{"id":111800,"date":"2026-09-06T07:00:00","date_gmt":"2026-09-06T05:00:00","guid":{"rendered":"https:\/\/www.telescoop.nl\/?p=111800"},"modified":"2026-10-06T21:20:10","modified_gmt":"2026-10-06T19:20:10","slug":"seestar-s50-pro-vs-s30-pro","status":"publish","type":"post","link":"https:\/\/www.telescoop.nl\/en\/seestar-s50-pro-vs-s30-pro\/","title":{"rendered":"Seestar S50 Pro vs S30 Pro: which Seestar is right for you?"},"content":{"rendered":"

The Seestar S50 Pro vs S30 Pro<\/strong>Now that both Pro models are available, this is the logical choice within the Seestar line. They share the same app, the same operation, and the same philosophy: fully automatic astrophotography without technical prior knowledge. The difference lies in the optics, the size, and the price. The Seestar S30 Pro<\/a> The (\u20ac699) is the compact entry-level model. Seestar S50 Pro<\/a> (\u20ac999) the top model. In this comparison, we put them side by side fairly, based on our own experience with the S30 Pro and the first international reviews of the S50 Pro.<\/p>\n\n\n\n

The main differences at a glance<\/h2>\n\n\n\n
<\/th>Seestar S30 Pro<\/th>Seestar S50 Pro<\/th><\/tr><\/thead>
Opening<\/strong><\/td>30 mm<\/td>50 mm<\/td><\/tr>
Focal length<\/strong><\/td>160 mm<\/td>260 mm<\/td><\/tr>
Light output<\/strong><\/td>Basis<\/td>Almost three times as much light<\/td><\/tr>
Sensor (camera)<\/strong><\/td>Sony IMX585, 8.3 MP<\/td>OmniVision OS08B10, 8.3 MP<\/td><\/tr>
Camera<\/strong><\/td>4K, with wide-angle camera<\/td>Dual 4K camera (telephoto and wide-angle)<\/td><\/tr>
Battery<\/strong><\/td>6,000 mAh<\/td>10,000 mAh, up to about 9 hours<\/td><\/tr>
Format<\/strong><\/td>Very compact, soft carrying case<\/td>Larger and heavier, sturdy case with tripod<\/td><\/tr>
Price<\/strong><\/td>\u20ac699<\/td>\u20ac999<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n

Which sensor is in the S50 Pro?<\/h2>\n\n\n\n

Strikingly, ZWO does not mention the sensor model of the S50 Pro anywhere on its own product page. The specifications only mention a 1\/1.2-inch sensor with 8.3 megapixels and 2.9-micrometer pixels. These are the exact same values as the Sony IMX585 in the S30 Pro, but it is a different chip: after inquiry by international reviewers, ZWO confirmed that the telephoto camera uses the OmniVision OS08B10. Behind the wide-angle lens is a Sony IMX586. Reviewers who tested both models saw no practical performance difference between the two sensors; the difference in image quality comes from the optics, not the chip.<\/p>\n\n\n\n

Optics: 50 mm captures almost three times as much light<\/h2>\n\n\n\n

The main difference is the aperture: 30 mm versus 50 mm. That may seem like a small difference, but light yield increases with the lens\u2019s surface area. The S50 Pro therefore captures almost three times as much light as the S30 Pro. In practice, this means the same subject in less time, or much more detail in the same session. The longer brandfocal length of 260 mm also gives smaller objects such as globular clusters and compact nebulae more image detail, whereas the S30 Pro with its 160 mm shows a wider field of view.<\/p>\n\n\n\n

That does not suddenly make the S30 Pro outdated. Its quadruplet APO optics deliver a sharp, color-pure image, and its wide field of view is well-suited for large objects such as the Andromeda Galaxy. In our Seestar S30 Pro review<\/a> read what he shows in practice.<\/p>\n\n\n\n

Size and battery: travel convenience versus endurance<\/h2>\n\n\n\n

The S30 Pro fits into a backpack, case and all, and is ready to go anywhere in under a minute. The S50 Pro is noticeably larger and heavier and comes in a sturdy case with a tripod. On the other hand, the S50 Pro\u2019s battery (10,000 mAh, up to about 9 hours) lasts through a full night of shooting, whereas the S30 Pro\u2019s 6,000 mAh battery will likely require a power bank. If you mainly work from your backyard, you\u2019ll hardly notice the weight; if you take the telescope with you on trips, you\u2019ll feel the difference right away.<\/p>\n\n\n\n

Who is which Seestar for?<\/h2>\n\n\n\n