescope can autofocus, track and capture while the app builds the image. Finish in the app or export JPEG, FITS or video files for another workflow.
Download the Seestar app for iPhone and iPad or download the Seestar app for Android.
Imaging range
See what the S50 Pro can make.
Manufacturer-supplied examples and interface visuals are representative; capture conditions and final results vary.
Milky Way mode
Give the wide sky room to become the picture.
The 63° wide camera supports Milky Way panorama stitching, foreground freeze, constellation recognition and star-trail capture, with mosaic compositions up to 8K. Results depend strongly on darkness, transparency, framing and capture settings; light pollution can limit Milky Way detail.
Plan a multi-target night
Plan mode can schedule several targets, reducing the need to start every capture manually. Check the forecast first: weather can interrupt the sequence and does not itself power the telescope off.
Move into equatorial mode
With accurate polar alignment, equatorial mode supports exposures up to 60 seconds. A suitable equatorial head or wedge is an optional extra and is not included.
Connect an advanced workflow
ASCOM Alpaca and N.I.N.A. support give experienced imagers a path beyond the standard mobile-app experience.
Who the S50 Pro suits.
A good fit if
- You want guided GOTO, autofocus, tracking and stacking instead of assembling a first imaging rig.
- You value both 50 mm telephoto reach and a separate wide 4K view for nightscapes and context.
- You want room to grow into Plan mode, equatorial alignment or external control later.
Another setup may suit you if
- Your priority is direct eyepiece viewing; the S50 Pro is a camera-and-app observing system.
- You need guaranteed Milky Way results from a bright urban site; wide-field outcomes remain sky-condition dependent.
- You require full 4K output while digitally zoomed; 4K capture applies at 1×, resolution drops at 2× and 4×, and live preview is 1080p.
In the box.
Seestar S50 Pro smart telescope1×
Tripod1×
Protective case1×
Magnetic solar filter1×
USB Type-C cable1×
Quick start guide and safety instructionsIncluded
Astronomy-themed stickersIncluded
Good to know.
The battery figure has specific test conditions.
Up to 9 hours is ZWO laboratory data measured above 25°C in Alt-Az mode using the telephoto sensor in Stargazing mode. Temperature, mode, wireless use and capture settings can change actual runtime.
Darkness still matters.
Automated capture does not remove the effect of light pollution or poor transparency. Milky Way detail and deep-sky stacking results vary with the site, target, weather and settings.
Equatorial mode adds setup as well as capability.
The 60-second exposure option is not available in Alt-Az mode. It requires accurate polar alignment and a suitable head or wedge sold separately.
Treat unattended plans as weather dependent.
A sudden weather change can prevent Plan mode from completing, and the telescope does not automatically power off simply because the plan is interrupted.
Use the solar filter every time you image the Sun.
Fit the supplied magnetic solar filter correctly before pointing at the Sun. Never point the main camera directly at the Sun without the filter installed.
Manufacturer support
Seestar's published smart-telescope warranty.
The current policy lists two years for the smart telescope main body and camera, one year for the rechargeable battery and 90 days for other unlisted accessories. Proof of purchase, exclusions, regional terms and Australian consumer rights apply.
Coverage periodsMain body and camera excluding battery: 2 years. Battery: 1 year. Other unlisted accessories: 90 days.
Important conditionsKeep valid proof of purchase. Damage from liquid, external force, improper use or unauthorised modification is among the published exclusions. The product manual prevails if terms differ.
After-sales routeFor an authorised-reseller purchase, begin with the reseller's applicable process. View the Seestar warranty policy or open the official ZWO support portal.
Specifications.
