The ZWO Seestar S50 Pro (2026) keeps the S50’s ease of use with a 50 mm aperture and a 1/1.2″ 8.3 MP sensor, a second wide-angle camera, 128 GB storage and up to 9 h of battery. The most capable model in the Seestar line-up.
| Optical type | Quadruplet apochromatic refractor (ED glass) |
| Aperture | 50 mm |
| Focal length | 260 mm |
| f/ ratio | f/5.2 |
| Sensor | OmniVision OS08B10 1/1.2" 8.3 MP (tele) + Sony IMX586 1/2" 8.3 MP (wide) |
| Resolution | 8.3 Mpx |
| Field of view | ≈ 2.8° (tele) · ≈ 63° (wide) |
| Mount | Motorized alt-azimuth |
| Battery life | 9 h |
| Storage | 128 GB (~100 GB usable) |
| Weight | ~2.8 kg |
| Indicative price | 999 € |
| Equatorial mode | Yes — native, no accessory required (accurate polar alignment needed) |
| Built-in filters | UV/IR-cut + dual-band Ha/OIII |
| Mosaic | Yes |
| Tripod included | Yes |
| Subscription required | No — all features included |
| Connectivity | Wi-Fi 2.4/5 GHz · Bluetooth · USB-C |
| Release | 08/2026 |
| Availability | New (2026) |
| Indicative price (US) | $999 |
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