Periodic collimation is critical for the best optical performance. But clear nights are for observing, while telescope maintenance is a cloudy night activity. Unfortunately,...
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In 2019, Oceanside Photo and Telescope (OPT) introduced the Radian Triad filter, an aggressive tri-band filter designed to allow one-shot color cameras to produce...
In the 1990s, Celestron teamed with SBIG to create the Fastar astrophotography system which allowed the replacement of the traditional Schmidt-Cassegrain secondary mirror with...