Which astronomy equipment company began as a small optical shop in 1975 and revolutionized amateur astronomy with its 'Dobsonian' telescope design before becoming a major retail success?

Test your knowledge about corporate history in the astronomy industry! Many major telescope and astronomy equipment manufacturers have fascinating origin stories and brand evolutions that reflect the development of modern astronomy itself. This poll challenges you to identify the correct corporate history fact about one of astronomy's most influential companies. Do you know how these stellar brands developed over time?

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Celestron - founded by electronics engineer Tom Johnson, who started by developing an innovative mirror-grinding machine
Orion Telescopes & Binoculars - began as a one-man operation by Tim Gieseler who popularized the accessible Dobsonian mount design
Meade Instruments - started by John Diebel as a mail-order venture selling imported telescopes before manufacturing their own
Sky-Watcher - founded by astronomical photographer David Shen specifically to commercialize Dobsonian designs