: a telescope whose principal focusing element is a lens
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Johnston captured the footage from his backyard in Scottsdale, Arizona, using a 160mm refractor equipped with a specialized hydrogen-alpha solar filter.—Daisy Dobrijevic, Space.com, 5 June 2026 There are three basic types of telescopes: refractors, reflectors, and Schmidt-Cassegrain telescopes.—Mike Lynch, Twin Cities, 9 Nov. 2025 Even a basic and small telescope, such as a 2-inch refractor, can get you a glimpse of the rings.—Jamie Carter, Forbes.com, 20 Sep. 2025 Since then: In 1904: The Observatory purchased a larger telescope, the 16-inch Alvan Clark and Sons refractor, and built another building on the campus.—Jennie Key, Cincinnati Enquirer, 26 May 2025 See All Example Sentences for refractor