Telephoto optics
Optical design
4-element apochromatic, including ED glass
Aperture
50 mm
Focal length
260 mm
Focal ratio
f/5.2
35 mm equivalent
880 mm
Working distance
15 m to infinity
Wide optics
Aperture
3.4 mm
Focal length
6 mm
Focal ratio
f/1.75
35 mm equivalent
35 mm
Working distance
0.1 m to infinity
Cameras
Telephoto sensor
1/1.2-inch, 2.9 micrometre pixels, 8.3 MP
Wide sensor
1/2-inch, 1.6 micrometre pixels, 8.3 MP
Native resolution
2160 × 3840 (8.3 MP) per camera
Field of view
Telephoto: 2.8° portrait; wide: 63° portrait
Filters
UV/IR cut
Telephoto and wide cameras
Dual-band light-pollution filter
Telephoto camera; OIII 30 nm and H-alpha 20 nm
Dark-frame filter
Telephoto camera
Solar filter
External magnetic filter included
Storage, power and files
Storage
128 GB eMMC; approximately 100 GB available
Battery
10,000 mAh; up to 9 hours under stated ZWO lab conditions
USB-C power input
5 V 3 A or 12 V 3 A
Still formats
JPEG, FITS
Video formats
MP4, AVI
Connectivity and mount
Interfaces
2.4/5 GHz Wi-Fi, Bluetooth, USB-C and Wi-Fi reset
Stated wireless range
Wi-Fi up to 10 m; Bluetooth up to 5 m in ideal open conditions
Mount type
Alt-Az; equatorial mode supported
Slew speed
1× to 1440×
Home position
Mechanical home
Base connection
3/8-16
Capture modes
Deep-sky mosaics
DSO mosaic stitching supported
Physical and environmental
Main-unit dimensions, folded
140 × 149 × 268 mm
Main-unit net weight
2.8 kg
Operating temperature
-10 to 40°C
Charging temperature
0 to 40°C
Storage temperature
-10 to 60°C
Operating humidity
20 to 80% RH
Storage humidity
20 to 50% RH
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ZWO Seestar S50 Pro
A 50 mm smart telescope. Now with a second 4K view of the sky.
The S50 Pro brings a 50 mm four-element APO telephoto system, a 63° wide camera, motorised mount and guided Seestar app into one compact instrument. Move from deep-sky targets to Milky Way panoramas, the Sun, Moon, birds and landscapes without building a separate imaging rig.
50 mm
four-element APO aperture
2 × 4K
telephoto and wide cameras
128 GB
storage
Up to 9 h
under stated ZWO lab conditions
Dual-camera 4K system
Use reach when the target is small. Use width when the sky is the subject.
The 260 mm telephoto system frames nebulae, clusters and galaxies in a 2.8° portrait field. The separate 6 mm wide camera opens to 63° for broad star fields, Milky Way compositions and terrestrial scenes. Each camera uses an 8.3 MP sensor with a native portrait resolution of 2160 × 3840.
One connected imaging system
Optics, filters and finishing tools work as one.
The S50 Pro is built around the full path from incoming light to a finished image, so each part contributes to a simpler field workflow.
50 mm APO optics
More light, controlled colour.
A 260 mm f/5.2 telephoto system uses four elements, including ED glass, to combine compact reach with apochromatic colour correction.
Integrated filter set
Change the capture path in the app.
The telephoto path includes UV/IR cut, a dual-band light-pollution filter and a dark-frame filter. The wide camera also includes UV/IR cut.
Guided stacking
Let signal build over time.
GOTO, tracking and live stacking are coordinated in the Seestar workflow, allowing faint detail to accumulate while you monitor progress on your phone.
App finishing tools
Refine the result before export.
Crop, brightness, contrast, noise reduction, saturation and star-reduction or removal tools provide a practical first edit without immediately moving to desktop software.
A guided first session
From packed case to a tracked target in three steps.
Step 01
Set up and connect
Place the tripod on stable ground, attach the S50 Pro and connect through the Seestar app. A compatible NFC phone can simplify the connection flow.
Step 02
Choose a mode and target
Select Stargazing, Milky Way, Solar System or Scenery. For sky targets, use the app database to choose what is visible and start GOTO.
Step 03
Track, stack and refine
The telescope can autofocus, track and capture while the app builds the image. Finish in the app or export JPEG, FITS or video files for another workflow.
Download the Seestar app for iPhone and iPad or download the Seestar app for Android.
Imaging range
See what the S50 Pro can make.
Manufacturer-supplied examples and interface visuals are representative; capture conditions and final results vary.
Milky Way mode
Give the wide sky room to become the picture.
The 63° wide camera supports Milky Way panorama stitching, foreground freeze, constellation recognition and star-trail capture, with mosaic compositions up to 8K. Results depend strongly on darkness, transparency, framing and capture settings; light pollution can limit Milky Way detail.
Plan a multi-target night
Plan mode can schedule several targets, reducing the need to start every capture manually. Check the forecast first: weather can interrupt the sequence and does not itself power the telescope off.
Move into equatorial mode
With accurate polar alignment, equatorial mode supports exposures up to 60 seconds. A suitable equatorial head or wedge is an optional extra and is not included.
Connect an advanced workflow
ASCOM Alpaca and N.I.N.A. support give experienced imagers a path beyond the standard mobile-app experience.
Who the S50 Pro suits.
