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What is the difference between a 2" eyepiece and a 1¼" eyepiece?

Summary by Astronomy.com
What is the benefit of a 2″ eyepiece compared to a 1¼” eyepiece? Tom NagyNorth Ridgeville, Ohio A 2″ eyepiece delivers a wider true field of view (the actual amount of sky visible) than a 1¼” eyepiece of the same focal length. Two factors determine the true field: the telescope’s focal length and the diameterContinue reading "What is the difference between a 2″ eyepiece and a 1¼” eyepiece?" The post What is the difference between a 2″ eyepiece a…

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Astronomy.com broke the news in United States on Monday, March 17, 2025.
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