Which innovative telescope design, introduced by Celestron in 1970, revolutionized amateur astronomy by making compact, portable telescopes with long focal lengths commercially viable?

The telescope market has evolved dramatically over the decades, with companies constantly innovating to bring the wonders of the cosmos to consumers. From manual tracking systems to computerized mounts, from traditional refractors to modern compound designs, astronomy product development has transformed how we experience the night sky. This poll tests your knowledge about a significant product design breakthrough that revolutionized amateur astronomy in the early 1970s.

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Schmidt-Cassegrain Telescope (SCT)
Dobsonian Reflector
Maksutov-Newtonian Hybrid
Digital Refractor System (DRS)