A good fit if
- You want guided GOTO, autofocus, tracking and stacking instead of assembling a first imaging rig.
- You value both 50 mm telephoto reach and a separate wide 4K view for nightscapes and context.
- You want room to grow into Plan mode, equatorial alignment or external control later.
Another setup may suit you if
- Your priority is direct eyepiece viewing; the S50 Pro is a camera-and-app observing system.
- You need guaranteed Milky Way results from a bright urban site; wide-field outcomes remain sky-condition dependent.
- You require full 4K output while digitally zoomed; 4K capture applies at 1×, resolution drops at 2× and 4×, and live preview is 1080p.
In the box.
Seestar S50 Pro smart telescope1×
Tripod1×
Protective case1×
Magnetic solar filter1×
USB Type-C cable1×
Quick start guide and safety instructionsIncluded
Astronomy-themed stickersIncluded
Good to know.
The battery figure has specific test conditions.
Up to 9 hours is ZWO laboratory data measured above 25°C in Alt-Az mode using the telephoto sensor in Stargazing mode. Temperature, mode, wireless use and capture settings can change actual runtime.
Darkness still matters.
Automated capture does not remove the effect of light pollution or poor transparency. Milky Way detail and deep-sky stacking results vary with the site, target, weather and settings.
Equatorial mode adds setup as well as capability.
The 60-second exposure option is not available in Alt-Az mode. It requires accurate polar alignment and a suitable head or wedge sold separately.
Treat unattended plans as weather dependent.
A sudden weather change can prevent Plan mode from completing, and the telescope does not automatically power off simply because the plan is interrupted.
Use the solar filter every time you image the Sun.
Fit the supplied magnetic solar filter correctly before pointing at the Sun. Never point the main camera directly at the Sun without the filter installed.
Manufacturer support
Seestar's published smart-telescope warranty.
The current policy lists two years for the smart telescope main body and camera, one year for the rechargeable battery and 90 days for other unlisted accessories. Proof of purchase, exclusions, regional terms and Australian consumer rights apply.
Coverage periodsMain body and camera excluding battery: 2 years. Battery: 1 year. Other unlisted accessories: 90 days.
Important conditionsKeep valid proof of purchase. Damage from liquid, external force, improper use or unauthorised modification is among the published exclusions. The product manual prevails if terms differ.
After-sales routeFor an authorised-reseller purchase, begin with the reseller's applicable process. View the Seestar warranty policy or open the official ZWO support portal.
Specifications.
Telephoto optics
Optical design
4-element apochromatic, including ED glass
Aperture
50 mm
Focal length
260 mm
Focal ratio
f/5.2
35 mm equivalent
880 mm
Working distance
15 m to infinity
Wide optics
Aperture
3.4 mm
Focal length
6 mm
Focal ratio
f/1.75
35 mm equivalent
35 mm
Working distance
0.1 m to infinity
Cameras
Telephoto sensor
1/1.2-inch, 2.9 micrometre pixels, 8.3 MP
Wide sensor
1/2-inch, 1.6 micrometre pixels, 8.3 MP
Native resolution
2160 × 3840 (8.3 MP) per camera
Field of view
Telephoto: 2.8° portrait; wide: 63° portrait
Filters
UV/IR cut
Telephoto and wide cameras
Dual-band light-pollution filter
Telephoto camera; OIII 30 nm and H-alpha 20 nm
Dark-frame filter
Telephoto camera
Solar filter
External magnetic filter included
Storage, power and files
Storage
128 GB eMMC; approximately 100 GB available
Battery
10,000 mAh; up to 9 hours under stated ZWO lab conditions
USB-C power input
5 V 3 A or 12 V 3 A
Still formats
JPEG, FITS
Video formats
MP4, AVI
Connectivity and mount
Interfaces
2.4/5 GHz Wi-Fi, Bluetooth, USB-C and Wi-Fi reset
Stated wireless range
Wi-Fi up to 10 m; Bluetooth up to 5 m in ideal open conditions
Mount type
Alt-Az; equatorial mode supported
Slew speed
1× to 1440×
Home position
Mechanical home
Base connection
3/8-16
Capture modes
Deep-sky mosaics
DSO mosaic stitching supported
Physical and environmental
Main-unit dimensions, folded
140 × 149 × 268 mm
Main-unit net weight
2.8 kg
Operating temperature
-10 to 40°C
Charging temperature
0 to 40°C
Storage temperature
-10 to 60°C
Operating humidity
20 to 80% RH
Storage humidity
20 to 50% RH
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