ZWO has announced the release of the Seestar S50 Pro, a much-anticipated upgrade to its original Seestar S50 model that popularized smart telescopes in 2023.
Although this new all-in-one smart telescope remains a 50mm apochromatic refractor, its optics have been upgraded to a four-element apochromatic lens with extra-low dispersion (ED) glass, which is designed to improve star sharpness across the frame — especially in the corners — and reduce chromatic aberration. It's also got a slightly increased focal length of 260mm (f/5.2).
