Refractor OTA (Optical Tube Assembly)

Are you ready to reach the absolute pinnacle in astrophotography or visual observations? Then the choice of a separate refractor OTA (or, Optical Tube Assembly) The ultimate step. By purchasing a standalone tube, you have complete freedom to combine it with a (GoTo) mount you already own. In this category, you'll find high-quality apochromatic refractors (APOs) from absolute top brands like Sky-Watcher and TeleVue. Thanks to their advanced ED triplet or quadruplet designs, these tubes definitively eliminate color fringing (chromatic aberration). The result? Razor-sharp, high-contrast images and pinpoint-sharp stars from edge to edge on your camera sensor.